Abstract: Objective: To explore the relationship of frailty level and gait performance in community-dwelling aged.Methods: A total of 191 aged over 65 years were included by convenience sampling, and divided into frail group (n=16), pre-frail group (n=111) and non-frail group (n=64) according to Simple Frailty Questionnaire (FRAIL) score. The demographic features was assessed with demographic characteristic questionnaire, cognitive function was assessed with the Mini-Mental State Examination (MMSE), and gait parameters were measured by IDEEA LifeGait. Results: The speed, step length, step frequency and stride time were statistically significant different between frail group and non-frail group (P<0.05). There was statistically significant difference in step length and speed between frail group and pre-frail group (P<0.05). There was no statistically significant difference in speed, stride time, step frequency, and step length between non-frail group and pre-frail group (P>0.05). Conclusions: The Characteristics of normal walking gait are different across frailty level. The higher the frailty, the worse the gait among the aged in community.

Key words: aged; non-frail; pre-frail; frail; gait