CAJ | 학술논문

目的：应用最大重心-压力中心倾角法比较青、中、老年人群静态平衡能力差异及特征。方法使用三维运动捕捉系统及测力台，采集15名青年人(18~40岁)、10名中年人(41~65岁)及12名老年人(>65岁)在睁眼双足站立、闭眼双足站立、睁眼单足站立及闭眼单足站立4种状态下的重心及压力中心数据，计算其在矢、冠状面上的重心-压力中心倾角，以各组平均峰值进行统计分析。结果在睁眼双足站立及闭眼单、双足站立3种状态下，不同年龄段人群在矢、冠状面的倾角均无显著性差异(P>0.05)；而在睁眼单足站立时，青、中年组与老年组间，在矢、冠状面的倾角均有显著性差异(P<0.05)。结论睁眼单足站立下的最大重心-压力中心倾角可以敏感地检测出老年人群的平衡功能衰退，有望为临床静态平衡提供一种新的静态平衡评估指标。
목적：응용최대중심-압력중심경각법비교청、중、노년인군정태평형능력차이급특정。방법사용삼유운동포착계통급측력태，채집15명청년인(18~40세)、10명중년인(41~65세)급12명노년인(>65세)재정안쌍족참립、폐안쌍족참립、정안단족참립급폐안단족참립4충상태하적중심급압력중심수거，계산기재시、관상면상적중심-압력중심경각，이각조평균봉치진행통계분석。결과재정안쌍족참립급폐안단、쌍족참립3충상태하，불동년령단인군재시、관상면적경각균무현저성차이(P>0.05)；이재정안단족참립시，청、중년조여노년조간，재시、관상면적경각균유현저성차이(P<0.05)。결론정안단족참립하적최대중심-압력중심경각가이민감지검측출노년인군적평형공능쇠퇴，유망위림상정태평형제공일충신적정태평형평고지표。
Objective To compare the difference of static balance ability in different aged people, with the maximum angle of center of mass (COM) and center of pressure (COP). Methods 37 healthy people without cardiovascular and cerebrovascular diseases including 15 young people (18~40 years old), 10 middle age people (41~65 years old) and 12 old people (>65 years old) participated in this study. The maximum angle of COM-COP and the corresponding envelope areas were recorded in 4 standing posture:natural standing, close eyes stand-ing, single leg standing and single leg standing with eyes closed. Results There was no significant difference in the maximum angle of COM-COP among 3 groups in 3 states (nature standing, close eyes standing, single leg standing with eyes closed) (P>0.05), but there was significant difference in the state of single leg standing (P<0.05) between the young and the old, and the middle-aged and the old. Conclu-sion The maximum angle of COM-COP in the state of single leg standing can sensitively detect the deterioration of stability of older people. It may be a new index of static balance in clinic.