Article

OBJECTIVE: To compare the well-recognized solid ankle cushion heel (SACH) foot
with the prosthetic foot developed by the International Committee of the Red
Cross (CR Equipements SACH) during gait. DESIGN: Double-blind study was conducted
to compare the influence on the biomechanics of gait of the CR Equipements SACH
foot and the SACH foot. SETTING: University hospital research center.
PARTICIPANTS: Participants with unilateral transtibial amputation (N=15) were
included. INTERVENTIONS: Three-dimensional motion analysis system and 2
forceplates were used to capture body motion and ground reaction forces during
gait at a self-selected speed and at 1.2m/s. MAIN OUTCOME MEASURES: Nonparametric
Wilcoxon matched-pairs tests were used to compare the 2 prosthetic feet with
respect to their spatiotemporal (gait velocity, stride length, and percentage of
stance phase), kinematic (range and peak angles of the pelvis, hip, knee, and
ankle), and kinetic (peak moment and power of the hip, knee, and ankle)
parameters. RESULTS: Compared with the SACH foot, the CR Equipements SACH foot
demonstrated a significantly greater stance phase symmetry ratio (SACH: 94% vs CR
Equipements SACH: 97%), a more extensive ankle range of motion in the sagittal
plane (SACH: 7 degrees vs CR Equipements SACH: 12 degrees ), a greater maximal
dorsiflexion angle during the terminal stance phase
(SACH: 10 degrees vs CR
Equipements SACH: 13 degrees ), and a higher ankle power (SACH: .31W/kg vs CR
Equipements SACH: .40W/kg). No significant difference was found for the examined
knee, hip, and pelvis parameters. CONCLUSIONS:
The CR Equipements SACH foot
provides more symmetry and improves ankle kinematics and kinetics in the sagittal
plane compared with the SACH foot. This study suggests that individuals using the
CR Equipements SACH foot improve their gait biomechanics compared when using the
SACH foot.
CI - Copyright (c) 2013 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS