高齡者阻力訓練行為之盛行率、行為改變階段與慢性疾病風險之研究

The study aimed to describe the prevalence of meeting moderate-to-vigorous-intensity physical activity (MVPA), muscle-strengthening (MS) activities, and television (TV) viewing guidelines and their association with sociodemographic factors. Data from older adults aged 65 or above (n=3,282) were collected through telephone interviews. The prevalence of meeting MVPA, MS activities, both MVPA and MS activities guidelines; and excessive TV viewing were calculated. We also investigated their associations with sociodemographic variables using logistic regression analyses. A total of 1,068 older adults (response rate: 32.5%) participated in the present study. 79.4% met the MVPA guidelines (150 minutes weekly), 25.3% met the MS guidelines (twice a week), 22.4% met both MVPA and MS guidelines, and 53.1% engaged in excessive TV viewing (more than or equal to two hours per day). It is worth noted that 58.1% of Taiwanese older adults were in “Precontemplation” of engaging in MS activities, which means no intention to do any MS activities according to “Transtheoretical model”. These older adults were more likely to have higher risks of Hypertension and Type 2 diabetes in comparison of those in “Maintenance”. Overall, in old age, low educational level was associated with lower odds of meeting MVPA, MS activities, and both MVPA and MS activities guidelines; while living alone and having no full-time job had higher odds of excessive TV viewing. A large number of older adults do not meet the MS recommendations, but are engaged in excessive TV viewing. Our findings may be important for public health interventions to promote ST and avoid excessive TV viewing, especially for at-risk subgroups.