老年人工具性生活活动能力水平与常速行走步态特征的关联分析OA北大核心CSTPCD

Objective To investigate the characteristics of gait parameters and their relationship with instrumental activity of daily living(IADL)in the older adults walking at normal speed.Methods From February to August 2023,older people aged 60 years and above in Beijing Hospital were selected for investigation by convenience sampling.General characteristics of the subjects and the IADL level were evaluated using questionnaire,and the multi-sensor wearable gait analyzer IDEEA was used to collect the gait parameters of the elderly while walking at normal speed.The association between gait parameters walking at normal speed and the risk of IADL impairment in the older people was analyzed using multivariate logistic regression model.Results The subjects were divided into two groups according to whether IADL was impaired or not,with 293 subjects in the IADL impaired group and 446 subjects in the normal group,aggregting to 739 subjects.Compared with the normal group,the spatiotemporal gait parameters such as speed,cadence and stride length were decreased,and the kinetic parameters such as thigh swing work,ground impact force and foot-off-ground angle were reduced,and gait cycle parameters such as single-leg support time increased in the IADL-impaired group,with a statistically significant difference(P＜0.05).Multivariate logistic regression analysis showed that cadence,step length,stride length,foot landing control and foot-off-ground angle were associated with IADL impairment(P＜0.05).In the age-stratified analysis,the correlation between gait characteristics and the risk of IADL impairment was more significant in the elderly population aged ≥70 years(P＜0.05).Conclusions Older individuals with impaired IADL demonstrate a decline in gait performance.Spatiotemporal gait parameters and kinetic parameters are closely related to IADL impairment in the older adults.