JP2012192107A - Muscular force training device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a training device effectively training thigh muscles or gluteus maximus muscles without imposing a load on the body of a user.SOLUTION: The muscular force training device includes a bed 1, and rocking bars 2 each vertically rocking about a rock shaft 14 projecting from a side of the bed. Support bars 3 are each projectingly provided inward from a front end part 21 of the rocking bar 2, and each support bar is provided with a knee back abutment part 31. The user lies sprawled on one's back on the bed 1, and lifts a leg part while holding the knee back abutment part 31 by the knee back. Thereby, the user can effectively train the front sides and the rear sides of the thigh muscles without imposing the load on the body. An assistant of the training vertically rocks the rocking bar by use of an assistant bar 23 provided in each of the front end parts 21 and the rear end parts 22 of the rocking bars 2, so that the leg part of a person paralyzed in the lower body is naturally moved and can be trained.

Description

  The present invention relates to a strength training device that is used by a healthy person or a person with a lower body to train a thigh muscle and a greater ankle muscle.

  When the lower body is trained, it is considered important to strengthen the thigh muscles and greater gluteal muscles. Here, the positions of the thigh muscles and the greater aneurysm will be described with reference to FIG. The solid line indicates the right leg and the broken line indicates the left leg. As shown in FIG. 9, the thigh muscle D refers to the upper muscle from the knee, and the thigh muscle has the front quadriceps E and the back hamstring F. The large gluteal muscle G refers to the muscle from the hamstring F to the buttocks. Since the thigh muscle D is a part that performs a basic motion in which a human bends and stretches a leg, it is necessary to train the quadriceps E and hamstrings F firmly. In particular, hamstrings F are muscles that control the extension of the hip joint and the flexion of the knee joint. The greater ankle muscle F is an important part that connects the abdomen and the lower body.

  However, compared to the quadriceps E, hamstrings F are difficult to train and tend to lose strength. For this reason, it is easy to cause meat separation, etc., and it is difficult to cure completely when it becomes a cocoon. Moreover, since training must be performed separately to train the greater ankle muscle G, it is difficult to exercise both the thigh muscle D and the greater anterior muscle G in a well-balanced manner.

  Therefore, a leg press has been proposed as one of training apparatuses that can simultaneously train the thigh muscles and the greater ankle muscles (see Non-Patent Document 1, for example). This leg press is intended to reinforce the quadriceps, hamstrings, and greater gluteal muscles by bending and stretching the legs while supporting the foot plate with weights on the back of both feet. The leg press is also used for training beginners and inpatients who require rehabilitation of the lower body.

Wikipedia Legpress, Internet <URL: http://en.wikipedia.org/wiki>

  However, in the conventional leg press training described above, both legs are bent and stretched from the seated state, so that the hip joint cannot be bent deeply and hamstrings cannot be sufficiently trained. In other words, since hamstrings are interlocked with the extension of the hip joint, it is difficult for a leg press with a small movement of the hip joint to be loaded. In addition, it is difficult to place a load on the greater gluteal muscle when seated.

Therefore, it is necessary to move the hip joint greatly in order to train the thigh muscle and the greater ankle muscle. However, in order to perform such training, you need to open your legs widely back and forth or raise your thighs, so that not only will you lose your posture, but you will be subject to excessive force on your body and fatigue. This is difficult for beginners and hospitalized patients who need rehabilitation of the lower body.

  In addition, for example, a person with a lower body who has injured the spinal cord cannot move both legs by himself. Therefore, not only cannot a leg press or other training apparatus be used, but also it is very difficult to train the lower body. Therefore, in order for a person with a lower body to be able to train the thigh muscles or greater gluteal muscles, it is necessary to support the upper body so that the legs can be moved and forcibly move the legs.

  SUMMARY OF THE INVENTION Accordingly, a first object of the present invention is to provide a strength training device that can effectively train the thigh muscles and the greater gluteus muscles without putting an excessive burden on the user. A second object is to provide a strength training device that allows not only healthy subjects but also lower-body involuntaries to exercise their legs by moving their legs without difficulty.

  In order to solve the above problems, the strength training device according to the present invention lies on a bed, and lifts a limb by sandwiching a knee back support provided at the tip of a bar that swings up and down between the knee back .

  That is, the strength training apparatus according to the present invention is provided with a bed and a swing bar provided on the bed so as to be swingable. A rocking shaft projects in the horizontal direction on at least one of the left and right sides of the bed, and the rocking bar rocks in the vertical direction about the rocking shaft. A support bar protrudes in the horizontal direction at the tip of the swing bar, and the support bar is provided with a knee backing part. Then, the user lifts the limbs upward while holding the above-mentioned knee back support portion between the knee backs.

  Furthermore, the muscular strength of the limbs is biased only by training for gripping the knee backing and lifting the limbs upward. Therefore, the strength training apparatus according to the present invention includes a bed and a swing bar provided on the bed so as to be swingable. At least one of the left and right sides of the bed protrudes in the horizontal direction of the swing axis, and the swing bar swings up and down around the swing axis. A support bar protrudes in the horizontal direction at the tip of the swing bar, and the support bar is provided with a knee backing part. The center of gravity of the rocking bar is located behind the rocking shaft, and the user presses the limb down by placing the back of the knee against the knee back pad.

  Also, if the rocking bar is heavy, it is difficult to rock vertically. Therefore, it is desirable that an auxiliary bar protrudes from either the front end or the rear end of the swing bar, and that a weight can be freely attached to and detached from the auxiliary bar when used. Thus, for example, if the weight is removed, the rocking bar becomes light, and the assistant can easily rock in the vertical direction using the auxiliary bar.

By the way, during training, there is a risk that the knee back slips to the left or right due to sweat or the like and comes off the knee back. Therefore, it is desirable that the knee back support portion has a restricting portion that restricts left and right movement of the knee back. As a result, it is possible to prevent the back of the knee from slipping left and right and falling off from the back of the knee back.

  Further, if the positions of the swing bar and the swing shaft are fixed, for example, users with different heights and body shapes are difficult to train. Therefore, it is desirable that the muscle strength training apparatus includes a lateral slide mechanism that moves the swing bar in the left-right direction. The muscle strength training apparatus preferably includes a vertical slide mechanism for moving the swing bar in the vertical direction. Thus, the swing bar can be slid left and right or slid up and down according to the body shape of the user.

  Depending on the relationship between the position of the user's waist and the position of the swing shaft during training, it may be difficult to swing the limbs smoothly, or it may be difficult to apply a desired load to the thigh muscles or greater gluteal muscles. is there. Therefore, it is desirable that the rocking center of the rocking shaft is at a position where the rocking track of the knee-backing portion and the rocking track of the user's knee are substantially coincident. As a result, the above-described knee-backing portion substantially follows the movement of the above-mentioned knee-back, and can apply a certain load to the thigh muscles and greater gluteal muscles.

  Here, the “bed” corresponds to, for example, a frame type bed for assembling pipes and bars made of steel or aluminum alloy, or a box type bed for assembling a wooden board. The bed includes not only a flat portion that lies on the body but also a leg portion that supports the flat portion. Further, the “side portion” of the bed is not limited to a flat portion but also a leg portion.

The “swing bar” is not limited to the swinging shaft directly connected to the swinging shaft. For example, the swinging bar is inserted into and connected to an insertion jig that is swingably connected to the swinging shaft. This is also the case. In addition, the “oscillating shaft” is not limited to the one that protrudes horizontally from the side of the bed, but includes one that protrudes horizontally from a standing part that stands on the side of the bed, It is not limited to those fixed to the bed, but may be removable.

  The “knee backing part” means a part provided on at least a part of the support bar and having a large diameter so that it can be easily held between the knees. This knee backing portion is not limited to a cylindrical shape, and a pillow-like shape having a recessed center is also applicable. Further, the “back of the knee” includes not only the back of the knee but also the back of the knee including the calf and the thigh from the back of the knee.

  “The center of gravity of the rocking bar is located behind the rocking shaft” means, for example, not only when a weight is attached to the rear end of the rocking bar but also at the rear part of the rocking bar. This is also the case when making itself heavier than the front part.

  The “restricted portion” includes not only a pair of partitions provided on both end surfaces of the above-described knee backing portion, but also both end portions of the knee backing portion having a recessed center.

  The “lateral slide mechanism” is not limited to the swing bar connected to the swing shaft so as to be swingable and slidable in the left-right direction. In addition, it means that the swing bar is slidably connected in the left-right direction. In addition, the “vertical slide mechanism” is a slidably connecting detachable swing shaft and swing bar that can be slid in the vertical direction at the height of the side of the bed or the standing part standing on the side. Or it means what was connected.

  “The position at which the rocking trajectory of the knee lining part and the rocking trajectory of the user's knee are substantially coincided” means that the maximum deviation of the rocking trajectory is 30% of the rocking radius of the knee back. , Preferably 20%, more preferably 10% or less.

  The muscle strength training device according to the present invention allows a user lying on a bed to lift a limb by holding the knee back pad provided on the support bar at the tip of the swing bar with the back of the knee. Can effectively train the thigh muscles and greater gluteal muscles. That is, by lifting the limbs, a load is applied to the quadriceps muscles on the front side of the thigh muscles, and at the same time, the hamstrings and the heels on the back side of the thigh muscles are lifted while holding the knee back padding portion between them. The muscles can also be loaded. Furthermore, since the user can perform training in the supine state, the limbs can be lifted in an arc shape, the hip joint can be moved greatly and bent deeply, and the thigh muscles and lordosis can be effectively prevented without overloading the body. I can train my muscles. If the swing bar is provided on both sides of the bed, the user can train both limbs in a balanced manner.

  Furthermore, the center of gravity of the rocking bar is located behind the rocking axis, and the user places the knee back on the knee back pad and pushes the limb down, so that the user's thigh muscle and greater calf muscle are You can train more effectively. That is, when the limb is pushed down, hamstrings are particularly stimulated, and so-called “leg curl training” can be performed.

  In addition, an auxiliary bar protrudes from either the front end or the rear end of the swing bar, and a weight can be freely attached to or detached from the auxiliary bar, thereby widening the width of the user layer using this strength training device. Can do. For example, an advanced training person with strong muscle strength can be used if the weight is increased, and a beginner training person with weak muscle strength can be used if the weight is reduced. Also, if the weight is removed and the assistant uses the above-mentioned auxiliary bar to swing the swing bar up and down, the lower body can move the limbs without imposing a burden on the body, and the thigh muscles and greater gluteal muscles are effective. Can be trained.

  In addition, the knee-back part has a limiting part that restricts the movement of the back of the knee to the left and right, so that even if the rocking bar is swung violently, the back of the knee does not fall off from side to side, and the user can train with confidence You can continue.

Furthermore, many users use this strength training device regardless of their height or body shape by a horizontal slide mechanism that moves the rocking bar in the horizontal direction or a vertical slide mechanism that moves the rocking bar in the vertical direction. be able to. That is, regardless of gender and age, most healthy persons and lower-body incapacitated persons can effectively train the thigh muscles and greater gluteal muscles using this strength training apparatus.

  The center of swinging of the swinging shaft is positioned so that the swinging trajectory of the knee back pad and the swinging trajectory of the user's knee are approximately the same, so that the limbs can be moved ideally for training. Can do. That is, the user can effectively train the thigh muscles and greater gluteal muscles with a certain load without forcibly shifting the position of the body or breaking the trajectory of the back of the knee.

It is a perspective view of a muscular strength training device. It is a top view of a muscular strength training device. It is a front view of a muscular strength training device. It is a right view of a muscular strength training device. It is a partial expanded sectional view of a muscular strength training device. It is a conceptual diagram which shows the rocking | fluctuation track | orbit of a knee back and a knee back pad part. It is a figure which shows use of a muscular strength training apparatus. It is a figure which shows another use of a muscular strength training apparatus. It is a figure which shows the position of a thigh muscle and a greater gluteus.

  Hereinafter, with reference to FIGS. 1-8, the structure and effect of the strength training apparatus according to the present invention will be described. Therefore, first, the overall configuration of the strength training apparatus will be described with reference to FIGS. In addition, since the strength training apparatus shown in figure is comprised symmetrically, only the right side part is demonstrated and description of the left side part is abbreviate | omitted.

  As shown in FIG. 1, the strength training apparatus according to the present invention includes a bed 1 on which the user lies on his back and a swing bar 2 provided on the bed so as to be swingable.

  The bed 1 includes a pedestal 11 on which a user lies down and a support portion 12 that supports the pedestal. As shown in FIG. 3, the support portion 12 includes a pair of front and rear leg frames 12 a and 12 a that support the pedestal 11, and a base frame 12 b that is provided at the lower end of the leg frame and is orthogonal. On the side frame 12b-1 of the base frame 12b corresponding to the side of the bed 1, a standing portion 13 is erected, and the swing shaft 14 protrudes in the horizontal direction outward from the upper end of the standing portion. Has been established.

  The bed 1 may be, for example, a box-type bed in which wooden boards are assembled, and the swing shaft may protrude from the side surface of the box-type bed. A handrail 15 is erected on the base frame 12 b of the support portion 12 at a height that can be grasped by a user who lies on the base 11. A caster 16 for moving the strength training apparatus is provided on the front side of the pair of front and rear leg frames 12a, 12a. As shown in FIG. 4, the side frame 12 b-1 and the standing portion 13 are provided with a downward stopper 17 and an upward stopper 18 that suppress downward and upward swing of the swing bar 2, respectively.

  The swing bar 2 is a square member having a predetermined length, and swings in the vertical direction around the swing shaft 14 protruding in the horizontal direction from the upper end of the standing portion 13 as shown in FIG. . As an example of a detailed structure, the swing bar 2 is connected to the swing shaft 14 via an insertion jig 21, and a ball bearing is provided on the insertion jig, and the swing shaft 14 is attached to the ball bearing. By piercing and rotating, the swing bar 2 swings up and down.

  The front end 22 or the rear end 23 of the swing bar 2 may be straight. Moreover, the front-end | tip part 22 of the rocking | swiveling bar 2 is not restricted to the front side rather than the front-end part 11a of the bed 1, The back side may be sufficient.

  The support bar 3 protrudes in the horizontal direction toward the inside of the distal end portion 22 of the swing bar 2 bent at a right angle. A knee backing part 31 made of a cushion material thicker than the diameter of the support bar is wound around the tip of the support bar.

  The knee backing 31 may be wound not only on the tip of the support bar 3 but also on the entire support bar 3. In addition, a band for fixing the limb may be provided on the knee backing part.

Therefore, when the user lying on the bed 1 grips the knee back pad 31 with the back of the knee and lifts the limb upward, the swing bar 2 swings along with the movement of the limb, so Not only the front quadriceps muscles but also the back hamstrings and greater gluteal muscles can be loaded to strengthen the muscle strength.

  When the back portion of the swing bar 2 is made heavy with the swing shaft 14 as the center, for example, the center of gravity of the swing bar is located on the rear side. As a result, the swinging bar is tilted and the support bar 3 and the knee backing part 31 are raised.

Therefore, the user can perform so-called “leg curl training” because a load is applied to the hamstrings on the back side of the thigh muscles when the knee back is pressed down against the knee back pad 31 and the limb is pushed downward.

  In addition, columnar auxiliary bars 24 and 24 protrude outwardly from both the front end portion 22 and the rear end portion 23 of the swing bar 2. A weight can be freely attached to and detached from these auxiliary bars in use.

Therefore, for example, if a weight is attached to the front side of the auxiliary bars 24, 24, it is possible to increase the load of gripping the knee back pad 31 with the back of the knee and lifting the limb upward. On the other hand, if a weight is attached to the back side of the auxiliary bars 24, 24, it is possible to increase the load of pushing the limb downward by placing the back of the knee against the knee back pad 31. Further, since the weight is removed and the training assistant swings the swinging bar 2 up and down using the assisting bars 24, 24, the limbs of the lower body incapacitating person can be forcibly moved. It is possible to train the thigh muscles and greater gluteal muscles of involuntary persons.

  Further, the knee back pad 31 has restriction parts 32 and 32 for restricting the right and left movements of the knee pad on both sides of the knee pad 31.

In addition, when the knee-backing part 31 is a pillow-shaped thing with which the center part was dented, it is good also considering the both ends of this knee-backing part as a restriction | limiting part.

Therefore, by the limiting portions 32, 32, even if the swing bar 2 is repeatedly moved up and down, the knee back slides to the left and right, and the limb does not fall off from the knee back pad portion 31, so that the training can be continued with peace of mind.

  Here, the horizontal slide mechanism and the vertical slide mechanism of the swing bar 2 will be described with reference to FIG. As shown in FIG. 5, in the horizontal slide mechanism, when the stopper 21b of the insertion jig 21 is first pulled out, the swing bar 2 slides in the left-right direction. Then, by inserting the stopper at a position where the five openings 25 provided on the upper surface of the swing bar 2 and the one opening 21a provided on the upper surface of the insertion jig 21 are respectively matched, A desired position can be set. In the vertical slide mechanism, when the swing shaft 14 is first pulled out of the insertion jig 21 of the swing bar 2, the swing bar separates from the standing portion 13 and slides up and down. And the rocking | swiveling bar 2 can be set to desired height by piercing the rocking | fluctuation shaft 14 in the other opening 13a provided in the standing part 13 from the back side of this standing part.

The swing bar 2 can be fixed by tightening the screws 21c and 21c from the outside. A rubber cushion 26 is laid between the swing bar 2 and the insertion jig 21, and an opening is provided at the same position as the opening 25.

Therefore, if this strength training device does not fit the user's body shape, etc., this user or this user's assistant trains the position of the swing bar using the horizontal slide mechanism or the vertical slide mechanism, respectively. It can be adjusted for ease.

  The relationship between the position of the user's waist and the position of the swing shaft in training will be described with reference to FIG. In addition, the dotted line in a figure shows the rocking | fluctuation track | orbit of the knee back N, and a dashed-dotted line shows the rocking | fluctuation track | orbit of the knee back pad part 31, respectively. As shown in FIG. 6A, when the user's waist B and the swing shaft 14 are in the same position, when the user lifts or pushes down the limb L by training, In order to follow the movement of the back N, the swinging trajectory of the back of the knee coincides with the swinging trajectory of the knee backing part.

Therefore, the limb can draw a desired swinging trajectory, and can exercise the thigh muscle and the greater anterior muscle extremely effectively without imposing a burden on the user's body.

  Further, as shown in FIG. 6 (B), when the swinging shaft 14 is slightly below the user's waist B and on the rear side, when the user lifts or pushes the limb L, the knee backing portion Since the swing trajectory 31 is slightly lower and follows the swing trajectory of the knee sole N, the swing trajectory of the knee back and the swing trajectory of the knee back abutting portion substantially coincide. As shown in FIG. 6C, when the swing shaft 14 is slightly above the waist B of the user and on the front side, when the user lifts or pushes the limb L, the knee backing portion 31 Is slightly higher than the swing track of the knee sole N, so that the swing swing track of the knee sole and the swing track of the knee pad portion substantially coincide.

Therefore, by slightly shifting the swinging trajectory of the knee backing part 31 and the swinging trajectory of the knee back N, not only an excessive load is imposed on the user, but also the load on the thigh muscles and the greater ankle muscles is reduced. You can train or train with more load. For example, when the swinging trajectory of the knee backing part 31 is lower than the swinging trajectory of the knee back N, it is easy to apply a force to the knee backing part and easily push down the limb L, so that the training load can be reduced. On the other hand, when the swinging trajectory of the knee backing part 31 is higher than the swinging trajectory of the knee back N, it is difficult to apply force to the knee backing part and it is difficult to push down the limb L, so that the training load can be increased.

  Next, with reference to FIG. 7 and FIG. 8, the operation of training the thigh muscle and the greater anterior muscle using this strength training apparatus will be described. The parts and parts equivalent to those shown in FIGS. 1 to 4 are numbered by adding 100 uniformly in FIGS. 1 to 4 for easy reference.

  Next, with reference to FIG. 7, the operation when lifting the limb upward while holding the knee back support portion with the knee back will be described. As shown in FIG. 7A, the user lies on his / her back on the bed 101, grasps the knee back portion 131 provided on the support bar at the tip of the swinging bar 102 with the limb L, and lifts it upward. . Then, as shown in FIG. 7B, the knee back pad 131 substantially follows the arcuate movement of the knee sole, and the swing bar 102 swings upward about the swing axis. Therefore, by applying a load to the quadriceps muscle on the front side of the thigh muscle, it is also possible to apply a load to the hamstrings and the greater ankle muscle on the back side of the thigh muscle by lifting while holding the knee lining part on the back of the knee. it can. Furthermore, since the user can perform training in the supine state, the limbs can be lifted in an arc shape, the hip joint can be moved greatly and bent deeply, and the thigh muscles and lordosis can be effectively prevented without overloading the body. I can train my muscles.

  Moreover, the operation | movement at the time of pushing down a limb part downward is demonstrated using FIG. As shown in FIG. 8 (A), the user lies on his back on the bed 201 and presses the knee back pad 231 provided on the support bar at the tip of the swing bar 202 against the knee back of the limb L. . A weight W is added to the rear end of the swing bar so that the center of gravity of the swing bar 202 is located behind the swing axis. Then, as shown in FIG. 8 (B), the knee backing part 231 substantially follows the arcuate movement of the knee sole, and particularly the hamstrings of the limb L are stimulated, and training is effectively performed by so-called “leg curl training”. It can be performed.

  The muscle strength training apparatus in the present invention is not limited to a fitness club for healthy young people and young people and a training facility for lower-body incapacitated persons, but also physical therapy for providing rehabilitation and occupational therapy for providing rehabilitation support for the elderly It can be widely used in industries related to nursing care and student education.

Sleeper 1, 101, 201
Pedestal 11
Support part 12
Oscillating shaft 14
Swing bar 2, 102, 202
Tip 22
Rear end 23
Auxiliary bar 24
Support bar 3
Knee backing part 31, 131, 231
Restriction part 32

Claims (7)

A bed and a swing bar provided on the bed so as to be swingable;
At least one of the left and right sides of the bed has a swing shaft that protrudes in the horizontal direction,
The swing bar swings up and down around the swing shaft,
At the tip of the swing bar, a support bar protrudes inward in the horizontal direction,
The support bar is provided with a knee backing part,
A muscle strength training device, wherein the user lifts the limbs upward while holding the knee back support portion between the knee backs. A bed and a swing bar provided on the bed so as to be swingable;
At least one of the left and right sides of the bed has a swing shaft that protrudes in the horizontal direction,
The swing bar swings up and down around the swing shaft,
At the tip of the swing bar, a support bar protrudes inward in the horizontal direction,
The support bar is provided with a knee backing part,
The center of gravity of the swing bar is located behind the swing shaft,
A muscle strength training device, wherein the user presses the limb downward while placing the back of the knee against the above-mentioned knee support. An auxiliary bar protrudes from either the front end or the rear end of the swing bar,
The strength training apparatus according to claim 1, wherein a weight can be freely attached to and detached from the auxiliary bar when used. The muscular strength training apparatus according to any one of claims 1 to 3, wherein the knee lining part includes a restricting part that restricts movement of the knee lining to the left and right. The muscle strength training apparatus according to claim 1, further comprising a lateral slide mechanism that moves the swing bar in a left-right direction. The muscle strength training apparatus according to any one of claims 1 to 5, further comprising a vertical slide mechanism that moves the swing bar in a vertical direction. 5. The swing center of the swing shaft is located at a position where the swing track of the knee lining part and the swing track of the user's knee are substantially coincident with each other. Strength training device.

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