Correlation of functional mobility with handgrip strength, functional capacity for instrumental activities of daily living, fear of falling and number of falls in community-dwelling elderly

Abstract

Introduction: Functional mobility is essential for quality life and its worsening is the first sign of functional decline in the elderly. Objective: To assess the correlation of functional mobility with handgrip strength (HGS), functional capacity for IADL (FC-IADL) and fear of falling and number of falls in community-dwelling elderly. Method: A cross-sectional study was conducted with 303 community-dwelling elderly of both sexes, in Juiz de Fora (MG, Brazil). Functional mobility (TUG), HGS (dynamometer, JAMAR), FC-IADL (Lawton and Brody Scale), fear of falling (FES-I-Brazil) and number of falls were assessed. The data were analyzed using Pearson’s correlation test, and significance was established at ≤ 5%. Results: The elderly studied consisted of 61.7% females, were 73.5 ± 7.8 years old and had little schooling (4.3 ± 3.5 years). Functional mobility showed a moderate correlation with HGS (r = -0.383 and r = -0.322; women and men respectively) and FC-IADL (r = -0.568 and r = -0.583) in both sexes and fear of falling (r = 0.511) in females, a weak correlation with fear of falling in males (r = 0.243) and number of falls in both sexes (r = 0.101 and r = 0.195). Conclusion: Functional mobility showed a moderate correlation with HGS and FC-IADL in both sexes and fear of falling in females. It showed a weak correlation with fear of falling in males and number of falls in both sexes. The overestimated self-efficacy to prevent falls in men and the protective role of fear of falling in individuals with functional mobility limitations may explain these findings.