Related Experiment Video
Updated: Sep 16, 2025
09:13
A Vibrotactile Feedback Device for Seated Balance Assessment and Training
Published on: January 20, 2019
6.5K
A Low-Cost, Versatile, Open-Source, DIY Partial Body-Weight Support Device.
Summary
This study introduces a low-cost, open-source partial body weight support system using constant force springs. The device offers an accessible alternative to expensive robotic systems for gait training and rehabilitation.
Area of Science:
- Rehabilitation Engineering
- Biomechanics
- Assistive Technology
Background:
- Partial body weight support (PBWS) is crucial for gait training and rehabilitation.
- Robotic systems offer advanced PBWS but are costly and complex.
- A need exists for accessible, low-cost PBWS solutions.
Purpose of the Study:
- To develop and evaluate a low-cost, easily assembled PBWS system using constant force springs.
- To assess the system's performance and identify potential challenges.
Main Methods:
- Designed a PBWS system using off-the-shelf constant force springs.
- Evaluated system hysteresis at 61.2 N and 131 N support levels.
- Examined force constancy during simulated walking.
Main Results:
- The system is low-cost, requires no tools for assembly/maintenance, and integrates with overhead supports.
- Hysteresis was observed and noted to affect weight support consistency.
- Force constancy during walking was examined, highlighting potential design challenges.
Conclusions:
- The developed constant force spring system provides an accessible alternative to robotic PBWS.
- Hysteresis presents a challenge for precise weight support, requiring further design considerations.
- The open-source design encourages future improvements in affordable rehabilitation technology.
