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目的:研究中老年人静止站立时平衡机能的年龄和性别特征。方法:以南京市50岁以上男、女居民622人为对象,使用Tetrax平衡仪测试受试者睁眼双脚静止站立时的一般稳定性指数、姿势摆动的频谱分析、体重分布、同步性等指标。结果:(1)男性不同年龄组之间静止站立时的平衡机能测试值无明显差异(P>0.05),70岁以上老年女性在一般稳定性指数、姿势摆动强度以及同步性等指标上明显差于相同性别50~59岁及60~69岁年龄组(P<0.01)。(2)女性70岁以上者站立时体重分布偏向右后方,相关指标与女性50~59岁及60~69岁年龄组相比均有明显差异(P<0.05或P<0.01)。(3)70岁以上女性平衡机能测定值明显差于同龄男性(P<0.05或P<0.01),但是50~69岁同龄男、女之间未见明显差异。结论:男性中老年群体中未见平衡机能随年龄下降现象,女性在70岁以后平衡机能出现较大幅度的下降。
Objective: To study the age and gender characteristics of balance function of the elderly in standing still. Methods: A total of 622 men and women over 50 years old in Nanjing were enrolled in this study. The general stability index, spectrum analysis of posture swing, body weight distribution, synchronization and other indexes were measured with Tetrax balance instrument . Results: (1) There was no significant difference in the balance function test between men standing in different age groups (P> 0.05). The age stability of 70-year-old women was significantly lower than that of general stability index, posture swing strength and synchronicity The same sex 50 ~ 59 years old and 60 ~ 69 age group (P <0.01). (2) The body weight distribution of women over 70 years old tends to the right and rear, and the relevant indexes are significantly different from those of women aged 50-59 and 60-69 (P <0.05 or P <0.01). (3) The balance function of women over 70 years old was significantly lower than that of men of the same age (P <0.05 or P <0.01), but there was no significant difference between men and women of the same age of 50-69 years. Conclusion: There is no balance function decline with age in the middle-aged and elderly men. The balance function of women after 70 years of age shows a significant decrease.