Department of Physical Therapy, Panuska College of Professional Studies, The University of Scranton, 800 Linden St, Scranton, PA 18510, United States.
Gait Posture. 2014 Sep;40(4):493-8. doi: 10.1016/j.gaitpost.2014.06.001. Epub 2014 Jun 16.
The purpose of this study was to compare the kinematics of the shoulder and pelvis based on range of motion (ROM), angular velocity, and relative phase (RP) values during trunk axial rotation. Nineteen subjects with recurrent low back pain (LBP) and 19 age-matched control subjects who are all right limb dominant participated in this study. All participants were asked to perform axial trunk rotation activities at a self-selected speed to the end of maximum range in a standing position. The outcome measures included ROM, angular velocity, and RP on the shoulder and pelvis in the transverse plane and were analyzed based on the demographic characteristics between groups. The LBP group demonstrated decreased ROM (p=0.02) and angular velocity (p=0.02) for the pelvis; however, there was no group difference for the shoulder girdle. The ROM difference between the shoulder and pelvic transverse planes had a significant interaction with age (F=14.75, p=0.001). The LBP group demonstrated a higher negative correlation between the shoulder (r=-0.74, p=0.001) and pelvis (r=-0.72, p=0.001) as age increased while no significant correlations were found in the control group. The results of this study indicated that there was a difference in pelvic rotation in the transverse plane between groups during axial trunk rotation. It would be important to coordinate postural stability between the shoulder and pelvic girdles during ambulation; however, the pattern of trunk movement decreased with age due to possible pelvic stiffness in subjects with recurrent LBP. Therefore, improved pelvic flexibility for coordinated trunk movement patterns would help subjects with recurrent LBP.
本研究旨在比较基于运动范围（ROM）、角速度和相对相位（RP）值的肩部和骨盆在躯干轴向旋转时的运动学。19 名复发性腰痛（LBP）患者和 19 名年龄匹配的右利手对照组受试者参加了这项研究。所有参与者被要求在站立位以自我选择的速度进行轴向躯干旋转活动，直至达到最大范围的末端。结果测量包括肩部和骨盆在横平面上的 ROM、角速度和 RP，并根据组间的人口统计学特征进行分析。LBP 组表现出骨盆 ROM（p=0.02）和角速度（p=0.02）的减少；然而，肩部没有组间差异。肩部和骨盆横平面之间的 ROM 差异与年龄有显著的交互作用（F=14.75，p=0.001）。LBP 组表现出随着年龄的增长，肩部（r=-0.74，p=0.001）和骨盆（r=-0.72，p=0.001）之间的负相关显著增加，而对照组则没有显著相关性。本研究结果表明，在轴向躯干旋转过程中，肩部和骨盆在横平面上的旋转存在组间差异。在步行时协调肩部和骨盆的姿势稳定性非常重要；然而，由于复发性 LBP 患者可能存在骨盆僵硬，随着年龄的增长，躯干运动的模式会减少。因此，改善骨盆的灵活性以协调躯干运动模式将有助于复发性 LBP 患者。
