Helen Rocha Machado, Lucas Lima Galvão, Rizia Rocha-Silva, Jorge Lopes Cavalcante Neto, Jair Sindra Virtuoso Junior, Sheilla Tribess, Ricardo Borges Viana, Claudio Andre Barbosa de Lira, Douglas de Assis Teles Santos
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引用次数: 0
Abstract
Aim: We aim the isolated and combined effects of sedentary behaviour exposure time and physical activity levels on muscle strength in older adults.
Design: This prospective observational cohort study, analytical in nature, using exploratory survey methods and physical performance testing. With 5-year longitudinal follow-up (2015-2020).
Methods: A total of 459 older adults participated in the baseline, with a total of 224 being included/located again in the follow-up. We evaluate muscle strength using handgrip tests and sit-to-stand tests. The international physical activity questionnaire was used to measure physical activity and sedentary behaviour. Generalised Estimation Equations tested both independent and combined effects, reporting results as β coefficients and confidence intervals.
Results: Older adults exhibiting low sedentary behaviour displayed enhanced handgrip strength compared to those with high sedentary behaviour. Notably, older adults who were sufficiently active with low sedentary behaviour, sufficiently active with high sedentary behaviour, and insufficiently active with low sedentary behaviour showed increased handgrip strength compared to their counterparts who were insufficiently active with high sedentary behaviour. This trend was consistent for lower limb strength.
Conclusion: Interventions that encourage a reduction in sedentary behaviour and an increase in physical activity are essential to maintain muscle strength among older adults.
Implications for practice: The findings of this study underscore the importance of addressing both sedentary behaviour and physical activity levels in clinical interventions aimed at preserving muscle strength in older adults. Routine assessments of physical activity and sedentary behaviour could help tailor personalised exercise programs, potentially enhancing functional independence and reducing the risk of frailty and disability in older patients.
Patient or public contribution: Patients were involved in the sample of the study.
Reporting method: This study was conducted in accordance with the Strengthening Research in Observational Studies in Epidemiology (STROBE) guidelines.
期刊介绍：
The Journal of Clinical Nursing (JCN) is an international, peer reviewed, scientific journal that seeks to promote the development and exchange of knowledge that is directly relevant to all spheres of nursing practice. The primary aim is to promote a high standard of clinically related scholarship which advances and supports the practice and discipline of nursing. The Journal also aims to promote the international exchange of ideas and experience that draws from the different cultures in which practice takes place. Further, JCN seeks to enrich insight into clinical need and the implications for nursing intervention and models of service delivery. Emphasis is placed on promoting critical debate on the art and science of nursing practice.
JCN is essential reading for anyone involved in nursing practice, whether clinicians, researchers, educators, managers, policy makers, or students. The development of clinical practice and the changing patterns of inter-professional working are also central to JCN''s scope of interest. Contributions are welcomed from other health professionals on issues that have a direct impact on nursing practice.
We publish high quality papers from across the methodological spectrum that make an important and novel contribution to the field of clinical nursing (regardless of where care is provided), and which demonstrate clinical application and international relevance.
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