JP2021159210A - Trunk exercise device - Google Patents

Trunk exercise device Download PDF

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JP2021159210A
JP2021159210A JP2020061793A JP2020061793A JP2021159210A JP 2021159210 A JP2021159210 A JP 2021159210A JP 2020061793 A JP2020061793 A JP 2020061793A JP 2020061793 A JP2020061793 A JP 2020061793A JP 2021159210 A JP2021159210 A JP 2021159210A
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trunk
external force
user
height
state
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JP7460070B2 (en
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典郎 木下
Norio Kinoshita
雄一 福田
Yuichi Fukuda
彰悟 坪井
Akinori Tsuboi
克俊 田所
Katsutoshi Tadokoro
勇人 笹沼
Yuto Sasanuma
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Minato Medical Science Co Ltd
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Minato Medical Science Co Ltd
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Abstract

【課題】外力を効率良く、利用者に作用させ、体幹を効果的に揺動させることができる体幹運動装置を提供する。
【解決手段】利用者を仰臥位で保持する仰臥台と、利用者の左右の脚を保持する脚載台と、左右の脚を交互に動かす外力を発生する駆動部と、脚載部の高さを調整する昇降部と、利用者への外力の作用状態を検出する外力作用状態検出部を備え、昇降部は、利用者への外力の作用状態に応じて、脚載台の高さを調整してなるものである。
【選択図】図１PROBLEM TO BE SOLVED: To provide a trunk exercise device capable of efficiently applying an external force to a user and effectively swinging the trunk.
SOLUTION: A supine stand for holding a user in a supine position, a footrest for holding the left and right legs of the user, a drive unit for generating an external force for alternately moving the left and right legs, and a height of the footrest. It is equipped with an elevating part that adjusts the stress and an external force action state detection part that detects the action state of the external force on the user. It is made by adjusting.
[Selection diagram] Fig. 1

Description

本発明は、体幹運動装置に関するものである。 The present invention relates to a trunk exercise device.

従来の体幹運動装置の一例として、特許文献１の体幹運動装置がある。特許文献１の体幹運動装置について、図７を参照して説明する。利用者が左右の脚を伸ばした状態で脚台１２に載せ、外力発生部１３の外力（Ｆ、Ｆ‘）により、左右の脚台１２を交互に動かしている。また、外力（Ｆ、Ｆ‘）は、利用者の脚を介して骨盤に伝わり、体幹に作用している。 As an example of the conventional trunk exercise device, there is the trunk exercise device of Patent Document 1. The trunk exercise device of Patent Document 1 will be described with reference to FIG. 7. The user puts the left and right legs on the pedestal 12 with the left and right legs extended, and the left and right pedestals 12 are alternately moved by the external force (F, F') of the external force generating unit 13. In addition, the external force (F, F') is transmitted to the pelvis via the user's legs and acts on the trunk.

特開２００９−２９７５１０号公報JP-A-2009-297510

しかしながら、特許文献１の体幹運動装置は、体幹運動中、外力発生部１３の床面からの高さが一定であるため、外力（Ｆ、Ｆ‘）による脚の押し込み角度が一定であった。そのため、体幹運動中における利用者の状態変化、例えば、筋緊張や筋肉の柔軟性の変化による、利用者への外力（Ｆ、Ｆ‘）の作用状態の変化に対応できず、体幹を効果的に揺動させることができない場合があった。 However, in the trunk exercise device of Patent Document 1, since the height of the external force generating portion 13 from the floor surface is constant during the trunk exercise, the pushing angle of the legs by the external force (F, F') is constant. rice field. Therefore, it is not possible to respond to changes in the user's state during trunk exercise, for example, changes in the state of action of external force (F, F') on the user due to changes in muscle tone or muscle flexibility, and the trunk is affected. In some cases, it could not be swung effectively.

そこで、本発明に係る体幹運動装置は、利用者を仰臥位で保持する仰臥台と、前記利用者の左右の脚を保持する脚載台と、前記左右の脚を交互に動かす外力を発生する駆動部と、前記脚載台の高さを調整する昇降部と、前記利用者への前記外力の作用状態を検出する外力作用状態検出部を備え、前記昇降部は、前記作用状態に応じて、前記脚載台の高さを調整してなるものである。 Therefore, the trunk exercise device according to the present invention generates an external force that alternately moves the left and right legs, the supine table that holds the user in the supine position, and the leg rest that holds the left and right legs of the user. The elevating unit is provided with a driving unit for adjusting the height of the leg rest, an external force acting state detecting unit for detecting the acting state of the external force on the user, and the elevating unit according to the operating state. Therefore, the height of the footrest is adjusted.

本発明の体幹運動装置によれば、外力を効率良く、利用者に作用させ、体幹を効果的に揺動させることができる。 According to the trunk exercise device of the present invention, an external force can be efficiently applied to the user to effectively swing the trunk.

本発明の実施形態に係る体幹運動装置の側面図Side view of the trunk exercise device according to the embodiment of the present invention 本発明の実施形態に係る体幹運動装置の平面図Top view of the trunk exercise device according to the embodiment of the present invention 本発明の実施形態に係る揺動機構を示す図The figure which shows the rocking mechanism which concerns on embodiment of this invention. 本発明の実施形態に係る体幹運動装置の変形例を示す図The figure which shows the modification of the trunk exercise apparatus which concerns on embodiment of this invention. 本発明の実施形態に係る体幹運動装置の変形例における要部を示す図The figure which shows the main part in the modification of the trunk exercise apparatus which concerns on embodiment of this invention. 本発明の実施形態に係る背中支持部と臀部支持部の変位差を示す図The figure which shows the displacement difference of the back support part and the buttocks support part which concerns on embodiment of this invention. 従来技術に係る体幹運動装置を示す図The figure which shows the trunk exercise device which concerns on the prior art

（第一実施形態）
以下、本発明の第一実施形態に係る体幹運動装置について、図１〜図３を参照して説明する。本実施形態の体幹運動装置は、基台１と、利用者を仰臥位で保持する仰臥台２と、利用者の左右の脚を保持する脚載台３と、左右の脚を交互に動かす外力を発生する駆動部４と、脚載台３の高さを調整する昇降部５と、駆動部４で発生させた外力を脚載台に伝えるシャフト６と、利用者の体幹への外力の作用状態を検出する外力作用状態検出部（図示せず）と、駆動部４や昇降部５など装置全体の制御を行う制御部（図示せず）を備える。 (First Embodiment)
Hereinafter, the trunk exercise device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3. The trunk exercise device of the present embodiment alternately moves the base 1, the supine position 2 that holds the user in the supine position, the leg rest 3 that holds the left and right legs of the user, and the left and right legs alternately. A drive unit 4 that generates an external force, an elevating unit 5 that adjusts the height of the leg mount 3, a shaft 6 that transmits the external force generated by the drive unit 4 to the leg mount 4, and an external force on the user's trunk. It is provided with an external force action state detection unit (not shown) for detecting the action state of the above, and a control unit (not shown) for controlling the entire device such as the drive unit 4 and the elevating unit 5.

仰臥台２は、利用者の上半身を支持する背中支持部７と、利用者の臀部を支持する臀部支持部８に分けて配置している。背中支持部７と臀部支持部８は、揺動機構により、体幹の左右方向へ揺動可能としている。図３には、揺動機構の一例として、背中支持部７の裏面を支持するボールキャスター９（a、b、c、d）と、ボールキャスター９（a、b、c、d）を取付ける取付板１０と、取付板１０の左右方向に取付けるばね１１（a、b）を示している。背中支持部７は、ボールキャスター９（a、b、c、d）により、体幹の揺動に合わせて左右方向の運動に追従することができる。また、ばね１１（a、b）により、利用者の矢状面上となる初期位置に、復帰することができる。臀部支持部８の揺動機構も、背中支持部７の揺動機構と同様の構成をしている。また、リニアガイドレールとばねを用い、左右方向へ揺動可能としてもよい。 The supine position 2 is divided into a back support portion 7 that supports the upper body of the user and a buttocks support portion 8 that supports the buttocks of the user. The back support portion 7 and the buttock support portion 8 can swing in the left-right direction of the trunk by a swing mechanism. In FIG. 3, as an example of the swing mechanism, the ball casters 9 (a, b, c, d) that support the back surface of the back support portion 7 and the ball casters 9 (a, b, c, d) are mounted. The plate 10 and the springs 11 (a, b) for mounting the mounting plate 10 in the left-right direction are shown. The back support portion 7 can follow the movement in the left-right direction in accordance with the swing of the trunk by the ball casters 9 (a, b, c, d). In addition, the springs 11 (a, b) allow the user to return to the initial position on the sagittal plane. The swing mechanism of the buttocks support portion 8 has the same configuration as the swing mechanism of the back support portion 7. Further, a linear guide rail and a spring may be used so as to be able to swing in the left-right direction.

また、外力は、駆動部４のシャフト６の回転により発生し、利用者の左右の脚を交互に身長方向へ移動させ、体幹を揺動させている。外力の周期は、シャフト６の回転速度で形成され、制御部が所望の回転速度になるよう制御している。駆動部４は、シャフト６を回転可能とするモータなど、アクチュエータであれば良い。 Further, the external force is generated by the rotation of the shaft 6 of the drive unit 4, and the left and right legs of the user are alternately moved in the height direction to swing the trunk. The period of the external force is formed by the rotation speed of the shaft 6, and the control unit controls the rotation speed to be desired. The drive unit 4 may be an actuator such as a motor that enables the shaft 6 to rotate.

また、外力作用状態検出部は、利用者の体幹への外力の作用状態として、体幹の左右方向への運動状態を検出している。体幹の左右方向への運動状態としては、上半身の左右方向の変位量を検出している。具体的には、利用者の上半身を支持する背中支持部７の左右方向への変位量を、検出している。 In addition, the external force action state detection unit detects the movement state of the trunk in the left-right direction as the action state of the external force on the trunk of the user. As the state of movement of the trunk in the left-right direction, the amount of displacement of the upper body in the left-right direction is detected. Specifically, the amount of displacement of the back support portion 7 that supports the upper body of the user in the left-right direction is detected.

また、昇降部５は、図１に示すように、パンタグラフ機構で構成されている。パンタグラフ機構は、昇降アーム（５ａ、５ｂ）を交差させ、昇降アーム（５ａ、５ｂ）を中間部５ｃで回動自在に連結させている。パンタグラフ機構の伸縮動作により、脚載台３の高さを、調整することができる。パンタグラフ機構の伸縮動作は、制御部が制御している。 Further, as shown in FIG. 1, the elevating part 5 is configured by a pantograph mechanism. In the pantograph mechanism, the elevating arms (5a, 5b) are crossed, and the elevating arms (5a, 5b) are rotatably connected at the intermediate portion 5c. The height of the footrest 3 can be adjusted by the expansion and contraction operation of the pantograph mechanism. The expansion and contraction operation of the pantograph mechanism is controlled by the control unit.

本実施形態の体幹運動装置は、外力作用状態検出部により検出された上半身の左右方向の変位量に応じて、制御部が昇降部５の高さを調整し、脚載台３の高さを調整している。具体的には、上半身の左右方向の変位量が大きくなるように、脚載台３の高さを調整している。例えば、制御部が、シャフト６の回転速度を一定に保った状態で、昇降部５の高さを調整し、上半身の左右方向への変位量が、最も大きくなるよう高さを制御している。そのため、所望のシャフト６の回転速度における、体幹が最も大きく揺動している状態で、運動を行うことができる。また、体幹が大きく揺動している状態は、利用者の体の筋緊張が緩和されており、リラックスした状態で体幹運動を行うことができるため、体幹の柔軟性向上など体幹運動の効果を、高く維持することができる。 In the trunk exercise device of the present embodiment, the control unit adjusts the height of the elevating unit 5 according to the amount of displacement of the upper body in the left-right direction detected by the external force action state detection unit, and the height of the leg mount 3 is adjusted. Is being adjusted. Specifically, the height of the footrest 3 is adjusted so that the amount of displacement of the upper body in the left-right direction becomes large. For example, the control unit adjusts the height of the elevating unit 5 while keeping the rotational speed of the shaft 6 constant, and controls the height so that the amount of displacement of the upper body in the left-right direction is maximized. .. Therefore, the exercise can be performed in a state where the trunk swings most at the desired rotation speed of the shaft 6. In addition, when the trunk is greatly swaying, the muscle tension of the user's body is relaxed and the trunk can be exercised in a relaxed state, so that the flexibility of the trunk can be improved. The effect of exercise can be maintained high.

また、複数の回転速度において、各回転速度における上半身の左右方向への変位量が、最も大きくなる高さを、それぞれ検出し、各高さにおける変位量を比較することができる。そのため、複数の回転速度から、最も変位量の大きい回転速度を選択し、さらに効果的に体幹を大きく揺動させることができる。また、運動開始前又は運動開始直後に、最も変位量の大きい回転速度と高さを検出し、体幹運動へ適応しても良い。運動開始直後から、効果的に体幹を効果的に揺動させることができ、体幹が最も揺動する状態に至るまでの時間を短縮することができる。また、体幹運動中に回転速度が変化する場合、上半身の左右方向への変位量が、最も大きくなる高さを検出し、高さ調整を行い、体幹が大きく揺動する状態を保つことができる。 Further, at a plurality of rotation speeds, the height at which the displacement amount of the upper body in the left-right direction at each rotation speed becomes the largest can be detected, and the displacement amount at each height can be compared. Therefore, the rotation speed having the largest displacement can be selected from the plurality of rotation speeds, and the trunk can be swung more effectively. Further, the rotation speed and height having the largest displacement may be detected before the start of the exercise or immediately after the start of the exercise, and may be adapted to the trunk exercise. Immediately after the start of exercise, the trunk can be effectively swung, and the time required for the trunk to swing the most can be shortened. In addition, when the rotation speed changes during trunk exercise, the height at which the amount of displacement of the upper body in the left-right direction becomes the largest is detected, the height is adjusted, and the trunk is maintained in a state of large swing. Can be done.

また、効率良く外力を体幹に作用させられる骨盤と下肢の接続角度は、利用者の筋肉の柔軟性や姿勢などにより異なる。しかしながら、本実施形態の体幹運動装置は、外力が効果的に体幹へ作用している状態を、探索することが可能であるため、利用者による相違や、体幹運動中における体の状態変化へも柔軟に対応し、常に体幹を効果的に揺動させることができる。 In addition, the connection angle between the pelvis and the lower limbs, which allows the external force to be efficiently applied to the trunk, differs depending on the flexibility and posture of the user's muscles. However, since the trunk exercise device of the present embodiment can search for a state in which an external force is effectively acting on the trunk, there are differences depending on the user and the state of the body during trunk exercise. It flexibly responds to changes and can always effectively swing the trunk.

また、脚載台３の高さを調整する点を考えると、脚載台３とシャフト６の回転軸との距離を調整し、脚載台３の高さを変更することが考えられる。この場合は、脚載台３とシャフト６の回転軸との距離が長くなると、利用者の脚の身長方向への移動距離が大きくなり、膝が屈曲し易くなる。そのため、体幹運動中に、膝の角度又は股関節の角度が変化するため、外力が減少する。しかしながら、本実施形態の体幹運動装置は、脚載台３と駆動部４を昇降させ、脚載台３とシャフト６の回転軸との距離が一定のため、利用者の脚の身長方向への移動距離を保った状態で、高さを調整することがきる。そのため、膝の角度又は股関節の角度を一定に保つことができ、所望の外力を安定して、体幹に作用させることができる。 Further, considering the point of adjusting the height of the footrest 3, it is conceivable to adjust the distance between the footrest 3 and the rotation axis of the shaft 6 to change the height of the footrest 3. In this case, if the distance between the footrest 3 and the rotation axis of the shaft 6 becomes long, the moving distance of the user's leg in the height direction becomes large, and the knee becomes easy to bend. Therefore, the angle of the knee or the angle of the hip joint changes during the trunk exercise, so that the external force decreases. However, in the trunk exercise device of the present embodiment, the footrest 3 and the drive unit 4 are raised and lowered, and the distance between the footrest 3 and the rotation axis of the shaft 6 is constant, so that the distance is in the direction of the height of the user's leg. The height can be adjusted while maintaining the movement distance of. Therefore, the angle of the knee or the angle of the hip joint can be kept constant, and a desired external force can be stably applied to the trunk.

また、図４、図５に示すように、駆動部４と昇降部５を、利用者の大腿部裏に配置してもよい。大腿部裏に配置することにより、外力が利用者の膝下の動きの影響を受けない。そのため、体幹運動中の膝の角度変化による、外力の減少を抑制することができる。また、所望の股関節の角度へ高さ調整する際に、利用者の踵部を昇降するより、昇降部５の昇降距離を短くすることができる。そのため、高さ調整時間を短縮し、高さ調整による体幹に作用する外力の減少を、抑制することができる。 Further, as shown in FIGS. 4 and 5, the drive unit 4 and the elevating unit 5 may be arranged on the back of the thigh of the user. By arranging it on the back of the thigh, external force is not affected by the movement of the user below the knee. Therefore, it is possible to suppress a decrease in external force due to a change in the angle of the knee during trunk exercise. Further, when adjusting the height to a desired hip joint angle, the elevating distance of the elevating portion 5 can be shortened rather than raising and lowering the heel portion of the user. Therefore, the height adjustment time can be shortened, and the decrease in the external force acting on the trunk due to the height adjustment can be suppressed.

また、外力の作用状態として、外力作用状態検出部が臀部支持部８の左右方向の変位量を検出し、変位量が大きくなるように、脚載台３の高さを調整することでも、同様の効果を得ることができる。 Further, as the action state of the external force, the external force action state detection unit detects the displacement amount of the buttock support portion 8 in the left-right direction, and the height of the footrest 3 is adjusted so that the displacement amount becomes large. The effect of can be obtained.

また、図６に示すように、外力の作用状態として、外力作用状態検出部が、背中支持部７と臀部支持部８の左右方向への変位量を検出してもよい。背中支持部７と臀部支持部８の移動が逆方向となる相対変位差を検出し、利用者の肩と腰の移動が逆方向となり、体幹が確実に揺動している状態を把握することができる。そのため、相対変位差が大きくなるよう脚載台３の高さを調整することで、より効果的に骨盤へ外力を作用させ、体幹運動効果を高めることができる。 Further, as shown in FIG. 6, as the action state of the external force, the external force action state detection unit may detect the amount of displacement of the back support portion 7 and the buttock support portion 8 in the left-right direction. Detects the relative displacement difference in which the movements of the back support portion 7 and the buttock support portion 8 are in opposite directions, and grasps the state in which the movements of the user's shoulders and hips are in opposite directions and the trunk is surely swinging. be able to. Therefore, by adjusting the height of the footrest 3 so that the relative displacement difference becomes large, it is possible to more effectively apply an external force to the pelvis and enhance the trunk exercise effect.

また、本実施形態では、体幹の左右方向への運動状態として、上半身の左右方向への変位量を用いたが、加速度を用いても同様の効果を得ることができる。また、昇降部５は、パンタグラフ機構を用いたが、レールに沿って昇降する機構など、脚載部３を昇降できる機構であれば良い。 Further, in the present embodiment, the amount of displacement of the upper body in the left-right direction is used as the state of movement of the trunk in the left-right direction, but the same effect can be obtained by using acceleration. Further, although the pantograph mechanism is used for the elevating part 5, any mechanism such as a mechanism for raising and lowering along the rail may be used as long as the leg mounting part 3 can be raised and lowered.

（第二実施形態）
以下、本発明の第二実施形態に係る体幹運動装置について、図１、図２を参照して説明する。第二実施形態の体幹運動装置は、第一実施形態の体幹運動装置と異なり、外力作用状態検出部が、外力の作用状態として、駆動部４にかかる負荷を検出している。駆動部４にかかる負荷を検出することで、利用者の骨盤への外力の作用状態を検出している。負荷としては、駆動部４にかかる負荷トルクを検出している。また、負荷としては、電流値、電力値など駆動部４における負荷を検出できる物理量であれば良い。 (Second Embodiment)
Hereinafter, the trunk exercise device according to the second embodiment of the present invention will be described with reference to FIGS. 1 and 2. In the trunk exercise device of the second embodiment, unlike the trunk exercise device of the first embodiment, the external force action state detecting unit detects the load applied to the drive unit 4 as the action state of the external force. By detecting the load applied to the drive unit 4, the state of action of an external force on the user's pelvis is detected. As the load, the load torque applied to the drive unit 4 is detected. Further, the load may be any physical quantity such as a current value and a power value that can detect the load in the drive unit 4.

また、外力作用状態検出部により検出された駆動部４における負荷トルクに応じて、制御部が昇降部５の高さを調整し、脚載台３の高さを調整している。具体的には、駆動部４における負荷トルクが小さくなるように、脚載台３の高さを調整している。例えば、制御部が、シャフト６の回転速度を一定に保った状態で、昇降部５の高さを調整し、負荷トルクが最も小さくなるよう高さを制御している。負荷トルクが大きい場合、脚の身長方向への移動に対する抵抗力が、大きくなる。そのため、本実施形態の体幹運動装置は、駆動部４の負荷トルクが小さくなるよう制御するため、脚の身長方向への移動に対する抵抗力が小さい状態で、外力を利用者の脚に加えることができ、外力を効果的に骨盤へ作用させることができる。 Further, the control unit adjusts the height of the elevating unit 5 and adjusts the height of the footrest 3 according to the load torque in the drive unit 4 detected by the external force action state detection unit. Specifically, the height of the footrest 3 is adjusted so that the load torque in the drive unit 4 becomes small. For example, the control unit adjusts the height of the elevating unit 5 while keeping the rotational speed of the shaft 6 constant, and controls the height so that the load torque is minimized. When the load torque is large, the resistance to the movement of the legs in the height direction becomes large. Therefore, in the trunk exercise device of the present embodiment, in order to control the load torque of the drive unit 4 to be small, an external force is applied to the user's leg while the resistance force against the movement of the leg in the height direction is small. And the external force can be effectively applied to the pelvis.

また、複数の回転速度で、各回転速度における負荷トルクが、最も小さくなるよう高さを、それぞれ検出し、各高さにおける負荷トルクを比較することができる。そのため、複数の負荷トルクから、最も負荷トルクが小さくなる回転速度を選択し、より効果的に外力を骨盤へ作用させることができる。また、運動開始前又は運動開始直後に、最も負荷トルクの小さい回転速度と高さを検出し、体幹運動へ適応しても良い。運動開始直後から、外力を効果的に骨盤へ作用させることができ、体幹が最も揺動する状態に至るまでの時間を短縮することができる。また、体幹運動中に回転速度が変化する場合、負荷トルクが、最も小さくなる高さを検出し、高さ調整を行い、外力が効果的に骨盤へ作用している状態を保つことができる。 Further, at a plurality of rotation speeds, the heights can be detected so that the load torque at each rotation speed becomes the smallest, and the load torques at each height can be compared. Therefore, the rotation speed at which the load torque is the smallest can be selected from the plurality of load torques, and the external force can be applied to the pelvis more effectively. Further, the rotation speed and height having the smallest load torque may be detected before the start of the exercise or immediately after the start of the exercise, and may be adapted to the trunk exercise. Immediately after the start of exercise, an external force can be effectively applied to the pelvis, and the time required for the trunk to swing most can be shortened. In addition, when the rotation speed changes during trunk exercise, the height at which the load torque becomes the smallest can be detected, the height can be adjusted, and the state in which the external force is effectively acting on the pelvis can be maintained. ..

また、脚の身長方向への移動に対する抵抗力を小さくすると、外力が作用される脚や腰などの部位に負荷が掛からず、当該部位が筋疲労や筋緊張状態となることを防ぐことができる。さらに、リラックスした状態で体幹運動を行うことができるため、体幹の柔軟性向上や筋緊張緩和という体幹運動の効果を、高く維持することができる。 In addition, if the resistance to the movement of the legs in the height direction is reduced, the load is not applied to the parts such as the legs and the waist where the external force is applied, and it is possible to prevent the parts from becoming muscle fatigue or muscle tone. .. Further, since the trunk exercise can be performed in a relaxed state, the effect of the trunk exercise such as improvement of the flexibility of the trunk and relaxation of muscle tone can be maintained high.

また、効率良く外力を骨盤に作用させられる脚の押し込み角度は、利用者により異なる。さらに、脚の身長方向への移動に対する抵抗力は、利用者の筋肉の柔軟性など体の状態により異なる。しかしながら、本実施形態の体幹運動装置は、脚の身長方向への移動に対する抵抗力が小さい状態を、探索することができるため、利用者による相違や、体の状態変化へも柔軟に対応し、常に骨盤に効率良く外力を作用させ、骨盤を揺動させることができる。 In addition, the pushing angle of the leg that can efficiently apply an external force to the pelvis differs depending on the user. Furthermore, the resistance to movement of the legs in the height direction differs depending on the physical condition such as the flexibility of the user's muscles. However, since the trunk exercise device of the present embodiment can search for a state in which the resistance to the movement of the legs in the height direction is small, it can flexibly respond to differences among users and changes in the state of the body. , It is possible to constantly apply an external force to the pelvis efficiently and swing the pelvis.

また、外力作用状態検出部は、外力の作用状態として、背中支持部７の左右方向への変位量と、駆動部４にかかる負荷を検出してもよい。例えば、背中支持部７の左右方向への変位量が大きくなるよう、脚載台３の高さを制御したにも拘らず、骨盤の揺動が小さいため、利用者の肩と腰が同方向へ揺動する。つまり、体幹の揺動が小さくなる場合がある。この場合、駆動部４にかかる負荷が小さくなるよう、脚載部３の高さを制御し、骨盤に効率良く外力を作用させ、骨盤を大きく揺動させることにより、肩と腰が逆方向へ移動するよう導くことができる。そのため、利用者が体幹運動中、体幹を効果的に揺動できない状態を抑制することができる。 Further, the external force action state detecting unit may detect the amount of displacement of the back support portion 7 in the left-right direction and the load applied to the drive unit 4 as the action state of the external force. For example, although the height of the footrest 3 is controlled so that the amount of displacement of the back support portion 7 in the left-right direction is large, the swing of the pelvis is small, so that the user's shoulders and hips are in the same direction. Swing to. That is, the swing of the trunk may be small. In this case, the height of the leg rest portion 3 is controlled so that the load applied to the drive portion 4 is reduced, an external force is efficiently applied to the pelvis, and the pelvis is greatly swung so that the shoulders and hips move in opposite directions. You can guide them to move. Therefore, it is possible to suppress a state in which the user cannot effectively swing the trunk during trunk exercise.

１ 基台
２ 仰臥台
３ 脚載台
４ 駆動部
５ 昇降部
６ シャフト
７ 背中支持部
８ 臀部支持部 1 Base 2 Supine 3 Leg mount 4 Drive 5 Lift 6 Shaft 7 Back support 8 Buttocks support

Claims (5)

利用者を仰臥位で保持する仰臥台と、前記利用者の左右の脚を保持する脚載台と、前記左右の脚を交互に動かす外力を発生する駆動部と、前記脚載台の高さを調整する昇降部と、前記利用者への前記外力の作用状態を検出する外力作用状態検出部を備え、前記昇降部は、前記作用状態に応じて、前記脚載台の高さを調整してなる体幹運動装置。 The height of the supine position that holds the user in the supine position, the leg mount that holds the left and right legs of the user, the drive unit that generates an external force that alternately moves the left and right legs, and the height of the leg mount. The elevating part is provided with an elevating part for adjusting the above and an external force acting state detecting part for detecting the acting state of the external force on the user, and the elevating part adjusts the height of the leg rest according to the acting state. Trunk exercise device. 前記外力作用状態検出部は、前記作用状態として、前記利用者の体幹の左右方向への運動状態を検出してなる請求項１に記載の体幹運動装置。 The trunk exercise device according to claim 1, wherein the external force action state detecting unit detects a movement state of the user's trunk in the left-right direction as the action state. 前記外力作用状態検出部は、体幹の左右方向への変位量又は加速度により前記運動状態を検出してなる請求項２に記載の体幹運動装置。 The trunk movement device according to claim 2, wherein the external force action state detection unit detects the movement state by the amount of displacement or acceleration of the trunk in the left-right direction. 前記外力作用状態検出部は、前記利用者の上半身又は臀部の左右方向への運動状態を検出してなる請求項２または３に記載の体幹運動装置。 The trunk exercise device according to claim 2 or 3, wherein the external force action state detection unit detects a movement state of the user's upper body or buttocks in the left-right direction. 前記外力作用状態検出部は、前記作用状態として、前記駆動部にかかる負荷を検出してなる請求項１〜４のいずれか１項に記載の体幹運動装置。 The trunk exercise device according to any one of claims 1 to 4, wherein the external force action state detection unit detects a load applied to the drive unit as the action state.
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