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Open AccessArticle

Time Spent in Sedentary Behaviour as Discriminant Criterion for Frailty in Older Adults

1
Center for Research in Physical Activity & Health, Federal University of Triangulo Mineiro, Uberaba MG 38061-500, Brazil
2
Department of Education, State University of Bahia, Teixeira de Freitas 45992-255, Brazil
3
Department of Health, Southwestern State University of Bahia, Jequié 45206-190, Brazil
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(7), 1336; https://doi.org/10.3390/ijerph15071336
Received: 11 May 2018 / Revised: 14 June 2018 / Accepted: 14 June 2018 / Published: 26 June 2018
(This article belongs to the Collection Sedentary Behaviour and Health)
This paper aims to analyse whether time spent in sedentary behaviour was a discriminant criterion for frailty in older adults. This was a cross-sectional study conducted in a sample of 457 elderly individuals aged ≥60 years. Frailty was defined as the presence of three or more of the following criteria: Unintentional weight loss, low walking speed at a 4.57 m course, reduced manual grip strength, exhaustion and insufficient physical activity level. Participants were classified into two groups: Non-frail or frail. Exposure to sedentary behaviour was assessed by the time spent sitting during a typical week, according to the adapted version of the International Physical Activity Questionnaire. Descriptive (mean, frequency) and inferential statistics (Poisson regression, Pearson’s Chi-square, Receiver Operating Characteristic Curve) were used to analyse the data, comparing them to the time-related areas exposed to sedentary behaviour by gender and the presence of fragility. The prevalence of frailty was 22.1% (n = 101). The most accurate cut-off points of sitting time for predicting frailty were >495 min/day (men) or >536 min/day (women). Time spent in sedentary behaviour can be used to indicate fragility in the elderly of both sexes. View Full-Text
Keywords: sedentary behaviour; frailty; roc curve sedentary behaviour; frailty; roc curve
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Da Silva, V.D.; Tribess, S.; Meneguci, J.; Sasaki, J.E.; Santos, D.D.A.T.; Carneiro, J.A.O.; Virtuoso Júnior, J.S. Time Spent in Sedentary Behaviour as Discriminant Criterion for Frailty in Older Adults. Int. J. Environ. Res. Public Health 2018, 15, 1336.

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