Article

To analyze human motion such as daily activities or sports outside of the
laboratory, wearable motion analysis systems have been recently developed. In
this study, the joint forces and moments in whole-body joints during gait were
evaluated using a wearable motion analysis system consisting of an inertial
motion measurement system and an in-shoe pressure sensor system. The magnitudes
of the joint forces and the moments in nine joints (cervical, thoracic, lumbar,
right shoulder, right elbow, right wrist, right hip, right knee, and right ankle)
during gait were calculated using the wearable system and the conventional
system, respectively, based on a standard inverse dynamics analysis. The averaged
magnitudes of the joint forces and moments of five subjects were compared between
the wearable and conventional systems in terms of the Pearson's correlation
coefficient and the normalized root mean squared error to the maximum value from
the conventional system. The results indicated that both the joint forces and
joint moments in human whole body joints using wearable inertial motion sensors
and in-shoe pressure sensors were feasible for normal motions with a low speed
such as walking, although the lower extremity joints showed the strongest
correlation and overall the joint moments were associated with relatively smaller
correlation coefficients and larger normalized root mean squared errors in
comparison with the joint forces. The portability and mobility of this wearable
system can provide wide applicability in both clinical and sports motion analyses.
CI - Copyright (c) 2015 Elsevier B.V. All rights reserved.

Langue : ANGLAIS