Study on the aging change of postural control reaction time and movement time during adaptive balance
10.3969/j.issn.1001-1242.2024.05.010
- VernacularTitle:自主平衡恢复过程中姿势调控反应时与运动时的增龄性变化研究
- Author:
Yusheng WANG
1
;
Zishan JIA
;
Gongzi ZHANG
Author Information
1. 中国人民解放军总医院,北京市,100853
- Keywords:
support surface tilt stress;
adaptive equilibrium;
postural control;
reaction time;
movement time
- From:
Chinese Journal of Rehabilitation Medicine
2024;39(5):675-680,686
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observe the aging-related trends and age-sensitive changes in postural control reaction time(RT)and movement time(MT)during the adaptive balance after instability. Method:A total of 97 healthy adult subjects aged 20-79 were tested for posture control time using the DE-A somatosensory balance detection system.The test included postural adjustment RT and MT during the adaptive balance(e.g.forward,backward,left and right)tilts of the support surface under static and dynamic balance states.The subjects were sequentially divided into six age groups based on 10-year age intervals,with 16 in Group 1(20-29 years),10 in Group 2(30-39 years),17 in Group 3(40-49 years),18 in Group 4(50-59 years),31 in Group 5(60-69 years)and 5 in Group 6(70-79 years).The age-related trends and age-sensitive changes in postural control RT and MT were observed and analyzed. Result:The postural control RT and MT increased with age.In static balance,all RT and MT indicators were longer in group 6 than in groups 1 to 5,with significant differences compared with groups 1 to 4(P＜0.05)but no significant differences compared to group 5(P＞0.05).All RT and MT indicators were longer in group 5 than in groups 1 to 4,and there were significant differences(P＜0.05).All RT and MT indicators were lon-ger in group 4 than in groups 1 to 3,with a significant difference compared with group 1 in RT when the support surface was tilted to the right(P＜0.05),but no significant differences between groups for the remain-ing indicators(P＞0.05).All RT and MT indicators were longer in group 3 than in groups 1 to 2,with a sig-nificant difference compared with group 1 in MT when the support surface was tilted to the left(P＜0.05),but no significant differences between groups for the remaining indicators(P＞0.05).There was no significant difference(P＞0.05)between group 2 in all RT and in MT compared with group 1.In dynamic balance,all RT and MT indicators were longer in group 6 than in groups 1 to 5,with significant differences compared with groups 1 to 4(P＜0.05)but no significant differences compared with group 5(P＞0.05).All RT and MT indicators were longer in group 5 than in groups 1 to 4,but there were no significant differences(P＞0.05).All RT indicators were longer in group 4 than in groups 1 to 3,with no significant differences compared with group 1 in RT when the support surface was tilted to the left(P＞0.05),while there were significant dif-ferences between groups for the remaining RT indicators(P＜0.05).All MT indicators were longer in group 4 than in groups 1 to 3,with significant differences compared with group 2 in MT when the support surface was tilted to the back and left(P＜0.05),while there were no significant differences between groups for the remaining RT indicators(P＞0.05).All RT indicators were longer in group 3 than in groups 1 to 2,with no significant differences compared with group 1(P＞0.05).All MT indicators were longer in group 3 than in groups 1 to 2,with significant differences compared with group 1(P＜0.05).There was no significant differ-ence between group 2 in all RT and in MT compared with group 1(P＞0.05). Conclusion:The postural control RT and MT during the adaptive balance after instability gradually increase with aging.The deterioration of postural control response time and motion time in static balance may start to become evident around the age of 60,while in dynamic balance,these deteriorations may begin to appear around the ages of 50 and 40,respectively.
