JP5160026B2 - Muscle training apparatus and muscle training method using thixotropy - Google Patents

Description

The present invention relates to a muscle training apparatus and a muscle training method using thixotropy.

  Recently, strength training is recommended in the fields of physical education guidance, fitness, rehabilitation, and elderly care prevention. In particular, resistance training, which is weight training by load loading, is attracting attention.

  Such a muscular strength training method is a method in which a muscle is contracted by lifting a weight with a hand or a foot, for example. In this method, the hand or foot muscles continue to shorten while lifting the weight (isotonic contraction: isotonic contraction).

  The muscle is made up of many bundles of muscle fibers, and these muscle fibers are further composed of two types of myofibrils, actin and myosin, and both of them slide to cause muscle contraction.

  The above-mentioned tissue that connects and pulls both myofibrils is a cross bridge. The cross bridge shrinks when it becomes hard, and relaxes when it is soft. The strength and softness of the muscles depend largely on the state of this cross bridge.

  Conventionally, many muscle training methods using the above-described isotonic contraction of muscle have been performed. This muscle training method means an exercise in which muscle contraction (joint movement) is performed against a certain resistance (load). That is, it is a training method in which the length of the muscle is changed by arbitrarily repeating the change of the joint angle.

  For example, a bench press, a fly exercise, and the like performed by bending a joint and lifting a weight using a dedicated training machine are representative. In such a training method, the muscles are contracted by lifting the weights. In this case, the muscles continue to contract while the weights are lifted, and when the contraction is stopped, the muscles become stiff for a while and become difficult to relax. That is, the muscle training method using the isotonic contraction of the muscle cannot always be expected to have a sufficient effect from the viewpoint of enhancing the muscle and improving the flexibility.

Patent Document 1 proposes a strength training device in which a trainee sitting on a seat grasps an arm pad with both hands and rotates the arm pad toward the face side to train the muscles of the chest and arms. .
However, the muscle strength training apparatus of Patent Document 1 is also mainly intended for strength training by isotonic contraction of muscles.
JP 09-294827 A

  The problem to be solved is to use isometric contraction instead of isotonic contraction of muscle, and there is no suitable training method to increase muscle and improve flexibility Is a point.

In the muscle training method using the thixotropy of the present invention, a trainee is seated with the quadriceps stretched on the seat portion, and the upper end portion is supported by a pair of support arms projecting forward from both sides of the seat portion in the seat portion. It is pivotally supported and lockable so as to be pivotable, and the pivotal support portion of the pair of pivot arms arranged on the pair of support arms is a rotation that regulates the pivot angle of the pair of pivot arms. While the movement restricting member is arranged , a lifting force is exerted in a locked state on the footrest portion attached to the lower end portion of the rotating arm, and the quadriceps muscle is isometrically contracted to generate a thixotropy. The main features are that the muscle is strengthened and the flexibility is improved, and the detection signal for calculating the muscle strength value of the trainee is output by a pressure sensor built in the footrest.

According to the first aspect of the present invention, the trainee is seated on the seat portion with the quadriceps stretched, and the lower foot portion is brought into contact with the locked footrest portion in this state to give the lifting force. By doing so, the quadriceps muscles are isometrically contracted to create a thixotropy, which can enhance the quadriceps muscles and improve flexibility, and is built into the footrest The detected signal of the pressure sensor can also be used for calculating the muscular strength value of the trainee, and further, the pair of rotating arms provided on the shaft support portions of the pair of rotating arms provided on the pair of support arms. It is possible to provide a muscle training device using thixotropy that can also regulate the pivot angle of the pivot arm by the pivot regulating member that regulates the pivot angle.

According to the second aspect of the present invention, a lifting force is exerted on the footrest portion by the lower foot portion in a state where the quadriceps are stretched, and the quadriceps muscle is isometrically contracted to generate a thixotropy. Therefore, it is possible to enhance the quadriceps muscle, improve flexibility, and use the detection signal of the pressure sensor built in the footrest part for calculating the muscle strength value of the trainee, Further, the rotation angle of the rotation arm is regulated by a rotation restriction member that regulates the rotation angle of the pair of rotation arms provided on the shaft support portion of the pair of rotation arms arranged on the pair of support arms. It is also possible to provide a muscle training method by using thixotropy.

According to the invention described in claim 3 , the trainee is seated on the seat portion, and in this state, the arms are opened to the left and right and the chest or arm muscles are stretched to hold the gripped portion locked by both hands. By applying an inversion force to the gripping part, the muscles of the chest or arm can be isometrically contracted to generate thixotropy, thereby enhancing the muscles of the chest or arm and improving flexibility. It is also possible to use the detection signal of the pressure sensor built in the gripping part for calculation of the muscular strength value of the trainee, and further, the pair of gripping parts are provided by the pair of shaft support parts provided on the seat part. To provide a muscle training device using thixotropy that can adjust the opening angle of a pair of gripping portions because it employs a structure that is pivotally supported and lockable. Kill.

According to the invention described in claim 4, the arms or arms are opened to the left and right and the muscles of the chest or arms are stretched to exert an inversion force on the gripping portions gripped by both hands, and the chest or arms muscles are Because it generates isthrotropy by isometric contraction, it is possible to enhance the muscles and improve flexibility, and calculate the muscle strength value of the trainee using the detection signal of the pressure sensor built in the grip In addition, since the pair of gripping portions are pivotally supported by the pair of shaft support portions provided on the seat portion and can be locked, a pair of gripping portions is adopted. It is possible to provide a muscle training method by thixotropy that can also adjust the opening angle of the muscle.

The purpose of the present invention is to provide a training method suitable for the purpose of providing a suitable training method for strengthening muscles and improving flexibility by utilizing isometric contraction rather than isotonic contraction of muscle. Seated with the quadriceps extended, and supported by a pair of support arms projecting forward from both sides of the seat in the seat portion, and pivotally supported in a lockable manner. A pivot restricting member that regulates the pivot angle of the pair of pivot arms is disposed on the shaft support portion of the pair of pivot arms disposed on the pair of support arms, and is attached to the lower end of the pivot arm. The lifting force is applied in a locked state to the toefoot part, and the quadriceps muscles are isometrically contracted to generate thixotropy, strengthening the quadriceps muscles and improving flexibility, and built in the footrest part Pressure sensor Ri is realized by the configuration so as to output a detection signal for strength calculation of the trainee.

Examples of the present invention will be described in detail below.
The inventors of the present application have found that thixotropy is also generated in the muscle by research on the elongation and contraction of the muscle.

  Here, thixotropy is a physicochemical change (thixotropy) that changes to a solid when a mechanical stimulus is applied to the liquid, and it was discovered that this physicochemical change occurs in muscles. In other words, if the muscle is stretched (stretched) and contracted strongly without changing its length (isometric contraction), a thixotropy is generated in the muscle, and the muscle becomes soft and flexible for a while after stopping the contraction. Increase. Furthermore, the muscle itself is strengthened by repeating isometric contraction.

The muscle training apparatus and the muscle training method according to the embodiment of the present invention utilize such a thixotropy and will be specifically described below.

  FIG. 1 and FIG. 2 show a muscle training device 1 using a thixotropy for enhancing the quadriceps muscles and improving flexibility of a trainee M. A base 3 installed on a floor surface 2 is shown. A seat portion 4 having a seat portion 4a and a backrest portion 4b on which a trainer attached to the base 3 sits, and a pair of support arms 5 and 5 projecting forward from both sides of the seat portion 4a in the seat portion 4 And a pair of pivot arms 6 and 6 pivotally supported by a pair of support arms 5 and 5 so that the upper ends can be pivoted, and attached to the lower ends of the pair of pivot arms 6 and 6, respectively. The lower foot portion of the trainee M, for example, the foot pads 7 and 7 which are the footrest portions for contacting the ankles, and the lifting force by the ankle of the trainee M which is respectively disposed inside the foot pads 7 and 7 A pair of pressure sensors 8 and 8 to detect It is.

  A rotation restricting member 9 for restricting the rotation angle of the pair of rotation arms 6, 6 is provided at the shaft support portion of the pair of rotation arms 6, 6 in the pair of support arms 5, 5.

  Further, although not described in detail on both sides of the seat portion 4, a pair of weight suspension frames 10 and 10 are disposed, and the weight suspension frames 10 and 10 allow the pair of rotation arms 6 and 6 to rotate. The weight 11 that can be changed in weight is attached to the muscles of the trainee M who can move up and down in conjunction with each other and can change the weight.

  Next, a muscle training method for the quadriceps of the trainee M by the thixotropy using the muscle training device 1 described above will be described.

  As shown in FIG. 1, when a trainee M starts muscle training, the pair of rotating arms 6 and 6 is suspended vertically downward with respect to the pair of support arms 5 and 5. The moving arms 6 and 6 are locked.

  In this state, the trainee M sits on the seat portion 4a of the seat portion 4, bends the joints of both knees and extends the quadriceps, and abuts both ankle portions on the foot pads 7 and 7, respectively.

  Next, the trainee M performs an operation of lifting the foot pads 7 and 7 that are locked by both ankle portions in the direction of arrow a.

As a result, the quadriceps muscle of the trainee M is in an isometric contraction state without changing the stretched length, so that the thixotropy is generated inside the quadriceps muscle and the foot pads 7 and 7 are moved to the arrow a. After stopping the lifting in the direction, the quadriceps muscle becomes soft and its flexibility increases.
Further, the muscular strength of the quadriceps can be increased by optionally repeating the operation of lifting the foot pads 7, 7 locked in the direction of the arrow a by the portions of both ankles as described above.

Next, another example of the muscle training method for the quadriceps of the trainee M using the above-described muscle training device 1 will be described with reference to FIG.
In this muscle training method, as shown in FIG. 3, when a trainee M starts muscle training, the pair of rotating arms 6, 6 are placed in a horizontal state with respect to the pair of support arms 5, 5. The pivot arms 6 and 6 are locked.

In this state, the trainee M sits on the seat portion 4a of the seat portion 4, in a compressed state the straight stretch quadriceps without bending the joints of the legs, footwear portions of both feet, for example, a calf portion the Put on the foot pads 7,7.

  Next, the trainee M performs an operation of pushing down the foot pads 7 and 7 that are locked by the portions of both ankles in the direction of the arrow b.

Thereby, after stopping the operation | movement which pushes down the training person's M foot pads 7 and 7 to the arrow b direction , quadriceps muscle becomes soft and the flexibility increases.
Further, the muscular strength of the quadriceps can be increased by arbitrarily repeating the above-described operation of pushing down the foot pads 7 and 7 that are locked by both ankle portions in the direction of the arrow b.

  In the above-described muscle training device 1, the pressure sensors 8 and 8 detect the lifting force or the pressing force of the trainee M on the foot pads 7 and 7, and the muscle strength value calculation means (not shown) calculates based on this detection signal. And it is also possible to comprise so that the muscular strength value of the trainee M may be calculated | required.

  The above-described muscle training method using the muscle training device 1 is preferably performed, for example, at a strength of about 40 to 80% of the maximum strength, with 15 to 20 seconds as one set, and 5 sets at a time, about 3 times a week. Can be mentioned.

  Next, a muscle training device 21 for performing muscle training by thixotropy of the chest or arm of the trainee M will be described with reference to FIGS.

  A muscle training device 21 shown in FIGS. 4 and 5 includes a base 23 installed on the floor 2, and a seat portion 24 having a seat portion 24 a and a backrest portion 24 b on which a trainee attached to the base 23 sits. The base end side can be rotated and locked by a pair of shaft support portions 25, 25 provided on both sides of the backrest portion 24b, and the gripping portions are respectively provided on the projecting end sides bent vertically upward. It has a pair of internal arms 27, 27 provided with a hand pad 26, 26.

  A pair of pressure sensors 28 and 28 for detecting the inward force of the trainee M are provided inside the hand pads 26 and 26, respectively.

  Further, although not described in detail on both sides of the seat portion 24, a pair of weight suspension frames 30 and 30 are disposed, and the weight suspension frames 30 and 30 allow the arrows c of the pair of inward use arms 27 and 27, The weight 31 that can be changed in weight to lift and lower the weight in conjunction with the adduction in the c ′ direction and applies a weight load for training to the muscle of the trainee M is suspended and supported.

Next, a muscle training method for various muscles of the chest or arm by the thixotropy of the trainee M using the above-described muscle training device 21 will be described.
Examples of various muscles of the chest or arm include the great pectoral muscle, deltoid muscle, latissimus dorsi and biceps.

  When the trainee M starts the muscle training of the greater pectoral muscle, for example, with the above-described muscle training device 21, the pair of adduction arms 27 and 27 are locked in a state where they are opened sideways as shown in FIG.

  In this state, the trainee M sits on the seat portion 4a of the seat portion 4, opens both arms to the side, extends the pectoralis major muscle, and holds the hand pads 26, 26 with both hands.

  Next, the trainee M performs an operation of causing the pair of adduction arms 27 and 27 in the locked state while holding the hand pads 26 and 26 to add in the directions of arrows c and c ′.

  As a result, the great pectoral muscle of the trainee M is stretched and is in an isometric contraction state without changing its length, and a thixotropy is generated inside the pectoral muscle so that the pair of adduction arms 27 and 27 are attached. The great pectoral muscles become soft after the movement to add in the directions of the arrows c and c ′ is stopped, and the flexibility increases. Further, it is possible to increase the muscle strength of the greater pectoral muscle by optionally repeating the above-described inversion operation.

  In the muscle training device 21 described above, the pressure sensors 28 and 28 detect the inward force of the arm of the trainee M, and based on this detection signal, the muscle strength value calculating means (not shown) calculates the inward force. It is also possible to obtain a muscular strength value.

  Further, the muscle training method of the pectoralis muscle using the muscle training device 21 described above is, for example, a set of 15 to 20 seconds with a strength of about 40 to 80% of the maximum muscle strength, as described above, once. Performing 5 sets 3 times a week can be cited as a suitable example.

The muscle training apparatus and method according to the present invention are not limited to the case of performing muscle training by thixotropy of the quadriceps and pectoralis muscles of the trainee, but also the trainee's triangular muscle, latissimus dorsi, biceps, It is possible to respond widely to muscle training by thixotropy for various muscles in the chest, back and arms.

It is a schematic side view which shows the usage example of the muscle training apparatus for quadriceps muscles based on the Example of this invention. 1 is a schematic front view of a muscle training device for quadriceps muscles according to an embodiment of the present invention. It is a schematic side view which shows the other usage example of the muscle training apparatus for quadriceps muscles based on the Example of this invention. 1 is a schematic side view showing a muscle training device for a chest or arm according to an embodiment of the present invention. 1 is a schematic front view showing a muscle training device for a chest or arm according to an embodiment of the present invention.

M Trainer 1 Muscle training device 2 Floor 3 Base 4 Seat 4a Seat 4b Backrest 5 Support arm 6 Rotating arm 7 Foot pad 8 Pressure sensor 9 Rotation restricting member 10 Weight suspension frame 11 Weight 21 Muscle training Device 23 Base 24 Seat 24a Seat 24b Backrest 25 Shaft Support 26 Hand Pad 27 Addition Arm 28 Pressure Sensor 30 Weight Suspension Frame 31 Weight

Claims (4)

A seat where the trainee can sit with the quadriceps stretched,
A pair of support arms projecting forward from both sides of the seat portion in the seat portion;
A pair of pivot arms pivotally supported by the pair of support arms so that the upper end can be pivoted and locked;
A rotation restricting member for restricting a rotation angle of the pair of rotation arms provided in a shaft support portion of the pair of rotation arms in the pair of support arms ;
A footrest portion that is attached to the lower end portions of the pair of rotating arms and that allows a lifter to apply a lifting force by bringing a lower foot portion into contact with the seat while sitting on the seat portion,
A pressure sensor for detecting a lifting force built in the footrest part;
Have
The trainee exerts a lifting force on the locked abutment portion together with the pair of rotating arms with the lower leg portion in a state where the quadriceps are extended , and the quadriceps muscle is isometrically contracted to generate a thixotropy. In addition to enhancing the quadriceps muscles and improving flexibility, the pressure sensor built in the footrest part is configured to output a detection signal for calculating the muscle strength value of the trainee , and by the rotation restricting member A muscle training device using thixotropy, which enables muscle training in a state where the bending angle of the knee of the trainee is changed by regulating the turning angle of the pair of turning arms . A muscle training method using thixotropy using the muscle training device according to claim 1,
The trainer sits on the seat with the quadriceps stretched,
The upper end of the seat portion is pivotally supported by the pair of support arms projecting forward from both sides of the seat portion, and is pivotally supported so as to be lockable. Lifting force is applied to the footrest part including the pressure sensor attached to the lower end part of the pair of pivoting arms whose rotational angle is regulated by locking the footrest part together with the pair of pivoting arms. Giving,
The isometric contraction of the quadriceps muscles to generate thixotropy to enhance the quadriceps muscles and improve flexibility, and the detection signal for calculating the muscle strength value of the trainee by the pressure sensor built in the footrest And the muscle training is performed in a state where the bending angle of the knee of the trainee is changed by regulating the turning angle of the pair of turning arms by the turning restricting member. By muscle training method. A seat portion having a seat portion and a backrest portion on which a trainee can be seated;
A pair of pivots provided on both sides of the backrest,
The base end side is pivotally supported by the pair of pivot support parts and can be locked, and both arms are opened to the left and right while the trainee is seated on the seat part. A pair of arm for internal rotation equipped with a gripping portion on the protruding end side that can be gripped with both hands in a stretched state,
A pressure sensor for detecting an internal rotation force incorporated in the gripping portion;
Have
A training person exerts an inversion force on the gripping part of a pair of adduction arms that are locked in a state where the muscles of the chest or arms are stretched, and the muscles of the chest or arms are isometrically contracted to generate a thixotropy A muscle training apparatus using thixotropy is characterized in that a detection signal for calculating a muscle strength value of a trainee is output by a pressure sensor built in the grip portion . A muscle training method using thixotropy using the muscle training device according to claim 3,
A trainee is seated on a seat having the seat and backrest,
Left and right arms with respect to a gripping part with a built-in pressure sensor provided on the protruding end side of the pair of inward-turning arms whose base end side is locked by the pair of shaft support parts provided on both sides of the backrest part Exerts adductive force with the chest or arm muscles open and
The muscles of the chest or arm are contracted isometrically to generate a thixotropy, strengthening the muscles and improving flexibility, and a detection signal for calculating the muscle strength value of the trainee by a pressure sensor built in the grip A muscle training method using thixotropy, characterized by output .

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