WO2012120468A1 - Exercise apparatus - Google Patents

Exercise apparatus Download PDF

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Publication number
WO2012120468A1
WO2012120468A1 PCT/IB2012/051087 IB2012051087W WO2012120468A1 WO 2012120468 A1 WO2012120468 A1 WO 2012120468A1 IB 2012051087 W IB2012051087 W IB 2012051087W WO 2012120468 A1 WO2012120468 A1 WO 2012120468A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
pedal
exercise apparatus
person
exercise
Prior art date
Application number
PCT/IB2012/051087
Other languages
French (fr)
Inventor
Willem Mare Van Der Merwe
Original Assignee
Hero Holdings Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hero Holdings Limited filed Critical Hero Holdings Limited
Priority to US14/003,773 priority Critical patent/US9265988B2/en
Priority to EP12713331.2A priority patent/EP2712324B1/en
Publication of WO2012120468A1 publication Critical patent/WO2012120468A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus ; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0214—Stretching or bending or torsioning apparatus for exercising by rotating cycling movement
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/00178—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices for active exercising, the apparatus being also usable for passive exercising
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
    • A63B21/0058—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using motors
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms
    • A63B22/0005—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms with particular movement of the arms provided by handles moving otherwise than pivoting about a horizontal axis parallel to the body-symmetrical-plane
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0173—Means for preventing injuries
    • A61H2201/018—By limiting the applied torque or force
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0192—Specific means for adjusting dimensions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50—Control means thereof
    • A61H2201/5007—Control means thereof computer controlled
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50—Control means thereof
    • A61H2201/5023—Interfaces to the user
    • A61H2201/5043—Displays
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50—Control means thereof
    • A61H2201/5058—Sensors or detectors
    • A61H2201/5061—Force sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50—Control means thereof
    • A61H2201/5058—Sensors or detectors
    • A61H2201/5064—Position sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50—Control means thereof
    • A61H2201/5058—Sensors or detectors
    • A61H2201/5071—Pressure sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50—Control means thereof
    • A61H2201/5058—Sensors or detectors
    • A61H2201/5079—Velocity sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2203/00—Additional characteristics concerning the patient
    • A61H2203/04—Position of the patient
    • A61H2203/0406—Standing on the feet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2203/00—Additional characteristics concerning the patient
    • A61H2203/04—Position of the patient
    • A61H2203/0425—Sitting on the buttocks
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
    • A63B2022/0635—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers specially adapted for a particular use
    • A63B2022/0647—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers specially adapted for a particular use for cycling in a standing position, i.e. without a seat or support for the trunk
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0664—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing an elliptic movement
    • A63B2022/067—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing an elliptic movement with crank and handles being on opposite sides of the exercising apparatus with respect to the frontal body-plane of the user, e.g. the crank is behind and handles are in front of the user
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers
    • A63B2071/0072—Limiting the applied force, torque, movement or speed
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B2071/065—Visualisation of specific exercise parameters
    • A63B2071/0652—Visualisation or indication relating to symmetrical exercise, e.g. right-left performance related to spinal column
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/22—Resisting devices with rotary bodies
    • A63B21/225—Resisting devices with rotary bodies with flywheels
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms
    • A63B22/001—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms by simultaneously exercising arms and legs, e.g. diagonally in anti-phase
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/30—Speed
    • A63B2220/34—Angular speed
    • A—HUMAN NECESSITIES
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    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/50—Force related parameters
    • A63B2220/54—Torque
    • A—HUMAN NECESSITIES
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    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/50—Force related parameters
    • A63B2220/58—Measurement of force related parameters by electric or magnetic means
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    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/89—Field sensors, e.g. radar systems
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry

Definitions

  • This invention relates to an exercise apparatus. More specifically, the invention relates to an exercise apparatus that provides a repetitive exercising cycle.
  • Repetitive or cyclical exercise apparatuses are frequently used in strength and fitness training and conditioning, as well as in the rehabilitation of injuries and physiotherapy.
  • Such apparatuses include, for example, stationary indoor bicycles, step climbing machines and elliptical movement machines, amongst others.
  • Muscles can be exercised in various ways. In isotonic exercises the muscle length changes as force is exerted by the muscle. Isotonic exercises can either involve concentric contraction, in which a muscle shortens as it exerts force, or eccentric action, in which a muscle lengthens as it absorbs a force. In eccentric action, instead of pulling a joint in the direction of the muscle contraction, the muscle works to slow down or decelerate the movement of the joint. Exercises such as lowering a heavy weight or doing squats typically involve eccentric muscle action.
  • cyclical exercise apparatuses induce mostly concentric muscle contractions, although a number of exercise apparatuses have been produced that allow exercise with both eccentric and concentric muscle contractions.
  • These apparatus typically include pedals that are operated by the user's legs or arms and a seat in which the user sits in a recumbent position.
  • the apparatuses are often intended for rehabilitation after injury and consequently operate at low speeds and, even when operating at high speeds, provide inadequate performance enhancement for competitive sportsmen.
  • the present invention seeks to provide an improved exercise apparatus that addresses or ameliorates the shortfalls set out herein above.
  • an exercise apparatus comprising:
  • each pedal being moveably attached to the support structure and being configured to move relative to the support structure in a cycle;
  • the apparatus includes a power controller that is configured to control the motor to run at a
  • said pedal is attached to the support structure and said support structure is configured such that, when a foot of the person engages the pedal, the person's body is in a generally upright orientation such that the weight of the person can be predominantly borne by said pedal, i.e. the person can stand on the pedal or pedals while using the apparatus, although this does not rule out configurations where the person can be seated in an upright (not a reclined) orientation.
  • the "load” exerted by the person may be a force or a moment or the like and practically always results in a torque, but the more general word “load” is used to include force, moment, torque, or the like.
  • the apparatus may be configured so that the pedal can selectively receive said load from the person in said first direction or said second direction and the motor may be configured to drive the pedal in said cycle in the first direction or the second direction - irrespective of the direction in which the load is applied by the person on the pedals. Accordingly, the pedals can rotate in either direction and can be used for concentric or eccentric training.
  • the exercise apparatus may includes two of said pedals and the controller may be configured to control the motor to vary the torque exerted by the motor during a movement cycle of the pedals, so that the torque exerted by the person's legs on the two pedals can vary and/or so that the person can exercise with a combination of concentric and eccentric muscle contraction.
  • the pedal may be attached to the support structure by a crank arm, e.g. the exercise apparatus may be a stationary bicycle, and the crank length of the crank arm may be adjustable - preferably by automated means, while the crank arm is rotating. This accommodates persons with limited movement ability to use the machine.
  • the user may also prefer an extended (longer) crank arm in order to generate a higher torque.
  • the apparatus may include a seat and the position of seat may be adjustable by automated means, while the apparatus is in use.
  • the apparatus may include a user interface that is configured for entering the predetermine speed of the motor.
  • the display interface may also allow input of the desired exercise time as well as the weight, age or other biometric information of a user.
  • the apparatus may make provision for a user to make a selection from different training routines, such as "rehabilitation”, “high performance”, “endurance” etc.
  • the motor and power controller may be configured to limit torque exerted by the motor to drive the pedal in the second direction, to a predetermined maximum torque and the user interface may be configured for entering the predetermined maximum torque.
  • the motor may be an AC servo motor and the torque exerted by the motor to drive the pedal in its cycle in the second direction, may be limited by limiting the current supplied to the motor.
  • the load exerted by the person in the first direction may be monitored by monitoring current input to the motor. Instead or in addition, the load may be measured by one or more strain gauges on said pedal.
  • the exercise apparatus may include a display for the load exerted by the person in the first direction and/or for the speed of rotation of the pedals in the second direction.
  • the apparatus may include an electronic storage medium for recording the load exerted by the person in the first direction and/or other data and after completion of an exercise routine, the data may be transferred to an external device such as a removable storage medium or computer for post-processing and assessment.
  • the exercise apparatus may include one or more sensors that are configured to detect motion of the pedals and the apparatus may be configured to calculate the position of each pedal from its speed and to calculate the load exerted by the person on each pedal in the first direction, from the pedal's position and the torque in the motor.
  • the exercise apparatus may be a hybrid stationary bicycle wherein its support structure includes a first substructure for supporting handlebars and a second substructure for supporting said pedals, the first and second substructures being moveable by independent angular and telescopic adjustment to adjust the bodily orientation of the person.
  • the exercise apparatus may be an elliptical movement machine including two of the pedals in the form of foot rests, said foot rests being carried on rods which are pivotally connected to a mechanism for moving each of them cyclically in an upright plane.
  • kits for retrofitting an exercise apparatus to form an exercise apparatus as described herein above comprising a motor that is attachable to a support structure of the exercise apparatus to drive the pedal(s) of the apparatus in a cycle in the second direction that is opposite from the first direction of the load exerted on the pedal(s) by a person, the kit including a power controller that is configured to control the motor to run at a predetermined speed in said second direction.
  • the kit may include any of the features described hereinabove.
  • Figure 1 is a perspective view of one embodiment of an exercise apparatus according to the invention.
  • Figure 2 is an oblique side view of the motor and power controller of the exercise apparatus illustrated in Figure 1 ;
  • Figure 3 is a front view of the display interface controller of the exercise apparatus illustrated in Figure 1 ;
  • Figure 4 is a perspective view of a second embodiment of an exercise apparatus according to the invention.
  • Figure 5 is a perspective view of a third embodiment of an exercise apparatus according to the invention.
  • Figure 6 is a schematic perspective view of a further embodiment of exercise apparatus according to the invention, in the form of a stationary bicycle;
  • Figure 7 is a schematic perspective view of a hybrid recumbent exercise apparatus according to the invention.
  • Figure 8 is a side view of the apparatus illustrated in Figure 7 in an upright condition.
  • Figure 9 is a side view of the apparatus illustrated in Figure 7 in a recumbent condition.
  • FIG. 1 illustrates one embodiment of exercise apparatus in accordance with the invention in the form of a stationary indoor bicycle (10).
  • the stationary bicycle (10) has a support structure in the form of a frame (12) with a pair of feet (14, 16) on which the frame rests.
  • Handlebars (18) extend from the frame at a forward end (20) thereof and a seat in the form of a saddle (22) is fixed to a height-adjustable seat post (23) that extends from the frame (12) at a back end (24) thereof.
  • Both the handlebars and the saddle are preferably adjustable both as regards height and position relative to the frame in a forward and rearward direction.
  • a flywheel (26) is rotatably supported by the frame (12) beneath the handlebars (18) and adjacent the forward end (20) of the frame (12) and is connected by a chain (28) to a crank sprocket (30).
  • a timing belt and pulley may be used.
  • the crank sprocket (30) is mounted on an axle (31 ) which has one or preferably two grips and in the illustrated embodiment the grips are a pair of pedals (32).
  • the pedals (32) can include toe clips for securing a user's foot (not shown) to the pedals.
  • a user interface or display interface controller (34) is mounted to the handlebars (18) in a position so as to be visible to the user.
  • the display interface controller (34) will be more fully described below with reference to Figure 3.
  • a pair of proximity sensors (36) is mounted to the frame (12) in a housing adjacent the pedals (32).
  • the proximity sensors (36) are preferably magnetic sensors, such as electromagnets, that produce an electric signal when a pedal travels past the relevant sensor (36).
  • a plastic cowling (38) covers the flywheel (26) and also houses a motor and controller arrangement, which can be seen in Figure 2.
  • FIG 2 illustrates the forward end of this embodiment of stationary bicycle (10) with the cowling (38) removed.
  • a roller (40) is mounted to press against the circumference (or rim (42)) of the flywheel (26).
  • the roller (40) is connected to an electric motor (44) by a drive belt (45).
  • the electric motor (44) is of the type known as an AC servomotor, driven by a motor power controller (46).
  • the power controller (46) includes a number of input and output ports.
  • a mains supply cable (48) enters the power controller (46) and provides AC supply power to the power controller.
  • a motor output port (50) is connected to the power controller and supplies regulated AC power to the motor (44).
  • a communications port (52) on the power controller is connected by a cable (56) to the display interface controller (34).
  • the power controller (46) is encoded not only to control the rotational speed of the motor (44), but also to provide feedback to the interface controller (34) on rotational position and speed of the motor and to measure torque.
  • the motor (44) selected is a constant power device and therefore the output torque of the motor will vary directly with the input current when the supply voltage is maintained at a given value. By maintaining voltage and limiting the current to a specific value, therefore, it is possible to limit the output torque of the motor to a predetermined value.
  • FIG. 3 illustrates the display interface controller (34) in more detail.
  • the display interface controller includes a touch sensitive screen (100) on which a number of adjustable values are displayed.
  • the adjustable values include a speed setting (102), a torque setting (104), a time setting (106) and login and logout buttons (108).
  • the values of these fields can, in this embodiment of the invention, be adjusted by tapping on the appropriate arrows displayed adjacent the field.
  • the display interface controller (34) shown in Figure 3 is merely illustrative of one possible display configuration, and many other layouts or arrangements are possible.
  • the display interface controller (34) also includes an instantaneous speed display (1 10) and an instantaneous torque display (1 12).
  • the speed and torque displays (1 10, 1 12) include moving arrows that show the user how close the instantaneous speed and torque are to the selected speed and torque.
  • Many other arrangements for displaying the instantaneous speed and torque are possible. For example, the actual instantaneous speed and torque values may be displayed next to the desired values (102, 104).
  • the display interface controller (34) also includes a left/right field (1 14) which indicates the torque applied to the left and right pedals, as will be further explained below.
  • the display interface controller also includes its own onboard microprocessor for running software that provides the described functionality.
  • the display interface controller has a high-speed graphics controller and a 32 bit RISC CPU processor that runs a Windows-based HMI software tool.
  • the display interface controller (34) includes a communications port (1 16) for communicating with the power controller (46) through the cable (56). Communication takes place in both directions between the display interface controller (34) and the power controller (46).
  • the display interface controller communicates the selected speed and selected torque to the power controller and the power controller communicates the instantaneous speed and output torque to the display interface controller. Any appropriate communications interface between the power controller and the display interface controller can be used.
  • the power controller (46) controls the speed of the motor (44) by varying the frequency of the regulated AC power supplied to the motor.
  • the motor (44) thus rotates at a predetermined speed, which rotates the roller (40), flywheel (26) and pedals (32).
  • the power controller (46) controls the speed of the motor (44) to maintain its predetermined speed, irrespective of torque that may be exerted on it, but if an abnormally high torque is exerted on the motor that exceeds the maximum permitted torque entered on the interface controller (34), the power controller limits the current to the motor to a value which corresponds to the maximum allowed torque.
  • the power controller (46) causes a torque to be exerted by the motor to counter the load from the pedals and thus maintain the predetermined speed.
  • the torque exerted by the motor (44) is thus a direct indication of the load exerted on the pedals (32).
  • the motor (44) includes a sensor (not shown) which measures the instantaneous speed of rotation of the motor and communicates this to the power controller (46), which in turn communicates it to the display device (34) for display on the speed display (1 10).
  • a sensor could be provided for detecting the speed of rotation of the flywheel (26) and the sensor could communicate directly with the display device (34), or the rotational speeds of the motor, roller and flywheel could be determined from the cadence of the pedals (32) from the proximity sensors (36).
  • the power controller (46) also communicates the instantaneous current supplied to the motor to the display device (34). As explained, the instantaneous current supplied to the motor is proportional to the instantaneous torque generated by the motor. The display device is therefore able to display the instantaneous torque on the display (1 12).
  • the display interface controller (34) also receives signals from the proximity sensors (36) by means of a wireless link, or other link such as a cable (not shown). By comparing the signals received from the proximity sensors (36) with the instantaneous torque in the motor (44), the microprocessor built into the display interface controller is able to calculate which pedal is experiencing a higher load. This relative torque is displayed by means of the left/right display (1 14) to enable a user thereof to monitor which leg is working hardest in an attempt to balance the loads on the two legs. Other methods of determining the load exerted on each pedal can be used, for example, by providing a pressure sensor on each pedal that communicates with the display interface controller.
  • the display interface controller may enable the user to enter login details by means of the login button (108), and the display interface controller (34) may have a memory for recording the instantaneous torque and speed over time.
  • the display interface controller may include a printer output to enable a user record to be printed.
  • the memory may also store the weight, height and other biometric information of the user so that this information is only entered once during a registration stage. Data from the exercise routine may be recorded to removable memory for post-processing and assessment.
  • a user enters the relevant login information and, as may be required, biometric information on the touch sensitive screen (100) and relevant training routines, such as "rehabilitation", “high performance”, “endurance” etc, as may be appropriate.
  • the user selects the desired speed and maximum torque limit settings by means of the fields (102, 104) on the touch sensitive screen and enters the duration for the workout by means of a time field (120).
  • the selected values are displayed on the display screen, and the user will then push a start button (not shown).
  • the display interface controller then communicates the speed and torque settings to the power controller (46), which spins the motor (44) up to the desired speed.
  • the motor drives the roller (40) by means of the drive belt (45), which in turn, in this embodiment of the invention, drives the flywheel (26), which in turn rotates the pedals (32) by means of the chain (28).
  • the user begins to resist the motion of the pedals by exerting a (crank fashion) load on the pedals in a direction opposite to the direction of rotation of the pedals.
  • the instantaneous torque and speed are calculated by the display interface controller (34) and displayed on the speed display (1 10) and the torque display (1 12), and the relative torque applied to the left and right pedals is displayed on the left/right display (1 14).
  • the torque display will indicate that the instantaneous torque is approaching the selected maximum torque limit (104). While such a display could be shown in many ways, in the illustrative embodiment shown in Figure 3, the upper arrow (122) of the torque display (1 12) will move to the right as the instantaneous torque increases and approach the lower arrow (124). The user may attempt to maintain a certain torque during a certain stage of the workout and/or may attempt to keep the upper arrow as close as possible to the lower arrow to ensure that the instantaneous torque is close to the selected maximum torque limit (104).
  • the purpose of entering the selected torque is primarily a safety feature, which prevents the motor (44) from exerting a torque that is so high that it may injure the user, e.g. if an inexperienced user's leg "locks" in resisting rotation.
  • the left/right display may have a moving bar (126) to indicate the relative pressure applied to the pedals, and the user will attempt to keep the moving bar centred.
  • the bicycle (10) would be used in the same manner, except that the user would attempt to keep the moving bar of the left/right display (1 14) to the left or right, as the case may be.
  • the power controller (46) will prevent the motor from spinning faster than the selected speed (102) and will prevent the motor from supplying more than the desired maximum torque (104). Therefore, if the user exerts more torque by force on the pedals (32) than the maximum selected torque (104), the motor (44) will slow down. In this way, it is even possible for a user to stop the pedals (32), by applying more resistance than the selected maximum torque. However, the objective is for the user to maintain a predetermined resistive torque, which may be a resistive torque that approaches the maximum selected torque (104), without slowing down the motor (44) too much. It has been found that such a balance is easily achieved after a user becomes accustomed to using the exercise apparatus (10).
  • the user exercises the quadriceps muscles using primarily eccentric muscular contractions, rather than concentric contractions of conventional stationary bicycles.
  • the display interface controller (34) and power controller (46) may be programmed to provide various safety features. For example, based on the biometric information of the user (such as, for example, age and weight), the display interface controller is able to calculate a safe maximum torque and speed setting for that user, and will prevent higher torque and speed settings from being selected.
  • the apparatus (10) also has an easily accessible emergency stop for additional safety.
  • the invention therefore provides an exercise apparatus of familiar configuration that has a repetitive exercising cycle, and that induces primarily eccentric muscle action. Exercises using the exercise apparatus have been found to provide an easy and comfortable way for eccentric exercises to be accomplished.
  • the pedals (32) can be selected for rotation in either direction for eccentric exercise and if a user desires, he can exercise by exerting load in the same direction as rotation, i.e. the apparatus can also be used for concentric muscle action.
  • the exercise apparatus of the invention could be any exercise apparatus that provides a repetitive exercising cycle.
  • the exercise apparatus could, for example, be a rotating shoulder machine (200) as shown in Figure 4.
  • the grips are a pair of handles (205) that are rotated by a user in a sitting position.
  • the handles (205) may be connected to a mechanism that may or may not include a flywheel inside the machine.
  • the mechanism may be driven by a motor and controller arrangement in the same way as the stationary bicycle (10) shown in Figures 1 to 3.
  • the exercise apparatus could also be an elliptical movement machine (300) as shown in Figure 5.
  • the grips or pedals are a pair of footrests (305) on which a user stands.
  • the footrests (305) are carried on rods (310) which are pivotally mounted to a flywheel (315).
  • the flywheel (315) is driven by a motor and controller arrangement in the same way as the flywheel of the stationary bicycle (10) shown in Figures 1 to 3.
  • Figure 6 illustrates a further embodiment of stationary bicycle (400) according to the invention in which there is no flywheel and the entire motor and controller assembly is housed in a housing (405) at the rear of the bicycle.
  • FIG. 8 another embodiment of an apparatus according to the invention is a hybrid recumbent exercise apparatus (500) of the stationary bicycle variety wherein the seat (502) is carried at one end of an angularly adjustable and telescopically adjustable rear beam (504) that is adjustable approximately about the axis of rotation of the pedals (506).
  • the saddle can thus be adjusted between positions illustrated in Figure 8 in which the seat is spaced upwardly from the pedals in a approximately conventional relationship thereto for a stationary bicycle for use by a user in a generally upright position and a very much lowered position in which the pedals are forward of the seat and generally at the same horizontal level for use by a user in a generally recumbent position, as illustrated in Figure 9.
  • the handle bars (508) are carried at the upper end of an angularly and telescopically adjustable forward beam (510) so that the handles can be adjusted to a comfortable position for a person sitting on the seat in either its upright or its recumbent position, as illustrated in Figure 9.
  • the motor, power controller and display device could also be retrofitted to an appropriate type of existing repetitive exercise apparatus to provide a kit according to an embodiment of the invention.
  • the elements of the kit may include any of the features described herein, and the kit may also include the sensors for detecting the instantaneous position of the grip.
  • existing exercise apparatuses could be retrofitted to provide for eccentric muscular exercises.
  • a. Proprioception The user is required to exercise fine muscle control in order to maintain his upright body position, while exercising.
  • Lateral stability The user uses his legs reciprocally, or if he is predominantly exercising one of them, he uses it cyclically and as a result, his body would tend to move laterally with each exercise cycle. This movement would be countered by the seat in a reclined exercise and would be countered in part by the seat in an upright seated exercise, but would not be countered at all during upright, unseated exercise. The lateral movement (insofar as it is not countered by a seat) needs to be countered by muscle action of the user.
  • Running is known to be a remarkable form of exercise and when running, muscles are used in eccentric and concentric contractions, but substantial strain is placed on joints such as the knees and ankles by the high impact with which the forces are applied that are countered by eccentric muscle contraction.
  • no impact loads are exerted when using the exercise apparatus of the present invention, due to the cyclic nature of the motions.
  • the effectiveness of the present invention is further enhanced by the ability to set the apparatus (10) so that muscles are only used eccentrically, are used only concentrically, or if desired, a combination of eccentric and concentric muscle action can be used.
  • the lengths of the crank arms of the pedals (22) are adjustable, which allows the length of spatial leg movement to be changed (i.e. the stroke travelled by the feet is adjusted), allows the angular movement to be adjusted (i.e. the extent of hip and knee flexion can be adjusted), and allows the moment arm of the crank action in the pedals to be adjusted.
  • These adjustments are preferably made without interrupting the exercise, by automated adjustment of the pedal stroke length and this allows seamless changes in the exercise, e.g. increasing forces required or increasing the length or angles of movement during an exercise, as required for specialised training or rehabilitation programmes.
  • the heights and forwards/rearwards positions of the saddles on the exercise apparatus can be made to be adjustable during the exercise, to adjust the reach and angular movement during the exercise.

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Abstract

Exercise apparatus (10) is provided, which includes pedals (32) on which a user can exert loads in a first direction, and a motor (44) that is configured to drive the pedals (32) in the opposite direction and that is controlled to run at a predetermined speed, so that the loads from the user are exerted by using muscles eccentrically. The apparatus (10) is configured such that the user's body is in a generally upright orientation when using the apparatus – preferably in a standing orientation, without using a seat.

Description

EXERCISE APPARATUS
FIELD OF THE INVENTION
This invention relates to an exercise apparatus. More specifically, the invention relates to an exercise apparatus that provides a repetitive exercising cycle.
BACKGROUND TO THE INVENTION
Repetitive or cyclical exercise apparatuses are frequently used in strength and fitness training and conditioning, as well as in the rehabilitation of injuries and physiotherapy. Such apparatuses include, for example, stationary indoor bicycles, step climbing machines and elliptical movement machines, amongst others.
Muscles can be exercised in various ways. In isotonic exercises the muscle length changes as force is exerted by the muscle. Isotonic exercises can either involve concentric contraction, in which a muscle shortens as it exerts force, or eccentric action, in which a muscle lengthens as it absorbs a force. In eccentric action, instead of pulling a joint in the direction of the muscle contraction, the muscle works to slow down or decelerate the movement of the joint. Exercises such as lowering a heavy weight or doing squats typically involve eccentric muscle action.
Studies have indicated that exercise which includes eccentric muscle action can produce greater gains in strength than exercise involving concentric contractions alone. Other benefits of exercises involving eccentric muscle contractions have also been observed.
Most cyclical exercise apparatuses induce mostly concentric muscle contractions, although a number of exercise apparatuses have been produced that allow exercise with both eccentric and concentric muscle contractions. These apparatus typically include pedals that are operated by the user's legs or arms and a seat in which the user sits in a recumbent position. The apparatuses are often intended for rehabilitation after injury and consequently operate at low speeds and, even when operating at high speeds, provide inadequate performance enhancement for competitive sportsmen.
The present invention seeks to provide an improved exercise apparatus that addresses or ameliorates the shortfalls set out herein above. SUMMARY OF THE INVENTION
According to a first aspect of the present invention there is provided an exercise apparatus, said apparatus comprising:
a support structure;
at least one, but preferably two pedals, that is engaegeable by a person to receive a load from said person in a first direction, each pedal being moveably attached to the support structure and being configured to move relative to the support structure in a cycle; and
a motor that is configured to drive the pedal in its cycle in a second direction that is opposite from said first direction, and wherein the apparatus includes a power controller that is configured to control the motor to run at a
predetermined speed in the second direction.
wherein said pedal is attached to the support structure and said support structure is configured such that, when a foot of the person engages the pedal, the person's body is in a generally upright orientation such that the weight of the person can be predominantly borne by said pedal, i.e. the person can stand on the pedal or pedals while using the apparatus, although this does not rule out configurations where the person can be seated in an upright (not a reclined) orientation.
The "load" exerted by the person may be a force or a moment or the like and practically always results in a torque, but the more general word "load" is used to include force, moment, torque, or the like.
The apparatus may be configured so that the pedal can selectively receive said load from the person in said first direction or said second direction and the motor may be configured to drive the pedal in said cycle in the first direction or the second direction - irrespective of the direction in which the load is applied by the person on the pedals. Accordingly, the pedals can rotate in either direction and can be used for concentric or eccentric training.
The exercise apparatus may includes two of said pedals and the controller may be configured to control the motor to vary the torque exerted by the motor during a movement cycle of the pedals, so that the torque exerted by the person's legs on the two pedals can vary and/or so that the person can exercise with a combination of concentric and eccentric muscle contraction.
The pedal may be attached to the support structure by a crank arm, e.g. the exercise apparatus may be a stationary bicycle, and the crank length of the crank arm may be adjustable - preferably by automated means, while the crank arm is rotating. This accommodates persons with limited movement ability to use the machine. The user may also prefer an extended (longer) crank arm in order to generate a higher torque.
The apparatus may include a seat and the position of seat may be adjustable by automated means, while the apparatus is in use.
The apparatus may include a user interface that is configured for entering the predetermine speed of the motor. The display interface may also allow input of the desired exercise time as well as the weight, age or other biometric information of a user. The apparatus may make provision for a user to make a selection from different training routines, such as "rehabilitation", "high performance", "endurance" etc.
The motor and power controller may be configured to limit torque exerted by the motor to drive the pedal in the second direction, to a predetermined maximum torque and the user interface may be configured for entering the predetermined maximum torque.
The motor may be an AC servo motor and the torque exerted by the motor to drive the pedal in its cycle in the second direction, may be limited by limiting the current supplied to the motor.
The load exerted by the person in the first direction may be monitored by monitoring current input to the motor. Instead or in addition, the load may be measured by one or more strain gauges on said pedal. The exercise apparatus may include a display for the load exerted by the person in the first direction and/or for the speed of rotation of the pedals in the second direction. The apparatus may include an electronic storage medium for recording the load exerted by the person in the first direction and/or other data and after completion of an exercise routine, the data may be transferred to an external device such as a removable storage medium or computer for post-processing and assessment.
The exercise apparatus may include one or more sensors that are configured to detect motion of the pedals and the apparatus may be configured to calculate the position of each pedal from its speed and to calculate the load exerted by the person on each pedal in the first direction, from the pedal's position and the torque in the motor.
The exercise apparatus may be a hybrid stationary bicycle wherein its support structure includes a first substructure for supporting handlebars and a second substructure for supporting said pedals, the first and second substructures being moveable by independent angular and telescopic adjustment to adjust the bodily orientation of the person.
The exercise apparatus may be an elliptical movement machine including two of the pedals in the form of foot rests, said foot rests being carried on rods which are pivotally connected to a mechanism for moving each of them cyclically in an upright plane.
According to another aspect of the present invention there is provided a kit for retrofitting an exercise apparatus to form an exercise apparatus as described herein above, the kit comprising a motor that is attachable to a support structure of the exercise apparatus to drive the pedal(s) of the apparatus in a cycle in the second direction that is opposite from the first direction of the load exerted on the pedal(s) by a person, the kit including a power controller that is configured to control the motor to run at a predetermined speed in said second direction. The kit may include any of the features described hereinabove. BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the present invention, and to show how the same may be carried into effect, the invention will now be described by way of non-limiting example, with reference to the accompanying drawings in which:
Figure 1 is a perspective view of one embodiment of an exercise apparatus according to the invention;
Figure 2 is an oblique side view of the motor and power controller of the exercise apparatus illustrated in Figure 1 ;
Figure 3 is a front view of the display interface controller of the exercise apparatus illustrated in Figure 1 ;
Figure 4 is a perspective view of a second embodiment of an exercise apparatus according to the invention;
Figure 5 is a perspective view of a third embodiment of an exercise apparatus according to the invention;
Figure 6 is a schematic perspective view of a further embodiment of exercise apparatus according to the invention, in the form of a stationary bicycle;
Figure 7 is a schematic perspective view of a hybrid recumbent exercise apparatus according to the invention;
Figure 8 is a side view of the apparatus illustrated in Figure 7 in an upright condition; and,
Figure 9 is a side view of the apparatus illustrated in Figure 7 in a recumbent condition.
DETAILED DESCRIPTION WITH REFERENCE TO THE DRAWINGS
Figure 1 illustrates one embodiment of exercise apparatus in accordance with the invention in the form of a stationary indoor bicycle (10). The stationary bicycle (10) has a support structure in the form of a frame (12) with a pair of feet (14, 16) on which the frame rests. Handlebars (18) extend from the frame at a forward end (20) thereof and a seat in the form of a saddle (22) is fixed to a height-adjustable seat post (23) that extends from the frame (12) at a back end (24) thereof. Both the handlebars and the saddle are preferably adjustable both as regards height and position relative to the frame in a forward and rearward direction. A flywheel (26) is rotatably supported by the frame (12) beneath the handlebars (18) and adjacent the forward end (20) of the frame (12) and is connected by a chain (28) to a crank sprocket (30). In the alternative, a timing belt and pulley may be used.
The crank sprocket (30) is mounted on an axle (31 ) which has one or preferably two grips and in the illustrated embodiment the grips are a pair of pedals (32). The pedals (32) can include toe clips for securing a user's foot (not shown) to the pedals.
A user interface or display interface controller (34) is mounted to the handlebars (18) in a position so as to be visible to the user. The display interface controller (34) will be more fully described below with reference to Figure 3.
A pair of proximity sensors (36) is mounted to the frame (12) in a housing adjacent the pedals (32). The proximity sensors (36) are preferably magnetic sensors, such as electromagnets, that produce an electric signal when a pedal travels past the relevant sensor (36).
In the embodiment of the invention illustrated in Figure 1 , a plastic cowling (38) covers the flywheel (26) and also houses a motor and controller arrangement, which can be seen in Figure 2.
Figure 2 illustrates the forward end of this embodiment of stationary bicycle (10) with the cowling (38) removed. Inside the cowling, a roller (40) is mounted to press against the circumference (or rim (42)) of the flywheel (26). The roller (40) is connected to an electric motor (44) by a drive belt (45). The electric motor (44) is of the type known as an AC servomotor, driven by a motor power controller (46).
The power controller (46) includes a number of input and output ports. A mains supply cable (48) enters the power controller (46) and provides AC supply power to the power controller. A motor output port (50) is connected to the power controller and supplies regulated AC power to the motor (44). A communications port (52) on the power controller is connected by a cable (56) to the display interface controller (34). The power controller (46) is encoded not only to control the rotational speed of the motor (44), but also to provide feedback to the interface controller (34) on rotational position and speed of the motor and to measure torque. The motor (44) selected is a constant power device and therefore the output torque of the motor will vary directly with the input current when the supply voltage is maintained at a given value. By maintaining voltage and limiting the current to a specific value, therefore, it is possible to limit the output torque of the motor to a predetermined value.
Figure 3 illustrates the display interface controller (34) in more detail. The display interface controller includes a touch sensitive screen (100) on which a number of adjustable values are displayed. The adjustable values include a speed setting (102), a torque setting (104), a time setting (106) and login and logout buttons (108). The values of these fields can, in this embodiment of the invention, be adjusted by tapping on the appropriate arrows displayed adjacent the field. However, it will be appreciated that the display interface controller (34) shown in Figure 3 is merely illustrative of one possible display configuration, and many other layouts or arrangements are possible.
The display interface controller (34) also includes an instantaneous speed display (1 10) and an instantaneous torque display (1 12). In this embodiment, the speed and torque displays (1 10, 1 12) include moving arrows that show the user how close the instantaneous speed and torque are to the selected speed and torque. Many other arrangements for displaying the instantaneous speed and torque are possible. For example, the actual instantaneous speed and torque values may be displayed next to the desired values (102, 104).
The display interface controller (34) also includes a left/right field (1 14) which indicates the torque applied to the left and right pedals, as will be further explained below. The display interface controller also includes its own onboard microprocessor for running software that provides the described functionality. In a preferred embodiment, the display interface controller has a high-speed graphics controller and a 32 bit RISC CPU processor that runs a Windows-based HMI software tool.
The display interface controller (34) includes a communications port (1 16) for communicating with the power controller (46) through the cable (56). Communication takes place in both directions between the display interface controller (34) and the power controller (46). The display interface controller communicates the selected speed and selected torque to the power controller and the power controller communicates the instantaneous speed and output torque to the display interface controller. Any appropriate communications interface between the power controller and the display interface controller can be used.
Based on the selected speed communicated to it by the display interface controller (34), the power controller (46) controls the speed of the motor (44) by varying the frequency of the regulated AC power supplied to the motor. The motor (44) thus rotates at a predetermined speed, which rotates the roller (40), flywheel (26) and pedals (32). During normal use, the power controller (46) controls the speed of the motor (44) to maintain its predetermined speed, irrespective of torque that may be exerted on it, but if an abnormally high torque is exerted on the motor that exceeds the maximum permitted torque entered on the interface controller (34), the power controller limits the current to the motor to a value which corresponds to the maximum allowed torque. The torque exerted by the motor (44) to rotate the flywheel (26), pedals (32), etc. will be minimal if no load is exerted on the pedals, but if a load is exerted on one or both of the pedals, the power controller (46) causes a torque to be exerted by the motor to counter the load from the pedals and thus maintain the predetermined speed. The torque exerted by the motor (44) is thus a direct indication of the load exerted on the pedals (32).
The motor (44) includes a sensor (not shown) which measures the instantaneous speed of rotation of the motor and communicates this to the power controller (46), which in turn communicates it to the display device (34) for display on the speed display (1 10). In an alternative embodiment, a sensor could be provided for detecting the speed of rotation of the flywheel (26) and the sensor could communicate directly with the display device (34), or the rotational speeds of the motor, roller and flywheel could be determined from the cadence of the pedals (32) from the proximity sensors (36).
The power controller (46) also communicates the instantaneous current supplied to the motor to the display device (34). As explained, the instantaneous current supplied to the motor is proportional to the instantaneous torque generated by the motor. The display device is therefore able to display the instantaneous torque on the display (1 12).
The display interface controller (34) also receives signals from the proximity sensors (36) by means of a wireless link, or other link such as a cable (not shown). By comparing the signals received from the proximity sensors (36) with the instantaneous torque in the motor (44), the microprocessor built into the display interface controller is able to calculate which pedal is experiencing a higher load. This relative torque is displayed by means of the left/right display (1 14) to enable a user thereof to monitor which leg is working hardest in an attempt to balance the loads on the two legs. Other methods of determining the load exerted on each pedal can be used, for example, by providing a pressure sensor on each pedal that communicates with the display interface controller.
In one embodiment of the invention, the display interface controller may enable the user to enter login details by means of the login button (108), and the display interface controller (34) may have a memory for recording the instantaneous torque and speed over time. In such a case, the display interface controller may include a printer output to enable a user record to be printed. The memory may also store the weight, height and other biometric information of the user so that this information is only entered once during a registration stage. Data from the exercise routine may be recorded to removable memory for post-processing and assessment.
In use, a user enters the relevant login information and, as may be required, biometric information on the touch sensitive screen (100) and relevant training routines, such as "rehabilitation", "high performance", "endurance" etc, as may be appropriate. The user then selects the desired speed and maximum torque limit settings by means of the fields (102, 104) on the touch sensitive screen and enters the duration for the workout by means of a time field (120). The selected values are displayed on the display screen, and the user will then push a start button (not shown). The display interface controller then communicates the speed and torque settings to the power controller (46), which spins the motor (44) up to the desired speed. The motor drives the roller (40) by means of the drive belt (45), which in turn, in this embodiment of the invention, drives the flywheel (26), which in turn rotates the pedals (32) by means of the chain (28).
As the pedals start turning, the user begins to resist the motion of the pedals by exerting a (crank fashion) load on the pedals in a direction opposite to the direction of rotation of the pedals. The instantaneous torque and speed are calculated by the display interface controller (34) and displayed on the speed display (1 10) and the torque display (1 12), and the relative torque applied to the left and right pedals is displayed on the left/right display (1 14).
As the user applies more resistance to the motion of the pedals, the torque display will indicate that the instantaneous torque is approaching the selected maximum torque limit (104). While such a display could be shown in many ways, in the illustrative embodiment shown in Figure 3, the upper arrow (122) of the torque display (1 12) will move to the right as the instantaneous torque increases and approach the lower arrow (124). The user may attempt to maintain a certain torque during a certain stage of the workout and/or may attempt to keep the upper arrow as close as possible to the lower arrow to ensure that the instantaneous torque is close to the selected maximum torque limit (104). However, the purpose of entering the selected torque is primarily a safety feature, which prevents the motor (44) from exerting a torque that is so high that it may injure the user, e.g. if an inexperienced user's leg "locks" in resisting rotation.
During typical use, the user will monitor the left/right display (1 14) to ensure that roughly equal torque is being applied to the left and right pedals. The left/right display may have a moving bar (126) to indicate the relative pressure applied to the pedals, and the user will attempt to keep the moving bar centred. However, if a user needs to exercise one leg more than another or only needs to exercise one leg, the bicycle (10) would be used in the same manner, except that the user would attempt to keep the moving bar of the left/right display (1 14) to the left or right, as the case may be.
The power controller (46) will prevent the motor from spinning faster than the selected speed (102) and will prevent the motor from supplying more than the desired maximum torque (104). Therefore, if the user exerts more torque by force on the pedals (32) than the maximum selected torque (104), the motor (44) will slow down. In this way, it is even possible for a user to stop the pedals (32), by applying more resistance than the selected maximum torque. However, the objective is for the user to maintain a predetermined resistive torque, which may be a resistive torque that approaches the maximum selected torque (104), without slowing down the motor (44) too much. It has been found that such a balance is easily achieved after a user becomes accustomed to using the exercise apparatus (10).
By applying a resistive load against the rotation of the pedals (32), the user exercises the quadriceps muscles using primarily eccentric muscular contractions, rather than concentric contractions of conventional stationary bicycles.
The display interface controller (34) and power controller (46) may be programmed to provide various safety features. For example, based on the biometric information of the user (such as, for example, age and weight), the display interface controller is able to calculate a safe maximum torque and speed setting for that user, and will prevent higher torque and speed settings from being selected.
The apparatus (10) also has an easily accessible emergency stop for additional safety.
The invention therefore provides an exercise apparatus of familiar configuration that has a repetitive exercising cycle, and that induces primarily eccentric muscle action. Exercises using the exercise apparatus have been found to provide an easy and comfortable way for eccentric exercises to be accomplished.
The pedals (32) can be selected for rotation in either direction for eccentric exercise and if a user desires, he can exercise by exerting load in the same direction as rotation, i.e. the apparatus can also be used for concentric muscle action.
It will be understood that while the invention has been described with reference to a stationary indoor bicycle, the exercise apparatus of the invention could be any exercise apparatus that provides a repetitive exercising cycle.
The exercise apparatus could, for example, be a rotating shoulder machine (200) as shown in Figure 4. In Figure 4, the grips are a pair of handles (205) that are rotated by a user in a sitting position. The handles (205) may be connected to a mechanism that may or may not include a flywheel inside the machine. The mechanism may be driven by a motor and controller arrangement in the same way as the stationary bicycle (10) shown in Figures 1 to 3.
The exercise apparatus could also be an elliptical movement machine (300) as shown in Figure 5. In Figure 5, the grips or pedals are a pair of footrests (305) on which a user stands. The footrests (305) are carried on rods (310) which are pivotally mounted to a flywheel (315). The flywheel (315) is driven by a motor and controller arrangement in the same way as the flywheel of the stationary bicycle (10) shown in Figures 1 to 3.
Figure 6 illustrates a further embodiment of stationary bicycle (400) according to the invention in which there is no flywheel and the entire motor and controller assembly is housed in a housing (405) at the rear of the bicycle.
Referring now to Figures 7 to 9, another embodiment of an apparatus according to the invention is a hybrid recumbent exercise apparatus (500) of the stationary bicycle variety wherein the seat (502) is carried at one end of an angularly adjustable and telescopically adjustable rear beam (504) that is adjustable approximately about the axis of rotation of the pedals (506). The saddle can thus be adjusted between positions illustrated in Figure 8 in which the seat is spaced upwardly from the pedals in a approximately conventional relationship thereto for a stationary bicycle for use by a user in a generally upright position and a very much lowered position in which the pedals are forward of the seat and generally at the same horizontal level for use by a user in a generally recumbent position, as illustrated in Figure 9.
Similarly, the handle bars (508) are carried at the upper end of an angularly and telescopically adjustable forward beam (510) so that the handles can be adjusted to a comfortable position for a person sitting on the seat in either its upright or its recumbent position, as illustrated in Figure 9.
It will be understood that the motor, power controller and display device could also be retrofitted to an appropriate type of existing repetitive exercise apparatus to provide a kit according to an embodiment of the invention. The elements of the kit may include any of the features described herein, and the kit may also include the sensors for detecting the instantaneous position of the grip. In his way, existing exercise apparatuses could be retrofitted to provide for eccentric muscular exercises.
Use of the various exercise apparatus described above has shown a remarkable increase in the effectiveness of the exercise between recumbent exercises (e.g. practiced on the apparatus (200) shown in Figure 4) and upright seated exercise (e.g. practiced on the apparatus (10), (400) and (500) shown in Figures 1 -3 and 6-9). There is a further remarkable increase in effectiveness of the exercise between upright seated exercise and upright standing exercise (e.g. practiced on the apparatus (300) shown in Figure 5 or when the user exercises in a standing position using apparatus (10), (400) or (500) as shown in Figures 1 -3, 6 and 8). Accordingly, in the preferred embodiments of the invention, the user remains in a standing position and the saddles (22) are not used or are removed from the exercise apparatus. The handlebars (18) assist the user in maintaining balance and preferably do not contribute significantly (or at all) in bearing the weight of the user or bearing forces or countering forces exerted on the pedals (32).
The remarkable increase in the effectiveness of exercise in unsupported upright orientations results from additional muscle action required, including:
a. Proprioception. The user is required to exercise fine muscle control in order to maintain his upright body position, while exercising.
b. Core strength: the user is required to use his core muscles to stabilise him and maintain his upright orientation, but also in using his body weight to counter his leg movement - which counter action would have been provided by the seat in a reclined exercise apparatus.
c. Lateral stability: The user uses his legs reciprocally, or if he is predominantly exercising one of them, he uses it cyclically and as a result, his body would tend to move laterally with each exercise cycle. This movement would be countered by the seat in a reclined exercise and would be countered in part by the seat in an upright seated exercise, but would not be countered at all during upright, unseated exercise. The lateral movement (insofar as it is not countered by a seat) needs to be countered by muscle action of the user.
To a large extent, using the exercise apparatus described above with the user in an upright position, preferably not seated, simulates running, in part, by including eccentric muscle action, proprioception, core muscle action, lateral stability, etc. without placing the strain on joints, that is associated with running. Running is known to be a remarkable form of exercise and when running, muscles are used in eccentric and concentric contractions, but substantial strain is placed on joints such as the knees and ankles by the high impact with which the forces are applied that are countered by eccentric muscle contraction. By contrast, no impact loads are exerted when using the exercise apparatus of the present invention, due to the cyclic nature of the motions.
The effectiveness of the present invention is further enhanced by the ability to set the apparatus (10) so that muscles are only used eccentrically, are used only concentrically, or if desired, a combination of eccentric and concentric muscle action can be used.
Further, in preferred embodiments of the invention, the lengths of the crank arms of the pedals (22) are adjustable, which allows the length of spatial leg movement to be changed (i.e. the stroke travelled by the feet is adjusted), allows the angular movement to be adjusted (i.e. the extent of hip and knee flexion can be adjusted), and allows the moment arm of the crank action in the pedals to be adjusted. These adjustments are preferably made without interrupting the exercise, by automated adjustment of the pedal stroke length and this allows seamless changes in the exercise, e.g. increasing forces required or increasing the length or angles of movement during an exercise, as required for specialised training or rehabilitation programmes.
Similarly, the heights and forwards/rearwards positions of the saddles on the exercise apparatus (including the reclining apparatus (200), can be made to be adjustable during the exercise, to adjust the reach and angular movement during the exercise.

Claims

Exercise apparatus (10) comprising:
a support structure (12);
at least one pedal (32) that is engaegeable by a person to receive a load from said person in a first direction, said pedal being moveably attached to the support structure and being configured to move relative to the support structure in a cycle; and
a motor (44), said motor being configured to drive the pedal in its cycle in a second direction that is opposite from said first direction, and said apparatus including a power controller (46) that is configured to control the motor to run at a predetermined speed in said second direction; characterised in that said pedal is attached to the support structure and said support structure is configured such that, when a foot of the person engages the pedal, the person's body is in a generally upright orientation such that the weight of the person can be predominantly borne by said pedal.
Exercise apparatus (10) as claimed in claim 1 , characterised in that said apparatus is configured so that the pedal (32) can selectively receive said load from the person in said first direction or said second direction.
Exercise apparatus (10) as claimed in claim 1 or claim 2, characterised in that said motor (44) is configured to drive the pedal (32) selectively in said cycle in the first direction or the second direction - irrespective of the direction in which the load is applied by the person on the pedals.
Exercise apparatus (10) as claimed in any one of the preceding claims, characterised in that said apparatus includes two of said pedals (32) and the controller (46) is configured to control the motor (44) to vary the torque exerted by the motor during a movement cycle of the pedals.
5. Exercise apparatus (10) as claimed in any one of the preceding claims, wherein said pedal (32) is attached to the support structure (12) by a crank arm (30), characterised in that the crank length of said crank arm is adjustable.
6. Exercise apparatus (10) as claimed in claim 5, characterised in that said crank length is adjustable by automated means, while the crank arm (30) is rotating.
7. Exercise apparatus (10) as claimed in any one of the preceding claims,
wherein said apparatus includes a seat (22), characterised in that the position of said seat is adjustable by automated means, while the apparatus is in use.
8. Exercise apparatus (10) as claimed in any one of the preceding claims,
characterised in that said apparatus includes a user interface (34) that is configured for entering the predetermine speed of the motor (44).
9. Exercise apparatus (10) as claimed in any one of the preceding claims,
characterised in that said motor (44) and power controller (46) are configured to limit torque exerted by the motor to drive the pedal (32) in the second direction, to a predetermined maximum torque.
10. Exercise apparatus (10) as claimed in claim 8, characterised in that said motor (44) and power controller (46) are configured to limit torque exerted by the motor to drive the pedal (32) in the second direction, to a predetermined maximum torque.
1 1 . Exercise apparatus (10) as claimed in claim 10, characterised in that said user interface (34) is configured for entering the predetermined maximum torque.
12. Exercise apparatus (10) as claimed in any one of the preceding claims,
characterised in that said motor (44) is an AC servo motor.
13. Exercise apparatus (10) as claimed in claim 10 or claim 1 1 , characterised in that said motor (44) is an AC servo motor and the torque exerted by the motor to drive the pedal (32) in its cycle in the second direction, is limited by limiting the current supplied to the motor.
14. Exercise apparatus (10) as claimed in claim 12 or claim 13, characterised in that said load exerted by the person in the first direction is monitored by monitoring current input to the motor (44).
15. Exercise apparatus (10) as claimed in any one of the preceding claims,
characterised in that said load exerted by the person in the first direction is measured by at least one strain gauge on said pedal (32).
16. Exercise apparatus (10) as claimed in any one of the preceding claims,
characterised in that said apparatus includes a display (1 12) for said load exerted by the person in the first direction.
17. Exercise apparatus (10) as claimed in any one of the preceding claims,
characterised in that said apparatus includes a display (1 10) for the speed of rotation of the pedal in the second direction.
18. Exercise apparatus (10) as claimed in any one of the preceding claims,
characterised in that said apparatus includes an electronic storage medium for recording the load exerted by the person in the first direction.
19. Exercise apparatus (10) as claimed in any one of the preceding claims,
characterised in that said apparatus includes at least one sensor configured to detect motion of said pedal (32), the apparatus being configured to calculate the position of each pedal from its speed and to calculate the load exerted by the person on each pedal in the first direction, from the pedal's position and the torque in the motor.
20. Exercise apparatus (500) as claimed in any one of the preceding claims,
characterised in that the support structure of said apparatus includes a first substructure for supporting handlebars and a second substructure for supporting said pedals, said first and second substructures being moveable to adjust the bodily orientation of the person.
21 . Exercise apparatus (300) as claimed in any one of claims 1 to 19,
characterised in that said apparatus is an elliptical movement machine including two of said pedals in the form of foot rests (305), said foot rests being carried on rods which are pivotally connected to a mechanism for moving each of them cyclically in an upright plane.
22. A kit for retrofitting an exercise apparatus, to form an exercise apparatus (10) as claimed in any one of the preceding claims, characterised in that said kit comprises a motor (44) that is attachable to a support structure (12) of the exercise apparatus to drive a pedal (32) of the apparatus in a cycle in a second direction that is opposite from a first direction of a load exerted on said pedal by a person, and said kit including a power controller (46) that is configured to control the motor to run at a predetermined speed in said second direction.
PCT/IB2012/051087 2011-03-08 2012-03-08 Exercise apparatus WO2012120468A1 (en)

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GB201103918D0 (en) 2011-04-20
US20130345025A1 (en) 2013-12-26
ZA201306632B (en) 2014-05-28
EP2712324A1 (en) 2014-04-02
US9265988B2 (en) 2016-02-23

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