| Keywords |
Physical activity; Sedentary behavior; Falls; Muscle strength; Mobility |
| Abstract |
The purpose of this study was to identify the relationship between falls, muscle strength, and mobility according to physical activity and sedentary behavior, and to determine whether fall risks, muscle strength, and mobility can be predicted through physical activity and sedentary behavior of older adults living in the community. 70 men and women aged 60-90 years old participated in this experiment. Physical activity and sedentary behavior were assessed through the International Physical Activity Questionnaire (IPAQ), and a fall frequency survey was conducted over the last year. Muscle strength was measured by grip strength and pinch force, respectively, and mobility was evaluated by the Timed Up and Go test. For statistical analysis, first, Pearson's correlation analysis was performed to select potential predictors, and then the selected predictors were selectively inserted into the regression model to perform a stepwise multiple regression analysis, where gender was included as a moderator variable. As a result of the study, physical activity was related to fall frequency and mobility (p<.05), and sedentary behavior was related to fall frequency (p<.05).
On the other hand, physical activity, sedentary behavior and muscle strength were not related (p>.05). The main predictor affecting fall frequency was sedentary activity (SA) (16.7%), and the main predictor affecting mobility was total physical activity (TPA) (14.5%). In other words, the longer the SA was, the higher the risk of falls, and the more TPA was, the better the mobility. Therefore, minimizing sedentary behaviour and increasing physical activity time can help prevent falls and maintain mobility in older adults regardless of gender. |