Sedentary Patterns Are Associated with Bone Mineral Density and Physical Function in Older Adults: Cross-Sectional and Prospective Data.
Int J Environ Res Public Health
; 17(21)2020 11 06.
Article
em En
| MEDLINE
| ID: mdl-33171963
ABSTRACT
Aging causes some unfavorable morphological and functional changes, such as the decline in bone mineral density (BMD) and physical function. Moderate-to-vigorous physical activity (MVPA) and sedentary time seem to be related with these alterations, but the impact of distinct patterns remains unclear. The aim of this study was to cross-sectionally and prospectively assess the association between objectively measured MVPA and sedentary patterns (bouts and breaks) with BMD and physical function in older adults. The study considered 151 Brazilians (aged ≥ 60 years), out of which 68 participants completed 2-year follow-up measurements. MVPA and sedentary patterns were measured by means of accelerometry, BMD-(total proximal femur and lumbar spine (L1-L4)) by means of dual-energy X-ray absorptiometry (DXA), and physical function-by means of physical tests. In older women, sedentary bouts >60 min were inversely associated with handgrip strength (ß = -2.03, 95% CI from -3.43 to -0.63). The prospective analyses showed that changes in sedentary bouts (20 to 30 min and >60 min) were inversely associated with changes in the lumbar spine's BMD (ß = -0.01, 95% CI from -0.01 to -0.00 and ß = -0.03, 95% CI from -0.06 to -0.01) and the lumbar spine's T-score (ß = -0.06, 95% CI from -0.10 to -0.01 and ß = -0.27, 95% CI from -0.49 to -0.04), respectively. In older women, sedentary patterns are cross-sectionally associated with handgrip strength and prospectively associated with BMD independent of MVPA.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Densidade Óssea
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Comportamento Sedentário
Tipo de estudo:
Observational_studies
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Prevalence_studies
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Risk_factors_studies
Limite:
Aged
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Female
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Humans
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Male
País/Região como assunto:
America do sul
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Brasil
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article