Standing Posture Control in Chinese Adults: Age and Gender Differences

中國人不同年齡與性別在站立姿勢控制之差異

林桑伊(Sang-I Lin) ； 林瑞模(Reuy-Mo Lin)

《中華民國物理治療學會雜誌》 24卷3期 (1999/05) Pp. 174-182

https://doi.org/10.29616/JPTAROC.199905.0002

摘要

隨著年齡老化，站立姿勢控制也會隨之改變，本研究之目的在探討中國人在老化後，其站立控制是否與年輕人相異，而性別不同是否對老人之姿勢控制有所影響。共有17名健康老人（女=8，男=9）及17名年輕人（女=9，男=8）參與本研究，受試者赤足站在力板上依序進行靜止站立睜眼(QSEO)與閉眼(QSEC)，雙腳併攏站立睜眼與閉眼及睜眼雙腳一前一後站立(TS)，每個動作維持20秒，分析其足底壓力中心(COP)之位移範圍、速度、平方根平均值及位移路徑長度。結果發現就女性而言，老年人在QSEO及QSEC時其左COP之位移速度，在QSEC之左右平方根平均值，以及在TS之左右位移範圍較年輕人大。相反的，年老男性在TS時之位移路徑長度及速度較年輕男性小，另外在TS及QSEC，男性之COP動作較女性大，但年輕女性則在QSEO時較年輕男性有較大之COP動作。本研究結果顯示站立姿勢的老化隨性別的不同而可能有不同變化，因此未來有關老年人姿勢控制的研究應可針對不同性別老人，以探索其確切之姿勢控制。

關鍵字

姿勢控制 ； 老年人 ； 足底壓力中心 ； 性別

並列摘要

Aging is likely to be accompanied by changes in postural control and these changes might be gender related. The purpose of this study was to investigate the standing postural control of Chinese adults in relation to age and gender. Seventeen healthy older (female=8, male=9) and young (female=9, male=8) adults participated in the study. The subjects stood barefoot on a force platform and perform, sequentially, quiet stance with eyes open (QSEO) and eyes closed (QSEC), Romberg stance with eyes open and eyes closed, and tandem stance (TS) for 20 sec each task. The trajectory of the center of pressure (COP) on the transverse plane, and the range of displacement, velocity, and root mean square (RMS) of the COP on the mediolateral (ML) and anteroposterior (AP) planes were examined. It was found that, compared to young adults, older females had significantly smaller ML RMS in QSEC, velocity in QSEO and range in TS, while older males were found to show greater trajectory and velocity in TS. Males were found to have greater ML velocity in QSEC, and greater trajectory, ML range, and velocity in TS. In QSEC, the ML range and velocity were greater in females than males. These findings indicated that aging did not have consistent effect on older adults of different genders. Future studies on aging postural control should take into account of the gender effects.

並列關鍵字

Postural control ； Aging ； Center of pressure ； Gender