Different coordination and flexibility of the spine and pelvis during lateral bending between young and older adults

Human Movement Science
Paul S Sung

Abstract

This study examined coordination of the spine and pelvis during lateral bending of the trunk in older adults. Thirty-four healthy subjects (17 young and 17 older adults) demonstrated lateral bending at a controlled speed while holding a bar at approximately 180 degrees of shoulder flexion. Kinematic data collection was completed on the thoracic spine, lumbar spine, and pelvis. The coupling angle was calculated to examine the thorax-lumbar, lumbar-pelvis, and thorax-pelvis coordination patterns. The older adults demonstrated a reduced range of motion (ROM) of the lumbar spine, while both groups revealed similar ROM in the thorax and in the pelvis. The coupling angle between the straightening and bending phases was different only for the older adults in the thorax-lumbar (23.4±8.0 vs. -1.6±4.4, p=0.004) and the lumbar-pelvis (65.4±7.2 vs. 86.1±7.8, p=0.001) coordination. However, there was no group difference in the thorax-pelvis coordination. These findings indicate that age-related changes in the lumbar region affect coordination patterns only during the bending phase. The older adults preserved a similar pattern of movement to the young adults during the straightening phase, but the coordination variability of the coupling ang...Continue Reading

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Citations

Jun 21, 2017·Sports Biomechanics·Tomoya TakabayashiMasayoshi Kubo
Oct 13, 2017·Journal of Foot and Ankle Research·Tomoya TakabayashiMasayoshi Kubo
Oct 29, 2020·Somatosensory & Motor Research·Frederic J F ViseuxAntoine Lemaire

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