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Obstacle crossing in lower limb amputees

VRIELING AH; VAN KEEKEN HG; SCHOPPEN T; OTTEN E; HALBERTSMA JPK; HOF AL; POSTEMA K
GAIT POSTURE , 2007, vol. 26, n° 4, p. 587-594
Doc n°: 131834
Localisation : Documentation IRR
Descripteurs : EB3 - AMPUTATION DU MEMBRE INFERIEUR, DF241 - MARCHE DE L'AMPUTE - ETUDES - REEDUCATION

In a motion analysis laboratory unimpeded and obstacle crossing runs were performed. The subjects stepped over an obstacle of 0.1m height and thickness and 1m width. Outcome measures were gait velocity, hip, knee and ankle joint angles and leading limb preference. RESULTS: Whereas able-bodied and transtibial subjects demonstrated an increase in knee flexion during obstacle crossing compared to unimpeded walking, in transfemoral amputees the opposite was seen, namely a decrease in knee flexion. The lack of knee strategy in transfemoral amputees was compensated by circumduction at the hip on the prosthetic side and plantar flexion of the non-affected ankle. Transtibial amputees preferred to cross the obstacle with the prosthetic limb first, while transfemoral amputees preferred the non-affected limb. CONCLUSION: The different leading limb strategy in transfemoral and transtibial amputees could be explained by the restricted flexion and propulsion properties of the prosthetic knee. Training of obstacle crossing tasks during rehabilitation and improvement of prosthetic design may contribute to safe obstacle crossing.

Langue : ANGLAIS

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