Resumo
Introduction: Worldwide, elderly people fail to meet minimum physical activity requirements for their age group, increasing the risks of cardiovascular disease, metabolic disorders, osteoporosis, obesity, and muscle weakness. Age-related decline and comorbidities further compromise aerobic capacity. Purpose: To assess aerobic capacity and physical activity levels in older adults participating in a physical activity program, to analyse the relationship between aerobic capacity and physical activity levels, and to examine the association between these measures and individual characteristics. Methods: A cross-sectional analytical study was carried out (Ethics approval no. CE/IPSN/CESPU-27/22) in a sample of 60 older adults (mean age 71.7 (3.87) years) enrolled in a physical activity program. Participants characteristics were collected by questionnaire; physical activity level were evaluated with the Brief Physical Activity Assessment Tool (n=27) and aerobic capacity by the Six Minute Walk Test (n=60). Data was analysed using Mann-Whitney U, Spearman correlation, independent t-test and chi-square tests, with a 95% confidence interval. Results: Participants had an aerobic capacity lower than predicted values (476.3m vs 514.1m). Fourteen participants were insufficiently active. No association was found between aerobic capacity and physical activity levels (p=0.752). Younger age and earlier retirement were independently associated with higher aerobic capacity (p=0.001 and p=0.003, respectively), with younger age also linked to greater physical activity level (p=0.048). Conclusion: Participants had below-predicted aerobic capacity, with most being insufficiently active. No association was found between physical activity levels and aerobic capacity. Younger age correlated with both higher aerobic capacity and physical activity levels, and earlier retirement with higher aerobic capacity
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