| Keywords |
Cognitive function ; Femur bone mineral density ; Health-related fitness ; Elderly women |
| Abstract |
This study investigated the association of bone mineral density (BMD) and health-related fitness levels with cognitive function on 164 elderly women. Body composition and BMD parameters were measured by dual-energy X-ray absorptiometry (DXA). Korean version of mini-mental state examination of dementia screening (MMSE-DS) was used to assess cognitive performance. Senior fitness test was measured according to standardized protocol. Pearson correlation analyses were used to calculate bivariate correlations between variables. Subjects were classified four groups based on femur BMD and physical fitness (PF) levels. Logistic regression analyses were used to determine the odds ratio (OR) for having cognitive impairment. MMSE-DS was associated with whole body BMD (r=.201, p=.010), femur BMD(r=.271, p<.001), upper body muscle endurance (r=.267, p<.001), lower body muscle endurance (r=.228, p=.004), upper body flexibility (r=.271, p<.001), lower body flexibility (r=.205, p=.009), and cardiorespiratory endurance (r=.265, p=.001). Compared to the high BMD + high PF group (reference), the low BMD + high PF (OR=3.509, p=.048), high BMD + low PF (OR=4.454, p=.017), and low BMD + low PF groups (OR=4.981, p=.010) have a higher OR for cognitive impairment. The findings of this study suggest that promoting higher BMD and health-related fitness via an outdoor physical activity, regular exercise, and health diet should be key components of against cognitive decline in elderly women. |