老年人下肢肌力、协调性和反应时的年龄特征相关性  

Age-related Analysis of Strength,Coordination and Reaction Time of Lower Extremity in Elderly

作　　者：王娜[1] 瓮长水[1] 朱才兴[1] 刘立明[1] 焦伟国[1] 王秋华[1] 郭燕梅[1] 

机构地区：[1]解放军总医院南楼临床部康复医学科,北京市100853

出　　处：《中国康复理论与实践》2011年第12期1155-1157,共3页Chinese Journal of Rehabilitation Theory and Practice

摘　　要：目的研究闭链动作下老年人下肢神经肌肉功能的年龄相关性。方法 45例符合入选条件的老年人分成60~69岁组、70~74岁组和75岁组,每组15例。应用功能性蹲屈测试系统（FSS）分别测试受试者下肢的等长肌力、反应时间和协调性。采集记录最大等长伸展肌力标准值、平均等长伸展肌力标准值、总体平均反应时间、平均偏移距离。结果经Pearson相关分析,年龄与各项指标均有显著相关性（P〈0.05~0.01）;经组间方差分析,协调性在各组人群中均无显著性差异;最大肌力标准值和平均肌力标准值在60~69组均优于其他两组（P〈0.05）;60~69岁组的总体平均反应时间优于75岁组（P〈0.05）;70~74岁组与75岁组各项指标均无显著性差异（P〉0.05）。结论老年人的下肢神经肌肉功能具有年龄相关性。Objective To study the relationship between age and lower limb neuromuscular function in elderly people under the closed chain environment.Methods 45 cases met the criteria for inclusion were divided into the 60~69 years group,70~74 years group,and ≥ 75 years group,15 patients in each group.With the Functional Squat Systems（FSS）,the subjects were measured isometric lower limb strength,reaction time and coordination.The maximum isometric extension strength standard value（MISS）,the average isometric extension strength standard value（AISS）,the overall average response time（OART）,the average migration distance（AMD） were recorded.Results With the Pearson＇s correlation analysis,the age significantly correlated with all the other indexes（P0.05~P0.01）.By analysis of variance（ANOVA）,coordination among people in each group were not significantly different,MISS and AISS in the 60~69 years group were both significantly better than the other two groups（P0.05）.OART in 60~69 years group was faster than ≥ 75 years group.There was no significant difference between the 70~74 years group and ≥ 75 years group.Conclusion The lower limb neuromuscular function in elderly showed age-related significance.

关 键 词：肌力 反应时间 协调性 老年人 

分 类 号：R493[医药卫生—康复医学]