The influence of obesity on falls and quality of life

OBJECTIVE To determine (1) whether obese older adults had higher prevalence of falls and ambulatory stumbling, impaired balance and lower health-related quality of life (HRQL) than their normal weight counterparts, and (2) whether the falls and balance measures were associated with HRQL in obese adults. METHODS Subjects who had a body mass index (BMI) greater than 30 kg/m2 were classified into an obese group (n = 128) while those with BMI between 18.5 and 24.9 kg/m2 were included into a normal weight group (n = 88). Functional tests were performed to assess balance, and questionnaires were administered to assess history of falls, ambulatory stumbling, and HRQL. RESULTS The obese group reported a higher prevalence of falls (27% vs. 15%), and ambulatory stumbling (32% vs. 14%) than the normal weight group. Furthermore, the obese group had lower HRQL, (p < or = 0.05) for physical function (63 +/- 27 vs. 75 +/- 26; mean +/- SD), role-physical (59 +/- 40 vs. 74 +/- 37), vitality (58 +/- 23 vs. 66 +/- 20), bodily pain (62 +/- 25 vs. 74 +/- 21) and general health (64 +/- 19 vs. 70 +/- 18). In the obese group, a history of falls was related (p < or = 0.05) to lower scores in 4 domains of HRQL, and ambulatory stumbling was related (p < or = 0.01) to 7 domains. CONCLUSION In middle-aged and older adults, obesity was associated with a higher prevalence of falls and stumbling during ambulation, as well as lower values in multiple domains of HRQL. Furthermore, a history of falls and ambulatory stumbling were related to lower measures of HRQL in obese adults.