CN111659079A - Auxiliary for lifting soft opening of legs after dance training - Google Patents

Auxiliary for lifting soft opening of legs after dance training Download PDF

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CN111659079A
CN111659079A CN202010359863.3A CN202010359863A CN111659079A CN 111659079 A CN111659079 A CN 111659079A CN 202010359863 A CN202010359863 A CN 202010359863A CN 111659079 A CN111659079 A CN 111659079A
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leg
base
pull rod
leg hoop
hoop
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CN111659079B (en
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胡益凡
林友
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Suzhou Institute Of Technology
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Changshu Institute of Technology
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
    • A63B23/0482—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs primarily by articulating the hip joints
    • A63B23/0488—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs primarily by articulating the hip joints by spreading the legs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A63B71/12—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders
    • A63B71/1225—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders for the legs, e.g. thighs, knees, ankles, feet
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2244/00—Sports without balls
    • A63B2244/22—Dancing

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  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Tools (AREA)

Abstract

本发明公开了一种舞蹈训练后腿软开度提升辅助器，包括底座、拉杆、腿箍和护膝托板，所述拉杆、腿箍和护膝托板依次前后排列设置于所述底座上，所述拉杆通过拉杆拉索连接于所述底座，所述腿箍通过升降支撑杆连接于所述底座，所述拉杆和所述腿箍相对于所述底座同步反向升降，所述护膝托板通过弹性支撑杆连接于所述底座。本发明便于训练者自主进行后退软开度的提升训练。

Figure 202010359863

The invention discloses an auxiliary device for improving the soft opening of the legs after dance training, which comprises a base, a pull rod, a leg cuff and a knee support plate. The pull rod, the leg cuff and the knee support plate are arranged in sequence on the base. The pull rod is connected to the base through a pull rod cable, and the leg cuff is connected to the base through a lifting support rod. The elastic support rod is connected to the base. The invention is convenient for the trainer to independently carry out the lifting training of the soft opening of the retreat.

Figure 202010359863

Description

舞蹈训练后腿软开度提升辅助器Auxiliary for lifting soft opening of legs after dance training

技术领域technical field

本发明涉及一种舞蹈训练器械，特别是涉及一种舞蹈训练后腿软开度提升辅助器。The invention relates to a dance training apparatus, in particular to an auxiliary device for lifting the soft opening of the legs after dance training.

背景技术Background technique

“开、绷、直”是对舞蹈演员的基本要求，在舞蹈基本功训练系统中占有核心地位，亦是行业评价的重要审美标准。舞蹈训练中，尤其在芭蕾基础训练、中国古典舞基础训练中，从横叉、竖叉等基本动作到Arabesque、Attitude、倒踢紫金冠等典型动作，都需要后腿部分软开度的支撑。该训练关联大腿屈肌群(股四头肌、阔筋膜张肌、耻骨肌)、大腿伸肌群(股二头肌、半腱肌、半膜肌、大收肌等)以及髋关节、膝关节等，因此，对后腿软开度规范的训练就成为舞蹈教育领域的重要课题之一。"Open, stretch, and straight" are the basic requirements for dancers, occupy a core position in the basic dance training system, and are also an important aesthetic standard for industry evaluation. In dance training, especially in the basic training of ballet and Chinese classical dance, from basic movements such as horizontal fork and vertical fork to typical movements such as Arabesque, Attitude, and kicking the purple gold crown, the support of the soft opening of the rear leg is required. This training involves thigh flexors (quadriceps, tensor fascia lata, pubis), thigh extensors (biceps femoris, semitendinosus, semimembranosus, adductor magnus, etc.) as well as hip, Therefore, the training of the soft opening of the hind legs has become one of the important topics in the field of dance education.

后腿日常训练中最为典型且较难控制的“弓步”状态动作，在常规的训练教学中，大多采用“臀大肌部位外力强压法”和“弓步自主按压法”配合训练，产生了一定的训练效果，但弊端也较为凸显：The most typical and difficult-to-control "lunge" state movement in the daily training of the hind legs, in the conventional training and teaching, most of the "gluteus maximus external force pressure method" and "lunge automatic compression method" are used for training, resulting in There are certain training effects, but the disadvantages are also more prominent:

1、在“臀大肌部位外力强压法”中，被压者前腿保持弓步状态，后腿垂直向后方向延展，膝盖、脚背紧贴地面，由专业舞蹈教师凭借教学经验，使用手、脚等强压被压者的后腿臀大肌部位，或抱紧被压者并蹲坐其臀大肌部位。因教师手法、经验、力度可控性等问题，非常容易导致被压者肌肉、筋膜损伤，甚至有造成骨骼损伤的案例出现。1. In the "Gluteus maximus external force pressing method", the front leg of the pressed person is kept in a lunge state, the rear leg is extended vertically and backward, and the knees and insteps are close to the ground. Professional dance teachers rely on their teaching experience to use hands, Press the gluteus maximus of the hind leg of the person being pressed, or hold the person pressed tightly and squat on the gluteus maximus of the person being pressed. Due to teachers' techniques, experience, and controllability of strength, it is very easy to cause muscle and fascia damage to the victim, and even bone damage.

2、在“弓步自主按压法”中，训练者保持弓步状态，按照呼吸向下颤动或保持身体直立状态利用重心力向下拉伸。在训练过程中需要保持身体核心以及膝关节的稳定性，始终保持髋关节的放松和重心下沉的意识。对于训练基础较弱、训练强度不足、舞蹈肌肉控制能力较弱的舞者，则很难得到较好的训练结果，甚至常出现“膝关节无法绷直延展”、“膝关节内旋”等不规范动作或方法，给训练带来了诸多风险。2. In the "Lunge Self-Pressing Method", the trainer maintains the lunge state, vibrates down according to the breathing or keeps the body upright and uses the center of gravity to stretch downwards. During the training process, it is necessary to maintain the stability of the core of the body and the knee joint, and always maintain the relaxation of the hip joint and the consciousness of sinking the center of gravity. For dancers with weak training foundation, insufficient training intensity, and weak dance muscle control ability, it is difficult to obtain better training results, and there are often problems such as "the knee joint cannot be stretched and extended" and "the knee joint is internally rotated". Normative movements or methods bring many risks to training.

发明内容SUMMARY OF THE INVENTION

针对上述现有技术缺陷，本发明的任务在于提供一种舞蹈训练后腿软开度提升辅助器，以帮助训练基础较弱、舞蹈肌肉控制能力较弱的舞者进行后腿软开度训练。In view of the above-mentioned defects of the prior art, the task of the present invention is to provide an auxiliary device for raising the soft opening of the rear legs for dance training, so as to help dancers with weak training foundation and weak dance muscle control ability to perform the soft opening training of the rear legs.

本发明技术方案是这样的：一种舞蹈训练后腿软开度提升辅助器，包括底座、拉杆、腿箍和护膝托板，所述拉杆、腿箍和护膝托板依次前后排列设置于所述底座上，所述拉杆通过拉杆拉索连接于所述底座，所述腿箍通过升降支撑杆连接于所述底座，所述拉杆和所述腿箍相对于所述底座同步反向升降，所述护膝托板通过弹性支撑杆连接于所述底座。The technical scheme of the present invention is as follows: an auxiliary device for improving the soft opening of the legs after dance training, comprising a base, a pull rod, a leg hoop and a knee pad support plate, and the pull rod, leg hoop and knee pad support plate are arranged in sequence on the On the base, the pull rod is connected to the base through a pull rod cable, the leg hoop is connected to the base through a lifting support rod, and the pull rod and the leg hoop are lifted and lowered synchronously in the opposite direction relative to the base, and the The knee brace is connected to the base through an elastic support rod.

进一步地，所述拉杆和所述腿箍的升降比为1︰1.5～1︰2。Further, the lifting ratio of the tie rod and the leg cuff is 1:1.5～1:2.

进一步地，所述拉杆相对于所述底座的升降移动范围为15～20cm。Further, the lifting and moving range of the pulling rod relative to the base is 15-20 cm.

进一步地，所述底座内设有齿轮齿条组，所述齿轮齿条组包括拉杆齿条和腿箍齿条，所述拉杆齿条的一端连接所述拉杆拉索，所述腿箍齿条的一端连接腿箍拉索，所述腿箍拉索的末端连接所述腿箍，所述腿箍拉索穿设于所述升降支撑杆内，所述拉杆齿条与所述腿箍齿条之间通过若干齿轮和齿条啮合传力。Further, a rack and pinion group is arranged in the base, and the rack and pinion group includes a pull rod rack and a leg hoop rack, one end of the pull rod rack is connected to the pull rod cable, and the leg hoop rack One end of the leg hoop cable is connected to the leg hoop cable, and the end of the leg hoop cable is connected to the leg hoop. The force is transmitted through the meshing of several gears and racks.

进一步地，所述升降支撑杆包括腿箍弹簧，所述腿箍弹簧的底端固定连接于所述底座，所述腿箍弹簧的顶端与所述腿箍固定连接。Further, the lifting support rod includes a leg hoop spring, the bottom end of the leg hoop spring is fixedly connected to the base, and the top end of the leg hoop spring is fixedly connected to the leg hoop.

进一步地，所述弹性支撑杆包括若干依次层叠套设的环，所述环内设有护膝弹簧，所述护膝弹簧的底端固定连接于所述底座，所述护膝弹簧的顶端与最内层的所述环固定连接，最内层的环与所述护膝托板连接。Further, the elastic support rod includes a number of rings that are stacked and sleeved in sequence, a knee pad spring is arranged in the ring, the bottom end of the knee pad spring is fixedly connected to the base, and the top end of the knee pad spring is connected to the innermost layer. The ring is fixedly connected, and the innermost ring is connected with the knee brace.

进一步地，所述护膝托板的底部固定连接有球头，所述球头卡设于所述最内层的环内。Further, a ball head is fixedly connected to the bottom of the knee support plate, and the ball head is clamped in the innermost ring.

本发明与现有技术相比的优点在于：通过训练者自主的拉动拉环，由腿箍向下拉动大腿，护膝托板提供向上的反作用力顶着膝关节处于崩直状态从而起到辅助训练的作用。训练过程安全可控，由护膝托板和腿箍形成固定点可防止训练过程中关节位置的转向变形而失去训练效果。Compared with the prior art, the advantage of the present invention is that: by pulling the pull ring autonomously by the trainer, the thigh is pulled down by the leg hoop, and the knee pad supports the knee joint to provide an upward reaction force and is in a collapsed straight state, thereby assisting training. effect. The training process is safe and controllable, and the fixed point formed by the knee pad and the leg cuff can prevent the steering deformation of the joint position during the training process and lose the training effect.

附图说明Description of drawings

图1为舞蹈训练后腿软开度提升辅助器结构示意图。Figure 1 is a schematic diagram of the structure of the auxiliary device for raising the soft opening of the legs after dance training.

图2为舞蹈训练后腿软开度提升辅助器纵向剖视示意图。Fig. 2 is a longitudinal cross-sectional schematic diagram of a leg soft opening lifting aid after dance training.

图3为齿轮齿条组结构示意图。FIG. 3 is a schematic diagram of the structure of the rack and pinion group.

具体实施方式Detailed ways

下面结合实施例对本发明作进一步说明，但不作为对本发明的限定。The present invention will be further described below in conjunction with the examples, but it is not intended to limit the present invention.

请结合图1至图3所示，本实施例涉及的舞蹈训练后腿软开度提升辅助器包括底座1、拉杆2、腿箍3和护膝托板4，拉杆2、腿箍3和护膝托板4依次前后排列设置在底座1上。底座1的前部为拉杆2，中部为腿箍3，后部为护膝托板4，腿箍3通过升降支撑杆5连接在底座1上，护膝托板4通过弹性支撑杆6连接在底座上。Referring to FIGS. 1 to 3 , the auxiliary device for improving the soft opening of the legs after dance training involved in this embodiment includes a base 1 , a pull rod 2 , a leg cuff 3 and a knee pad 4 , a pull rod 2 , a leg cuff 3 and a knee support plate 4 . The plates 4 are arranged on the base 1 in sequence. The front part of the base 1 is the pull rod 2, the middle part is the leg hoop 3, and the rear part is the knee pad 4. The leg hoop 3 is connected to the base 1 through the lifting support rod 5, and the knee pad 4 is connected to the base through the elastic support rod 6. .

具体的，底座1的前部开设一个通孔，拉杆2连接有拉杆拉索7，拉杆拉索7的头端连接拉杆2，拉杆拉索7的尾端从前部的通孔伸入底座1的内部。底座1的中部也开设一个通孔，腿箍3为上端开口的环形箍，腿箍3的下端连接升降支撑杆5，升降支撑杆5包括腿箍弹簧5a，腿箍弹簧5a的外面可以设置一个柔性保护套5b，避免腿箍弹簧5a外露。腿箍弹簧5a的底端固定连接在底座1上并使底座1的中部的通孔处于腿箍弹簧5a下，腿箍弹簧5a的顶端与腿箍3固定连接。腿箍3的下端还连接一个腿箍拉索8，腿箍拉索8设置在腿箍弹簧5a内，其末端通过底座1的中部的通孔伸入底座1的内部。底座1内设有齿轮齿条组，齿轮齿条组包括拉杆齿条9和腿箍齿条10，拉杆齿条9的一端连接拉杆拉索7，腿箍齿条10的一端连接腿箍拉索8，拉杆齿条9与腿箍齿条10之间通过两组齿轮和一个中间齿条11啮合传力。请结合图3所示，拉杆齿条9受拉杆拉索7拉动(拉杆2被向上拉起)向左移动时，第一齿轮12和第四齿轮15顺时针转动，第二齿轮13、第三齿轮14和第五齿轮16逆时针转动，中间齿条11也向左移动，而腿箍齿条10向右移动，腿箍拉索8进一步伸入底座1内部，从而使得腿箍3下降。拉杆2和腿箍3的升降比应为1︰1.5～1︰2，即拉杆2每上升1cm，腿箍3下降1.5～2cm，拉杆2相对于底座1的升降移动范围为15～20cm，也就是腿箍3相对于底座1的升降移动范围为30～40cm。底座1内部结构主要是为了实现拉杆2与腿箍3的反向运动，因此除了齿轮齿条组还可以通过滑轮组来达到相似效果，而采用齿轮齿条组可以通过齿轮大小比例来调整拉杆2和腿箍3的升降比，使用滑轮组则通过一个动滑轮能实现1︰2的升降比。Specifically, a through hole is defined in the front of the base 1 , the pull rod 2 is connected with a pull rod cable 7 , the head end of the pull rod pull cable 7 is connected with the pull rod 2 , and the tail end of the pull rod pull cable 7 extends from the front through hole into the base 1 . internal. There is also a through hole in the middle of the base 1, the leg hoop 3 is an annular hoop with an upper end opening, and the lower end of the leg hoop 3 is connected to a lifting support rod 5. The lifting support rod 5 includes a leg hoop spring 5a, and the outside of the leg hoop spring 5a can be provided with a The flexible protective cover 5b prevents the leg band spring 5a from being exposed. The bottom end of the leg hoop spring 5a is fixedly connected to the base 1 and the through hole in the middle of the base 1 is under the leg hoop spring 5a, and the top end of the leg hoop spring 5a is fixedly connected to the leg hoop 3. The lower end of the leg hoop 3 is also connected with a leg hoop cable 8 . The leg hoop cable 8 is arranged in the leg hoop spring 5 a and its end extends into the interior of the base 1 through the through hole in the middle of the base 1 . The base 1 is provided with a rack and pinion group. The rack and pinion group includes a pull rod rack 9 and a leg hoop rack 10. One end of the pull rod rack 9 is connected to the pull rod cable 7, and one end of the leg hoop rack 10 is connected to the leg hoop cable. 8. The pull rod rack 9 and the leg hoop rack 10 engage and transmit force through two sets of gears and an intermediate rack 11 . Referring to Figure 3, when the pull rod rack 9 is pulled by the pull rod cable 7 (the pull rod 2 is pulled up) and moves to the left, the first gear 12 and the fourth gear 15 rotate clockwise, the second gear 13, the third gear The gear 14 and the fifth gear 16 rotate counterclockwise, the middle rack 11 also moves to the left, and the leg band rack 10 moves to the right, and the leg band cable 8 further extends into the base 1, thereby causing the leg band 3 to descend. The lifting ratio of the tie rod 2 and the leg hoop 3 should be 1:1.5~1:2, that is, every time the tie rod 2 rises by 1cm, the leg hoop 3 drops 1.5~2cm, and the lifting range of the tie rod 2 relative to the base 1 is 15~20cm. That is, the lifting and moving range of the leg hoop 3 relative to the base 1 is 30-40 cm. The internal structure of the base 1 is mainly to realize the reverse movement of the tie rod 2 and the leg hoop 3. Therefore, in addition to the rack and pinion group, a pulley block can also be used to achieve a similar effect, and the rack and pinion group can be used to adjust the size of the tie rod 2 and the gear. The lifting ratio of the leg hoop 3 can achieve a lifting ratio of 1:2 by using a pulley block through a movable pulley.

在底座1的后部为护膝托板4，护膝托板4为U型板用于承托膝关节。弹性支撑杆6包括若干依次层叠套设的环6a，通过大环套小环来实现保持膝盖处的稳定性，环6a内设有护膝弹簧6b，护膝弹簧6b的底端固定连接在底座1上，护膝弹簧6b的顶端与最内层的环6a固定连接，护膝托板4底部固定连接有球头6c，球头6c卡设于最内层的环6a内实现最内层的环6a与护膝托板4的连接。在下压的过程中，护膝弹簧4b压缩产生一个向上的弹力顶住膝盖保持绷直，层叠套设的环6a保证护膝弹簧的稳定使得膝盖不会摇晃，球头6c的设置让使用者在使用时膝盖处不至过度约束。At the rear of the base 1 is a knee pad 4, which is a U-shaped plate for supporting the knee joint. The elastic support rod 6 includes a number of rings 6a that are stacked in sequence, and the stability of the knee is maintained by the large ring and the small ring. The ring 6a is provided with a knee pad spring 6b, and the bottom end of the knee pad spring 6b is fixedly connected to the base 1. , the top of the knee brace spring 6b is fixedly connected with the innermost ring 6a, the bottom of the knee brace 4 is fixedly connected with a ball head 6c, and the ball head 6c is clamped in the innermost ring 6a to realize the innermost ring 6a and the knee brace Connection of pallet 4. In the process of pressing down, the knee brace spring 4b compresses to generate an upward elastic force against the knee to keep it straight. The stacked ring 6a ensures the stability of the knee brace spring so that the knee does not sway. The setting of the ball head 6c allows the user to use it when using Do not overly restrain your knees.

利用本装置进行训练时，使用者将护膝托板4绑在膝关节处，将腿箍3箍在大腿根部，向上拉动拉杆2，进而腿箍3向下拉动大腿，同时护膝托板4下的护膝弹簧6b会提供一个向上的弹力使得使用者在腿部被下拉时提供向上的反作用力顶着膝关节处于崩直状态从而起到辅助训练的作用。When using this device for training, the user ties the knee pad support plate 4 to the knee joint, hoops the leg hoop 3 at the root of the thigh, pulls the pull rod 2 upward, and then the leg hoop 3 pulls the thigh downward, and at the same time, the knee pad 4 under the knee pad supports The knee brace spring 6b will provide an upward elastic force so that when the user's leg is pulled down, the user will provide an upward reaction force against the knee joint in a collapsed state, thereby playing an auxiliary training role.

Claims (7)

1. The utility model provides a soft aperture of leg promotes assistor after dance training which characterized in that, includes base, pull rod, leg hoop and knee-pad layer board arrange in proper order the back and forth set up in on the base, the pull rod pass through the pull rod cable connect in the base, the leg hoop pass through the lift bracing piece connect in the base, the pull rod with the leg hoop for the synchronous reverse lift of base, the knee-pad layer board pass through elastic support rod connect in the base.
2. The dance training rear leg softness opening lifting aid according to claim 1, wherein a lifting ratio of the pull rod to the leg hoop is 1: 1.5-1: 2.
3. The dance training hind leg flexibility opening lift assist apparatus according to claim 2, wherein the range of lifting movement of the pull rod relative to the base is 15-20 cm.
4. The dance training rear leg opening degree lifting aid according to claim 1, wherein a gear rack set is arranged in the base, the gear rack set comprises a pull rod rack and a leg hoop rack, one end of the pull rod rack is connected with the pull rod cable, one end of the leg hoop rack is connected with the leg hoop cable, the tail end of the leg hoop cable is connected with the leg hoop, the leg hoop cable penetrates through the lifting support rod, and force is transferred between the pull rod rack and the leg hoop rack through meshing of a plurality of gears and racks.
5. The dance training rear leg opening degree lifting aid according to claim 1, wherein the lifting support rod comprises a leg hoop spring, a bottom end of the leg hoop spring is fixedly connected to the base, and a top end of the leg hoop spring is fixedly connected to the leg hoop.
6. The dance training rear leg flexibility opening degree lifting aid according to claim 1, wherein the elastic support rod comprises a plurality of rings sequentially sleeved in a stacked manner, a knee protection spring is arranged in each ring, the bottom end of the knee protection spring is fixedly connected to the base, the top end of the knee protection spring is fixedly connected to the innermost ring, and the innermost ring is connected to the knee protection supporting plate.
7. The dance training rear leg opening lifting aid according to claim 6, wherein a ball head is fixedly connected to the bottom of the knee pad supporting plate, and the ball head is clamped in the innermost ring.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5354251A (en) * 1993-11-01 1994-10-11 Sleamaker Robert H Multifunction excercise machine with ergometric input-responsive resistance
US6942605B1 (en) * 2003-12-09 2005-09-13 Feliks Sukhovitsky Exercise equipment
CN201171766Y (en) * 2008-04-15 2008-12-31 张建中 Lower limb rehabilitation trainer
CN202237141U (en) * 2011-09-26 2012-05-30 崔灿 Dance soft opening training device
US20150328520A1 (en) * 2014-02-18 2015-11-19 Paul Augustine Barnes Hydro eliminator full body exercise swim machine
CN109248407A (en) * 2018-11-30 2019-01-22 泰山医学院 The spring movement health care rehabilitation apparatus that trick interlocks

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5354251A (en) * 1993-11-01 1994-10-11 Sleamaker Robert H Multifunction excercise machine with ergometric input-responsive resistance
US6942605B1 (en) * 2003-12-09 2005-09-13 Feliks Sukhovitsky Exercise equipment
CN201171766Y (en) * 2008-04-15 2008-12-31 张建中 Lower limb rehabilitation trainer
CN202237141U (en) * 2011-09-26 2012-05-30 崔灿 Dance soft opening training device
US20150328520A1 (en) * 2014-02-18 2015-11-19 Paul Augustine Barnes Hydro eliminator full body exercise swim machine
CN109248407A (en) * 2018-11-30 2019-01-22 泰山医学院 The spring movement health care rehabilitation apparatus that trick interlocks

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