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Validity and comparisons of tibiofemoral orientations and displacement using a femoral tracking device during early to mid stance of walking
HOUCK J; YACK HJ; CUDDEFORD T
GAIT POSTURE , 2004, vol. 19, n° 1, p. 76-84 Doc n°: 111206 Localisation : Documentation IRR Descripteurs : DE42 - EXPLORATION EXAMENS BILANS - CUISSE-FEMUR, DF24 - REEDUCATION DE LA MARCHE First, this study compares tibiofemoral motion during walking using a new femoral tracking device (FTD) and bone mounted markers in a single subject (n=1). The results suggest errors of <3 degrees in tibiofemoral angles using the FTD method over the first 85% of stance. Second, this study compares tibiofemoral angles and displacement during walking using the FTD method and a modified Helen Hayes method to track the femur in 13 subjects (n=13). The results suggest similar tibiofemoral angles in the sagittal and frontal planes using the two methods (average root mean square (RMS) differences <3.6+/-1.5 degrees ), and a large decrease in the transverse plane angles (average RMS differences=6.5+/-1.9 degrees ) and estimates of tibiofemoral displacement (P<0.05) using the FTD method. The FTD method presents a practical alternative to recording tibiofemoral transverse plane angles and displacement over the first 85% of stance. Langue : ANGLAIS Identifiant basis : 2004229274 |
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