Hwang Jaejin, Jung Myung-Chul
a Ajou University , South Korea.
Int J Occup Saf Ergon. 2015;21(2):173-86. doi: 10.1080/10803548.2015.1029301.
This study investigated the effects of age and sex on joint ranges of motion (ROMs) and motion patterns. Forty participants performed 18 motions using eight body segments at self-selected speeds. Older subjects showed smaller ROMs than younger subjects for 11 motions; the greatest difference in ROM was 44.9% for eversion/inversion of the foot. Older subjects also required more time than younger subjects to approach the peak angular velocity for six motions. In contrast, sex significantly affected ROMs but not motion patterns. Male subjects exhibited smaller ROMs than female subjects for four motions; the greatest sex-dependent difference in ROM was 29.7% for ulnar/radial deviation of the hand. The age and sex effects depended on the specific segments used and motions performed, possibly because of differences in anatomical structures and frequencies of use of the joints in habitual physical activities between the groups.
本研究调查了年龄和性别对关节活动范围（ROM）及运动模式的影响。40名参与者以自我选择的速度使用八个身体部位进行18项动作。在11项动作中，老年受试者的ROM小于年轻受试者；足部外翻/内翻的ROM差异最大，为44.9%。在6项动作中，老年受试者达到峰值角速度所需的时间也比年轻受试者长。相比之下，性别对ROM有显著影响，但对运动模式没有影响。在4项动作中，男性受试者的ROM小于女性受试者；手部尺侧/桡侧偏斜的ROM中最大的性别差异为29.7%。年龄和性别效应取决于所使用的特定身体部位和所进行的动作，这可能是由于两组之间习惯性体育活动中关节的解剖结构和使用频率不同所致。
