• Sao Paulo Med J · Jul 2021

    Physical activity and sedentary behavior as multimorbidity discriminators among elderly Brazilians: a cross-sectional study.

    • Marina Christofoletti, Paula Fabrício Sandreschi, Emanuele Naiara Quadros, Eleonora d'Orsi, Cassiano Ricardo Rech, Sofia Wolker Manta, and BenedettiTânia Rosane BertoldoTRB0000-0002-2035-5082PhD. Full Professor, Department of Physical Education, Universidade Federal de Santa Catarina (UFSC), Florianópolis (SC), Brazil..
    • MSc. Doctoral Student, Department of Physical Education, Universidade Federal de Santa Catarina (UFSC), Florianópolis (SC), Brazil.
    • Sao Paulo Med J. 2021 Jul 1; 139 (4): 372379372-379.

    BackgroundAssociations between behaviors and individual chronic diseases have been demonstrated. However, the relationship between time spent on sedentary behavior and multimorbidity remains less clear.ObjectiveTo identify the predictive power of various intensities of physical activity versus sedentary behavior, as discriminatory factors for cardiometabolic multimorbidity (cardiovascular diseases and diabetes) in the elderly.Design And SettingCross-sectional study in different residential census tracts and residential households in Florianópolis (SC).MethodsThe participants were 425 elderly people (65% women) from the EpiFloripa Aging study in 2014. Sociodemographic variables and self-reported incidence of cardiovascular diseases and diabetes were obtained via a questionnaire. Light physical activity (LPA), moderate-to-vigorous physical activity (MVPA) and sedentary behavior (SB) were measured using accelerometers. The analyses were stratified according to sex and included a diagnosis for interpretation. Behaviors were taken into consideration if their predictive power in terms of area under the receiver operating characteristic (ROC) curve was greater than 0.50. The time cutoff point was defined from sensitivity and specificity.ResultsFor older adult men with diabetes, the predictive value of MVPA for absence of multi-morbidity was an area of 0.75 (95% confidence interval, CI: 0.538-0.962), and a cutoff of 17 minutes per day. Older adult women with diabetes had an area of 0.71 (95% CI: 0.524-0.866) and a cutoff of 10 minutes per day. LPA and SB did not present predictive values.ConclusionThe time spent on MVPA is a predictor of absence of multimorbidity in elderly people with diabetes, for both sexes.

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