NDLI: Effects of inertial properties of transfemoral prosthesis on leg swing motion during stair ascent

Content Provider	IEEE Xplore Digital Library
Author	Inoue, K. Hobara, H. Wada, T.
Copyright Year	2013
Description	Author affiliation: Ritsumeikan Univ., Siga, Japan (Wada, T.) \|\| Kagawa Univ., Takamatsu, Japan (Inoue, K.) \|\| Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba, Japan (Hobara, H.)
Abstract	Stair ascent, especially the step-over-step gait, is a difficult motor task for people with transfemoral amputation. Our previous study demonstrated the effects of foot placement on the leg swing of able-bodied subjects. The study examined stair ascent with full-foot contact (FFC) and half-foot contact (HFC) as ambulation strategies. The results suggested that HFC causes the leg swing to have a greater inertial motion than FFC, as well as the applicability of the stair ascent strategy for transfemoral amputees with transfemoral prostheses without a motorized prosthetic knee joint. The present study investigated the effects of the inertial properties of a transfemoral prosthesis on leg motion during the stair ascent swing phase in simulation trials. The joint moment at the hip became smaller than that of an able-bodied subject. The peak values of the horizontal and vertical components of the joint reaction force were approximately the same as those of an able-bodied subject. These results suggest that a transfemoral prosthesis leg swing can be achieved with similar or smaller kinetic demand at the hip joint when half-foot contact on the stair steps is used as a stair ascent strategy. The mass had the largest effect of the inertial properties on the variability of the simulated kinetic parameters. The results of the present study may enhance prosthesis design with regard to the inertial properties and usability.
Starting Page	1591
Ending Page	1594
File Size	803080
Page Count	4
File Format	PDF
ISBN	9781457702167
ISSN	1557170X
DOI	10.1109/EMBC.2013.6609819
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-03
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Prosthetics Joints Thigh Knee Hybrid fiber coaxial cables Hip Acceleration
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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Effects of functional range of knee extension for transfemoral prosthesis on stair ascent motion

Metabolics of stair ascent with a powered transfemoral prosthesis

A passive transfemoral prosthesis with movable ankle for stair ascent

Effects of foot placement on the lower extremity in the swing phase during stair ascending: Implications for transfemoral prostheses

Novel knee joint mechanism of transfemoral prosthesis for stair ascent

Biomechanical conceptual design of a passive transfemoral prosthesis

Minimum jerk swing control allows variable cadence in powered transfemoral prostheses

Stumble detection and classification for an intelligent transfemoral prosthesis

Design of a fully-passive transfemoral prosthesis prototype

Effects of inertial properties of transfemoral prosthesis on leg swing motion during stair ascent

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