Wearable Vibrotactile Biofeedback Device Allowing Identification of Different Floor Conditions for Lower-Limb Amputees

Archives of Physical Medicine and Rehabilitation
Anson Hong-Ping WanWinson Chiu-Chun Lee

Abstract

To evaluate a newly developed biofeedback device enabling lower-limb amputees to identify various floor conditions. Self-control with repeated measures (with and without the biofeedback device) within the amputee group, and group control comparing between amputee and nonamputee groups. University locomotion laboratory. Five lower-limb amputees and 8 nonamputees (N=13). A wearable biofeedback device, which identified different floor conditions by analyzing the force patterns under the prosthetic feet and provided vibration cues in response to different floor conditions, was provided to the amputees. The subjects stepped on a foam platform concealing a small object or no object at 1 of the 4 locations of the foot sole. Subjects were asked whether there was a small object under their feet and the location of the object if it existed. The test was repeated with 4 different object types and 4 object locations. The success rate of floor identification was evaluated. Without the biofeedback device, nonamputee subjects (76.56%) identified floor conditions better than amputees (22.5%) significantly (P<.001). On using the biofeedback device, the amputees significantly improved (P<.01) their success rate showing no significant difference ...Continue Reading

References

Jan 1, 1981·Annals of the New York Academy of Sciences·I Watanabe, J Okubo
Feb 18, 2004·Experimental Brain Research·Peter F MeyerCarlo J De Luca
Jan 24, 2013·Journal of Rehabilitation Research and Development·David RusawNerrolyn Ramstrand

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Citations

Sep 28, 2017·Topics in Stroke Rehabilitation·Christina Zong-Hao MaWinson Chiu-Chun Lee

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