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Stimulation parameter optimization for functional electrical stimulation assisted gait in human spinal cord injury using response surface methodology
KIM Y; SCHMIT BD; YOUM Y
CLIN BIOMECH , 2006, vol. 21, n° 5, p. 485-494 Doc n°: 125516 Localisation : Documentation IRR Descripteurs : DF22 - EXPLORATION EXAMENS BILANS - MARCHE, AE21 - ORIGINE TRAUMATIQUE The aims of this study were to identify the reflex moment induced by flexion withdrawal reflex and to optimize stimulation parameters for restoring swing motion with respect to initial kinematic conditions in human with spinal cord injury. METHODS: The influence of hip position and passive movement in the reflex moment were tested in six subjects with chronic spinal cord injury. The two-dimensional dynamic models consisted of thigh, shank and foot segments were developed to compute the swing-phase response and the response surface method was also used to optimize stimulation parameters for restoration of gait by functional electrical stimulation. FINDINGS: At three different hip positions, significant linear relationship was found between the reflex moment and hip angle (P < 0.05) and hip movement also increased the reflex moment compare to isometric conditions. Langue : ANGLAIS |
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