- CConnexion
RééDOC
75 Boulevard Lobau 54042 NANCY cedex Christelle Grandidier Documentaliste 03 83 52 67 64 0
|
Estimation of hip abduction moment based on body fixed sensors
ZIJLSTRA W; BISSELING R
CLIN BIOMECH , 2004, vol. 19, n° 8, p. 819-827 Doc n°: 115208 Localisation : Documentation IRR Descripteurs : DE32 - EXPLORATION EXAMENS BILANS - HANCHE During standing and walking, abnormal trunk posture or movements may result from insufficient hip abductor force. Quantifying abduction moments requires inverse dynamics based on an appropriate model and measured data. Contrary to using a force plate and motion analysis system, body fixed sensors permit an analysis over subsequent strides and in a natural environment. Hence, the present paper analyses the feasibility of body fixed sensor-based estimations of the hip abduction moment. Methods. Two models were defined to estimate the hip abduction moment based on data measured by accelerometers and gyroscopes; one model assumes a rigid trunk, the other assumes an upper and lower trunk segment. Data of five healthy subjects in different loading conditions while standing or walking were used to compare sensor-based estimations with estimations based on measured position and force data. Findings. In different loading conditions, mean abduction moments calculated from position and force data varied between 0.27 Langue : ANGLAIS |
0
|