US3424005A - Isometric exercising device with indicator - Google Patents

Isometric exercising device with indicator Download PDF

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US3424005A
US3424005A US519102A US3424005DA US3424005A US 3424005 A US3424005 A US 3424005A US 519102 A US519102 A US 519102A US 3424005D A US3424005D A US 3424005DA US 3424005 A US3424005 A US 3424005A
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bar
exercising
mounting means
potentiometer
retaining portion
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US519102A
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George M Brown
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GEORGE M BROWN
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GEORGE M BROWN
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/002Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices isometric or isokinetic, i.e. substantial force variation without substantial muscle motion or wherein the speed of the motion is independent of the force applied by the user
    • A63B21/0023Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices isometric or isokinetic, i.e. substantial force variation without substantial muscle motion or wherein the speed of the motion is independent of the force applied by the user for isometric exercising, i.e. substantial force variation without substantial muscle motion
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/50Force related parameters
    • A63B2220/54Torque

Definitions

  • a recent development in physical fitness exercising involves the concept of applying a force to a relatively immovable object without necessarily achieving any perceptible movement of the object.
  • Such a system of exercises has been referred to as the isometric contraction system.
  • a typical exercise usually involves a push or a pull on such an object and is generally sustained for a period of from six to twelve seconds per exercise. It will be apparent that the actual forces exerted can be estimated only from the personal experience of the individual performing the exercises and to the uninitiated at least this defect may discourage many from adopting this system of exercising in developing physical fitness.
  • FIG. 1 is a perspective view of an exercising apparatus according to the present invention showing one from of exercise which can be accomplished therewith;
  • FIG. 2 is a schematic view showing the electrical components of the apparatus in FIG. 1;
  • FIG. 3 is a perspective view of a portion of the apparatus shown in FIG. 1.
  • FIG. 1 shows a pair of vertically arranged standards or supports 10, 10 which are rigidly supported between the floor 12 and the ceiling of a room.
  • a resilient fiberglass bar or pole 16 is mounted generally horizontally on the supports 10, 10 by suitable means best shown in FIG. 3 so 3,424,005 Patented Jan. 28, 1969 that the subject 18 can exert a force generally laterally of the bar.
  • a vertically upwardly directed force is being exerted on the bar 16 by the shoulders and arms of the individual. This force is reacted through the individuals legs and back downwardly to the floor 12.
  • the bar is subjected to a substantial bending moment and being of resilient material it will flex considerably. While this form of exercise is one which the present invention is especially suitable, it should, of course, be recognized that other forms of exercise might be adapted for use with the generally horizontally disposed bar 16.
  • the resilient bar 16 is pivotally supported at either end by a pivot pin 20 best shown in FIG. 3.
  • the pivot pin 20 comprises part of the bar mounting means of FIG. 3, and said means will also be seen to include a fixed portion 22 which is adjustably attached to the support 10 by a thumbscrew 24.
  • the screw 24 can be inserted in a suitable opening provided therefor in the fixed portion 22 and threadably received in any one of a plurality of threaded openings 26, 26 in the support 10 as shown.
  • the mounting means of FIG. 3 further comprises a bar retaining portion or lever 28 which is pivotally connected to the fixed portion 22 by the aforementioned pivot pin 20 as shown.
  • the pivoted end 30 of the bar retaining portion 28 extends outwardly some distance beyond the support 10 while the free end 32 of said portion 28 extends inwardly and defines a suitable sleeve for receiving one end of the bar 16.
  • the bar retaining portion 28 functions as a lever and will be seen to move angularly with respect to the fixed portion 22 in response to the lateral flexing of the bar 16 as the latter is subjected to a bending load as shown in FIG. 1.
  • the mounting means shown in FIG. 3 is generally similar to that provided at the opposite end of the bar 16 as indicated generally in FIG. 1. More particularly, the left hand mounting means shown in FIG. 3, and the righthand mounting means will be seen from FIG. 1 to include a bar retaining portion or lever which is pivotally connected to a fixed poltion, the latter being adjustably attached to the support 10 by a thumbscrew as described hereinabove with reference to FIG. 3.
  • said means comprises a rack gear 36 aflixed to the free end of the lever 28 in generally perpendicular relation to the axis of the bar 16.
  • a resistance type potentiometer 38 is rotatably mounted in the corresponding end of the fixed portion 22 and a pair of meshing spur gears 40 and 42 'drivingly connect the rotary potentiometer 38 to the rack gear 36 so a to cause the electrical resistance of the potentiometer 38 to vary in response to angular displacement of the lever 28.
  • a convenient electromechanical device is provided for sensing relative movement between the fixed and movable portions of the bar mounting means.
  • a dust cover 44 is removably attached to the fixed portion 22 to provide a mounting .means for the left-hand portion of the bar which is generally similar in appearance to that on the right-hand portion as best shown in FIG. 1.
  • the indicating means comprises a galvanometer 46 which is electrically connected to the potentiometer 38 to cause deflection of a needle relative to a fixed scale as best shown in FIG. 1.
  • the housing for the galvanometer also includes a suitable battery 48 for providing a reference voltage to feed a reference C current to the potentiometer 38. As indicated in the schematic electrical diagram shown in FIG.
  • the reference voltage or potential can be preset by a zero adjusting control 50 and when so set the reference potential will of course be varied in response to the resistance offered by the potentiometer 38 to cause deflection of the needle of the galvanometer 46 in response to the deflections caused by lateral forces exerted on the bar 16.
  • An exercising apparatus comprising a stationary support, an elongated bar of resilient material, bar mounting means carried by said support, said means including a bar retaining portion for retaining said bar for limited flexing movement with respect to said support in proportion to the magnitude of a laterally applied force, motion sensing means associated with said mounting means to sense relative movement between said bar retaining portion and said stationary support, and indicating means responsive to said sensing means for visually displaying said relative movement to one exerting such a force on said bar.
  • said bar mounting means includes a fixed portion attachable to said stationary support, said bar retaining portion being pivotally connected to said fixed portion, and said apparatus being further characterized by means for restraining said bar at a location spaced from said bar retaining .portion.
  • said motion sensing means comprises an electromechanical device associated with said bar mounting means and adapted to vary the electric potential of an applied current in response to such movement between said bar retaining portion and said support.
  • said motion sensing means comprises an electromechanical device located between said fixed portion and said bar retaining portion of said bar mounting means and adapted to vary the electric potential of an applied current in response to relative angular movement between said fixed and pivotally connected bar retaining portions, and wherein said visual indicating means is electrically connected to said device and is electrically responsive to said variations in potential.
  • said resilient bar mounting means includes a fixed portion attachable to said stationary support, said bar retaining portion being pivotally connected to said fixed portion, and said apparatus being further characterized by means for restraining said bar at a location spaced from said bar retaining portion.
  • said bar retaining portion comprises a lever pivotally connected to said fixed portion at one end and having a free end which defines a sleeve for receiving one end of said bar.
  • said means for restraining said bar at a location spaced from said bar retaining portion comprises a second support, and a second bar mounting means, said mounting means having a second bar retaining portion adapted to receive the opposite end of said bar.
  • said motion sensing means comprises a rack gear afiixed to said free end of said lever in generally perpendicular relation to the axis of said bar, a rotary potentiometer carried by said fixed portion, and gear means drivingly connecting said rack to said potentiometer so that the electrical resistance of said potentiometer can be varied in proportion to the angular deflection of the bar, and wherein said visual indicating means is electrically connected to said potentiometer and is responsive to variations in potential caused by said resistance changes to provide a visual indication of the angular deflection of the bar with respect to a reference position when a reference potential is impressed upon said potentiometer.
  • said second bar mounting means has a Second fixed portion attachable to said second support, said first and second supports extending vertically upwardly from a floor or the like, and said first and second fixed portions being adjustably attachable to their respective supports so that said bar can be arranged horizontally at various heights above the floor.

Description

Jan. 28, 1969 G. M. BROWN 3,424,005
ISOMETRIG EXERCISING DEVICE WITH INDICATOR Filed Jan. 6, 1966 I N VEN TOR.
United States Patent 3,424,005 ISOMETRIC EXERCISING DEVICE WITH INDICATOR George M. Brown, RED. 2, Box 144, Canterbury, Conn. 06331 Filed Jan. 6, 1966, Ser. No. 519,102 U.S. Cl. 73-379 Int. Cl. G01] 5/06; A63b 21/20 9 Claims ABSTRACT OF THE DISCLOSURE This invention relates to isometric exercising devices and deals more particularly with an apparatus which combines the advantages of isometric exercising with at least some of the rewards of conventional exercising in that the user is able to obtain some indication of the magnitude of the forces which he is exerting on a substantially immovable object.
A recent development in physical fitness exercising involves the concept of applying a force to a relatively immovable object without necessarily achieving any perceptible movement of the object. Such a system of exercises has been referred to as the isometric contraction system. A typical exercise usually involves a push or a pull on such an object and is generally sustained for a period of from six to twelve seconds per exercise. It will be apparent that the actual forces exerted can be estimated only from the personal experience of the individual performing the exercises and to the uninitiated at least this defect may discourage many from adopting this system of exercising in developing physical fitness.
It is the general object of the present invention to provide an apparatus which permits the individual to exert these isometric contractions or forces and at the same time to obtain some indication of the magnitude of the forces which he is exerting not only to sustain his interest in this form of exercising, but also to give him some indication of his rate of progress as a result of following the isometric contraction system over an extended period of time.
The drawing shows a preferred embodiment of the invention and such embodiment will be described, but it will be understood that various changes may be made from the construction disclosed, and that the drawing and description are not to be construed as defining or limiting the scope of the invention, the claims forming a part of this specification being relied upon for that purpose.
Of the drawing:
FIG. 1 is a perspective view of an exercising apparatus according to the present invention showing one from of exercise which can be accomplished therewith;
FIG. 2 is a schematic view showing the electrical components of the apparatus in FIG. 1;
FIG. 3 is a perspective view of a portion of the apparatus shown in FIG. 1.
Turning now to the drawing in greater detail, FIG. 1 shows a pair of vertically arranged standards or supports 10, 10 which are rigidly supported between the floor 12 and the ceiling of a room. A resilient fiberglass bar or pole 16 is mounted generally horizontally on the supports 10, 10 by suitable means best shown in FIG. 3 so 3,424,005 Patented Jan. 28, 1969 that the subject 18 can exert a force generally laterally of the bar. As shown, a vertically upwardly directed force is being exerted on the bar 16 by the shoulders and arms of the individual. This force is reacted through the individuals legs and back downwardly to the floor 12. In such an exercise the bar is subjected to a substantial bending moment and being of resilient material it will flex considerably. While this form of exercise is one which the present invention is especially suitable, it should, of course, be recognized that other forms of exercise might be adapted for use with the generally horizontally disposed bar 16.
In accordance with the present invention, the resilient bar 16 is pivotally supported at either end by a pivot pin 20 best shown in FIG. 3. The pivot pin 20 comprises part of the bar mounting means of FIG. 3, and said means will also be seen to include a fixed portion 22 which is adjustably attached to the support 10 by a thumbscrew 24. The screw 24 can be inserted in a suitable opening provided therefor in the fixed portion 22 and threadably received in any one of a plurality of threaded openings 26, 26 in the support 10 as shown.
The mounting means of FIG. 3 further comprises a bar retaining portion or lever 28 which is pivotally connected to the fixed portion 22 by the aforementioned pivot pin 20 as shown. The pivoted end 30 of the bar retaining portion 28 extends outwardly some distance beyond the support 10 while the free end 32 of said portion 28 extends inwardly and defines a suitable sleeve for receiving one end of the bar 16. As so constructed, the bar retaining portion 28 functions as a lever and will be seen to move angularly with respect to the fixed portion 22 in response to the lateral flexing of the bar 16 as the latter is subjected to a bending load as shown in FIG. 1.
The mounting means shown in FIG. 3 is generally similar to that provided at the opposite end of the bar 16 as indicated generally in FIG. 1. More particularly, the left hand mounting means shown in FIG. 3, and the righthand mounting means will be seen from FIG. 1 to include a bar retaining portion or lever which is pivotally connected to a fixed poltion, the latter being adjustably attached to the support 10 by a thumbscrew as described hereinabove with reference to FIG. 3.
Turning now to the construction of theleft-hand mounting means in greater detail, means for sensing relative angular movement between the bar retaining portion 28 and the stationary support 10 is provided. Preferably, and as shown said means comprises a rack gear 36 aflixed to the free end of the lever 28 in generally perpendicular relation to the axis of the bar 16. A resistance type potentiometer 38 is rotatably mounted in the corresponding end of the fixed portion 22 and a pair of meshing spur gears 40 and 42 'drivingly connect the rotary potentiometer 38 to the rack gear 36 so a to cause the electrical resistance of the potentiometer 38 to vary in response to angular displacement of the lever 28. As so constructed a convenient electromechanical device is provided for sensing relative movement between the fixed and movable portions of the bar mounting means. Finally, a dust cover 44 is removably attached to the fixed portion 22 to provide a mounting .means for the left-hand portion of the bar which is generally similar in appearance to that on the right-hand portion as best shown in FIG. 1.
In further accordance with the present invention, visual indicating means is provided for use in conjunction with the motion sensing means just described so that one exerting a force on the bar 16 is given a visual indication of the relative force which he is exerting upon said bar. Preferably, and as shown, the indicating means comprises a galvanometer 46 which is electrically connected to the potentiometer 38 to cause deflection of a needle relative to a fixed scale as best shown in FIG. 1. Preferably, and as shown, in FIG. 1 the housing for the galvanometer also includes a suitable battery 48 for providing a reference voltage to feed a reference C current to the potentiometer 38. As indicated in the schematic electrical diagram shown in FIG. 2, the reference voltage or potential can be preset by a zero adjusting control 50 and when so set the reference potential will of course be varied in response to the resistance offered by the potentiometer 38 to cause deflection of the needle of the galvanometer 46 in response to the deflections caused by lateral forces exerted on the bar 16.
The invention claimed is:
1. An exercising apparatus comprising a stationary support, an elongated bar of resilient material, bar mounting means carried by said support, said means including a bar retaining portion for retaining said bar for limited flexing movement with respect to said support in proportion to the magnitude of a laterally applied force, motion sensing means associated with said mounting means to sense relative movement between said bar retaining portion and said stationary support, and indicating means responsive to said sensing means for visually displaying said relative movement to one exerting such a force on said bar.
2. An exercising apparatus as set forth in claim 1 wherein said bar mounting means includes a fixed portion attachable to said stationary support, said bar retaining portion being pivotally connected to said fixed portion, and said apparatus being further characterized by means for restraining said bar at a location spaced from said bar retaining .portion.
3. An exercising apparatus as set forth in claim 1 wherein said motion sensing means comprises an electromechanical device associated with said bar mounting means and adapted to vary the electric potential of an applied current in response to such movement between said bar retaining portion and said support.
4. An exercising apparatus as set forth in claim 2 wherein said motion sensing means comprises an electromechanical device located between said fixed portion and said bar retaining portion of said bar mounting means and adapted to vary the electric potential of an applied current in response to relative angular movement between said fixed and pivotally connected bar retaining portions, and wherein said visual indicating means is electrically connected to said device and is electrically responsive to said variations in potential.
5. An exercising apparatus as set forth in claim 1 wherein said resilient bar mounting means includes a fixed portion attachable to said stationary support, said bar retaining portion being pivotally connected to said fixed portion, and said apparatus being further characterized by means for restraining said bar at a location spaced from said bar retaining portion.
6. An exercising apparatus as set forth in claim 5 wherein said bar retaining portion comprises a lever pivotally connected to said fixed portion at one end and having a free end which defines a sleeve for receiving one end of said bar.
7. An exercising apparatus as set forth in claim 6 wherein said means for restraining said bar at a location spaced from said bar retaining portion comprises a second support, and a second bar mounting means, said mounting means having a second bar retaining portion adapted to receive the opposite end of said bar.
8. An exercising apparatus as set forth in claim 6 wherein said motion sensing means comprises a rack gear afiixed to said free end of said lever in generally perpendicular relation to the axis of said bar, a rotary potentiometer carried by said fixed portion, and gear means drivingly connecting said rack to said potentiometer so that the electrical resistance of said potentiometer can be varied in proportion to the angular deflection of the bar, and wherein said visual indicating means is electrically connected to said potentiometer and is responsive to variations in potential caused by said resistance changes to provide a visual indication of the angular deflection of the bar with respect to a reference position when a reference potential is impressed upon said potentiometer.
9. An exercising apparatus as set forth in claim 7 wherein said second bar mounting means has a Second fixed portion attachable to said second support, said first and second supports extending vertically upwardly from a floor or the like, and said first and second fixed portions being adjustably attachable to their respective supports so that said bar can be arranged horizontally at various heights above the floor.
References Cited UNITED STATES PATENTS 911,925 2/1909 Zeno 27283 3,190,648 6/ 1965 Kallenbach 27279 3,207,511 9/1965 Hoffman 272-79 X FOREIGN PATENTS 555,634 6/1957 Italy. 163,770 12/ 1964 U.S.S.R.
ANTON O. OECHSLE, Primary Examiner.
M. R. PAGE, Assistant Examiner.
US. Cl. X.R.
US519102A 1966-01-06 1966-01-06 Isometric exercising device with indicator Expired - Lifetime US3424005A (en)

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Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605221A (en) * 1982-03-22 1986-08-12 Agosta Nino D Exercise method and apparatus
US4607841A (en) * 1982-12-16 1986-08-26 Gala Jeffrey A Isometric exercise apparatus
US4848152A (en) * 1987-05-04 1989-07-18 Pratt Jr G Andrew Biofeedback lifting monitor
US4912638A (en) * 1987-05-04 1990-03-27 Pratt Jr G Andrew Biofeedback lifting monitor
US5050871A (en) * 1989-08-01 1991-09-24 D. Scott Douglas Energy absorbing exercising and training machine
WO1994003141A1 (en) * 1992-08-05 1994-02-17 Parrsboro Metal Fabricators Limited Stretching exercise machine
US5924965A (en) * 1995-06-22 1999-07-20 Vardy; Terence Cecil Method of exercising the human body
US6616579B1 (en) 1999-06-14 2003-09-09 Sensorpad Systems, Inc. Apparatus for isometric exercise
US20030216232A1 (en) * 2002-05-17 2003-11-20 Charalabos Leftheriotis Exercise apparatus
US20050020415A1 (en) * 2003-07-22 2005-01-27 Tony Reno Isometric exercise equipment with portable feedback device
US20060264307A1 (en) * 2003-07-22 2006-11-23 Tony Reno Ideal Static Contraction Device
US20080058164A1 (en) * 2006-08-07 2008-03-06 Douglas D S Concentric and Eccentric Exercising and Training Apparatus and Method
US20080261696A1 (en) * 2007-04-20 2008-10-23 Nintendo Co., Ltd. Game controller, storage medium storing game program, and game apparatus
US20090094442A1 (en) * 2007-10-05 2009-04-09 Nintendo Co., Ltd Storage medium storing load detecting program and load detecting apparatus
US20090093315A1 (en) * 2007-10-04 2009-04-09 Nintendo Co., Ltd. Storage medium storing load detection program, load detection apparatus, and load detection method
US7578774B1 (en) * 2007-11-16 2009-08-25 Zetterberg Robert T Resistance exercise machine
US20100137063A1 (en) * 2008-11-28 2010-06-03 Mari Shirakawa Information processing apparatus and computer readable storage medium
US20100169110A1 (en) * 2008-12-26 2010-07-01 Takao Sawano Biological information management system
US20100224420A1 (en) * 2009-03-09 2010-09-09 Makoto Miyanaga Computer readable storage medium storing information processing program and information processing apparatus
US20100245236A1 (en) * 2009-03-30 2010-09-30 Nintendo Co., Ltd. Computer-readable storage medium and information processing apparatus
US20100265173A1 (en) * 2009-04-20 2010-10-21 Nintendo Co., Ltd. Information processing program and information processing apparatus
US20100302142A1 (en) * 1995-11-06 2010-12-02 French Barry J System and method for tracking and assessing movement skills in multidimensional space
US20110065550A1 (en) * 2009-09-03 2011-03-17 Thomas Joseph Cohn Isometric Grip Device and Method of Exercise
US20110077088A1 (en) * 2009-09-29 2011-03-31 Nintendo Co., Ltd. Computer-readable storage medium having stored information processing program thereon, and information processing apparatus
US20110077899A1 (en) * 2009-09-28 2011-03-31 Nintendo Co., Ltd. Computer-readable storage medium having information processing program stored therein and information processing apparatus
US20110118085A1 (en) * 2006-08-07 2011-05-19 Center for Rotational Exercise, Inc. Concentric and Eccentric Exercising and Training Apparatus and Method
US8387437B2 (en) 2007-10-31 2013-03-05 Nintendo Co., Ltd. Weight applying unit for calibration and weight applying method for calibration
US8654073B2 (en) 2009-09-30 2014-02-18 Nintendo Co., Ltd. Information processing program having computer-readable storage medium therein and information processing apparatus
US9421456B2 (en) 2007-10-09 2016-08-23 Nintendo Co., Ltd. Storage medium storing a load detecting program and load detecting apparatus
US10118064B1 (en) 2016-03-07 2018-11-06 William T. Cox Adjustable isometric exercise apparatus
US10188890B2 (en) 2013-12-26 2019-01-29 Icon Health & Fitness, Inc. Magnetic resistance mechanism in a cable machine
US10220259B2 (en) 2012-01-05 2019-03-05 Icon Health & Fitness, Inc. System and method for controlling an exercise device
US10226396B2 (en) 2014-06-20 2019-03-12 Icon Health & Fitness, Inc. Post workout massage device
US10272317B2 (en) 2016-03-18 2019-04-30 Icon Health & Fitness, Inc. Lighted pace feature in a treadmill
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US10433612B2 (en) 2014-03-10 2019-10-08 Icon Health & Fitness, Inc. Pressure sensor to quantify work
US10493349B2 (en) 2016-03-18 2019-12-03 Icon Health & Fitness, Inc. Display on exercise device
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Publication number Priority date Publication date Assignee Title
US4605221A (en) * 1982-03-22 1986-08-12 Agosta Nino D Exercise method and apparatus
US4607841A (en) * 1982-12-16 1986-08-26 Gala Jeffrey A Isometric exercise apparatus
US4848152A (en) * 1987-05-04 1989-07-18 Pratt Jr G Andrew Biofeedback lifting monitor
US4912638A (en) * 1987-05-04 1990-03-27 Pratt Jr G Andrew Biofeedback lifting monitor
US5050871A (en) * 1989-08-01 1991-09-24 D. Scott Douglas Energy absorbing exercising and training machine
USRE37132E1 (en) 1989-08-01 2001-04-10 D. Scott Douglas Energy absorbing exercising and training machine
WO1994003141A1 (en) * 1992-08-05 1994-02-17 Parrsboro Metal Fabricators Limited Stretching exercise machine
US5924965A (en) * 1995-06-22 1999-07-20 Vardy; Terence Cecil Method of exercising the human body
US8861091B2 (en) 1995-11-06 2014-10-14 Impulse Technology Ltd. System and method for tracking and assessing movement skills in multidimensional space
US8503086B2 (en) 1995-11-06 2013-08-06 Impulse Technology Ltd. System and method for tracking and assessing movement skills in multidimensional space
US20100302142A1 (en) * 1995-11-06 2010-12-02 French Barry J System and method for tracking and assessing movement skills in multidimensional space
US6616579B1 (en) 1999-06-14 2003-09-09 Sensorpad Systems, Inc. Apparatus for isometric exercise
US20030216232A1 (en) * 2002-05-17 2003-11-20 Charalabos Leftheriotis Exercise apparatus
US7044900B2 (en) 2002-05-17 2006-05-16 Charalabos Leftheriotis Exercise apparatus
US20050020415A1 (en) * 2003-07-22 2005-01-27 Tony Reno Isometric exercise equipment with portable feedback device
US20060264307A1 (en) * 2003-07-22 2006-11-23 Tony Reno Ideal Static Contraction Device
US7922620B2 (en) 2006-08-07 2011-04-12 Center Of Rotational Exercise, Inc. Concentric and eccentric exercising and training apparatus and method
US8187153B2 (en) 2006-08-07 2012-05-29 Center for Rotational Exercise, Inc. Concentric and eccentric exercising and training apparatus and method
US20080058164A1 (en) * 2006-08-07 2008-03-06 Douglas D S Concentric and Eccentric Exercising and Training Apparatus and Method
US20110118085A1 (en) * 2006-08-07 2011-05-19 Center for Rotational Exercise, Inc. Concentric and Eccentric Exercising and Training Apparatus and Method
US9289680B2 (en) 2007-04-20 2016-03-22 Nintendo Co., Ltd. Game controller, storage medium storing game program, and game apparatus
US8740705B2 (en) 2007-04-20 2014-06-03 Nintendo Co., Ltd. Game controller, storage medium storing game program, and game apparatus
US8574080B2 (en) 2007-04-20 2013-11-05 Nintendo Co., Ltd. Game controller, storage medium storing game program, and game apparatus
US20080261696A1 (en) * 2007-04-20 2008-10-23 Nintendo Co., Ltd. Game controller, storage medium storing game program, and game apparatus
US8100770B2 (en) 2007-04-20 2012-01-24 Nintendo Co., Ltd. Game controller, storage medium storing game program, and game apparatus
US20090093315A1 (en) * 2007-10-04 2009-04-09 Nintendo Co., Ltd. Storage medium storing load detection program, load detection apparatus, and load detection method
US8905844B2 (en) 2007-10-05 2014-12-09 Nintendo Co., Ltd. Storage medium storing load detecting program and load detecting apparatus
US20090094442A1 (en) * 2007-10-05 2009-04-09 Nintendo Co., Ltd Storage medium storing load detecting program and load detecting apparatus
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