Article

Body rotation is associated with many activities. The concomitant movement of the
center of mass (COM) is essential for effective body rotation. This movement is
considered to be influenced by kinematic changes in the spine, pelvis, and hip
joints. However, there is no research on the association between COM movement and
kinematic changes during body rotation. We aimed to investigate the association
between COM movement and the kinematics of the spine, pelvis, and hip joints
during body rotation in standing. Twenty-four healthy men were included in the
study. COM movement during active body rotation in a standing position was
measured. We evaluated pelvic shift and changes in the angles of the spine,
pelvis, and hip joints. We calculated the Pearson correlation coefficients to
analyze the relationship between COM movement and kinematic changes in the spine,
pelvis, and hip joints. There were significant correlations between lateral COM
movement to the rotational side and pelvic shift to the rotational side, and
between posterior COM movement and pelvic shift to the posterior side. In
addition, lateral COM movement to the rotational side showed significant and
negative correlation with spinal flexion and was significantly and positively
correlated with the change in anterior pelvic tilt. Clinicians need to take
particular note of both spinal and pelvic motion in the sagittal plane, as well
as the pelvic shift, to speculate COM movement during body rotation in standing.
CI - Copyright (c) 2013 Elsevier B.V. All rights reserved.

Langue : ANGLAIS