Relationship between physical activity, body posture and morbidity risk in the elderly population [version 2; peer review: awaiting peer review]

Background Physical activity plays a crucial role in the health and well-being of older adults, positively influencing various aspects of their quality of life. This study aims to explore the relationship between physical activity and body segments, as well as the risk indices of non-communicable chronic diseases in healthy elderly individuals. Methods The analyzed variables include weekly physical activity, the Postural Correction Index (PCI), measured using the system developed by Portland State University (PSU), and predictors of non-communicable chronic diseases assessed through body mass index (BMI) and waist-to-hip ratio. Results The results reveal a moderate positive relationship between physical activity and the PCI ( r=0.45; p≤0.05), with significant correlations in specific components of the PCI, such as thoracic depression ( r=0.51; pr=0.51; pr=0.53; p Conclusions It is concluded that physical activity has a significant positive impact on the posture of older adults, particularly in the trunk, contributing 40% to the improvement of PCI components. The PCI values obtained, exceeding 84.67 in men and 82.67 in women according to the PSU evaluation, underscore the effectiveness of physical activity in postural correction and the prevention of issues associated with chronic diseases.