scholarly journals Dynamic Modeling and Simulation of a Body Weight Support System

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Zhendong Song ◽  
Wei Chen ◽  
Wenbing Wang ◽  
Guoqing Zhang
Keyword(s):  
Body Weight ◽  
Control Process ◽  
Vertical Motion ◽  
The Body ◽  
Body Weight Support ◽  
Gait Rehabilitation ◽  
Series Elastic Actuator ◽  
Weight Support ◽  
Support Force ◽  
Body Weight Support System

This paper proposes a body weight support (BWS) system with a series elastic actuator (SEA) to facilitate walking assistance and motor relearning during gait rehabilitation. This system comprises the following: a mobile platform that ensures movement of the system on the ground, a BWS mechanism with an SEA that is capable of providing the desired unloading force, and a pelvic brace to smooth the pelvis motions. The control of the body weight support is realized by an active weight-offload method, and a dynamic model of the BWS system with offload mass of a human is conducted to simulate the control process and optimize the parameters. Preliminary results demonstrate that the BWS system can provide the desired support force and vertical motion of the pelvis.

scholarly journals Influence of Body Weight Support Systems on the Abnormal Gait Kinematic

2020 ◽  
Vol 10 (13) ◽  
pp. 4685
Author(s):  
Van-Thuc Tran ◽  
Kota Sasaki ◽  
Shin-ichiroh Yamamoto
Keyword(s):  
Body Weight ◽  
Support System ◽  
Support Systems ◽  
The Body ◽  
Body Weight Support ◽  
Weight System ◽  
Abnormal Gait ◽  
Weight Support ◽  
The Right ◽  
Body Weight Support System

In recent years, the Body Weight Support system has been considered to be an indispensable component in gait training systems, which be used to improve the ability to walk of hemiplegic, stroke, and spinal cord injury patients. Previous studies investigated the influence of the Body Weight Support system on gait parameters were based on the implementation with healthy subjects or patients with high assistance. Consequently, the influences of the Body Weight Support systems on gait rehabilitation in clinical practice are still unclear and need further investigation. In this study, we investigated the effects of the two Body Weight Support systems, the active body weight support system and the Counter Weight system, on an abnormal gait, which was generated by restriction of the right knee joint and 3 kg-weight on the right ankle joint. Both Body Weight Support systems improve the gait parameters of the abnormal gait such as the center of mass, the center of pressure, margin of stability, and step parameters. The active Body Weight Support system with the unloading force modulation showed more advanced and better behavior in comparison with the Counter Weight system. The results suggested the applicability of two Body Weight Support systems in clinical practice as a recovered gait intervention.

Prosthesis Design for Bilateral Hip Disarticulation Management

2014 ◽  
Vol 664 ◽  
pp. 423-428
Author(s):  
Mauricio Plaza Torres ◽  
William Aperador
Keyword(s):  
Body Weight ◽  
Lower Extremity ◽  
Hip Joint ◽  
Joint Capsule ◽  
The Body ◽  
Body Weight Support ◽  
Patient Mobility ◽  
Weight Support ◽  
Crush Injuries ◽  
High Level

Hip disarticulation is an amputation through the hip joint capsule, removing the entire lower extremity, with closure of the remaining musculature over the exposed acetabulum. Tumors of the distal and proximal femur were treated by total femur resection; a hip disarticulation sometimes is performance for massive trauma with crush injuries to the lower extremity. This article discusses the design a system for rehabilitation of a patient with bilateral hip disarticulations. The prosthetics designed allowed the patient to do natural gait suspended between parallel articulate crutches with the body weight support between the crutches. The care of this patient was a challenge due to bilateral amputations at such a high level and the special needs of a patient mobility.

Estimating Range of Lower Body Joint Angles with a Sensorized Overground Body-Weight Support System

2021 ◽  
Author(s):  
Chun Kwang Tan ◽  
Bruno Leme ◽  
Eleuda Nunez ◽  
Hideki Kadone ◽  
Kenji Suzuki ◽  
...  
Keyword(s):  
Body Weight ◽  
Support System ◽  
Body Weight Support ◽  
Lower Body ◽  
Joint Angles ◽  
Weight Support ◽  
Body Weight Support System ◽  
Body Joint
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