Document Detail

Physiological measurements of walking and running in people with transtibial amputations with 3 different prostheses.
MedLine Citation:
PMID:  10518294     Owner:  NLM     Status:  MEDLINE    
STUDY DESIGN: A 3-factor (foot type, speed, and mode of ambulation) repeated-measures experimental design was used. OBJECTIVES: To compare the differences in energy expenditure, gait efficiency, and relative exercise intensity in persons with transtibial amputations with various prostheses. BACKGROUND: There is a need for improved prosthetic designs to accommodate physically active persons with lower-extremity amputations. METHODS AND MEASURES: We used progressive speeds of treadmill walking (53.64, 67.05, 80.46, 93.87, and 107.28 m/min) and running (120.69, 134.1, and 147.51 m/min) with 3 different types of prostheses: the Solid Ankle Cushion Heel (SACH) foot, the Flex-Foot (FF), and the Re-Flex Vertical Shock Pylon (VSP) prosthesis. Five physically active men with unilateral transtibial amputations served as subjects (aged 31.6 +/- 4.28 years). RESULTS: The following statistically significant differences (improvements) between the Re-Flex VSP versus the FF and the SACH foot were found. Energy cost: walking (5%), running (11%); gait efficiency: walking (6%), running (9%); relative exercise intensity: walking (4%), running (5%). However, we found no significant differences between the FF and the SACH. CONCLUSIONS: The Re-Flex VSP appears to have a positive effect on energy cost, efficiency, and relative exercise intensity compared with the other prosthetic foot types during walking and running.
M J Hsu; D H Nielsen; H J Yack; D G Shurr
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of orthopaedic and sports physical therapy     Volume:  29     ISSN:  0190-6011     ISO Abbreviation:  J Orthop Sports Phys Ther     Publication Date:  1999 Sep 
Date Detail:
Created Date:  1999-10-26     Completed Date:  1999-10-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7908150     Medline TA:  J Orthop Sports Phys Ther     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  526-33     Citation Subset:  IM    
Physical Therapy Graduate Program, College of Medicine, University of Iowa, Iowa City 52242-1008, USA.
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MeSH Terms
Artificial Limbs*
Leg / surgery*
Prosthesis Design
Running / physiology*
Walking / physiology*

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