Sedentary behavior, physical activity and body composition in adults.

Autor:	Ferrari GLM; Laboratorio de Ciencias de la Actividad Física, el Deporte y la Salud, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, USACH, Santiago, Chile.; Disciplina de Alergia, Imunologia Clínica e Reumatologia do Departamento de Pediatria da Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brasil., Victo ER; Disciplina de Alergia, Imunologia Clínica e Reumatologia do Departamento de Pediatria da Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brasil., Kovalskys I; Commitee of Nutrition and Wellbeing, International Life Science Institute, Buenos Aires, Argentina., Mello AV; Departamento de Nutrição, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brasil., Previdelli AN; Faculdade de Ciências Biológicas e da Saúde, Universidade São Judas Tadeu, São Paulo, SP, Brasil., Solé D; Disciplina de Alergia, Imunologia Clínica e Reumatologia do Departamento de Pediatria da Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brasil., Fisberg M; Instituto Pensi, Fundação Jose Luiz Egydio Setubal, Hospital Infantil Sabará, São Paulo, SP, Brasil.
Jazyk:	angličtina
Zdroj:	Revista da Associacao Medica Brasileira (1992) [Rev Assoc Med Bras (1992)] 2020 Mar; Vol. 66 (3), pp. 314-320.
DOI:	10.1590/1806-9282.66.3.314
Abstrakt:	Objective: We investigated the associations between objectively assessed sedentary behavior (SB) and moderate-to-vigorous physical activity (MVPA) and body composition variables among a representative sample of Brazilian adults. Methods: Using an accelerometer, SB and MVPA were monitored for at least 5 days in 524 participants (261 men; age, 18-65 years). Each minute epoch was classified as sedentary or spent in light, moderate, or vigorous physical activity (LPA, MPA, and VPA, respectively). The measured body composition variables included abdominal perimeter (AP) and neck circumference (NC). Results: Men accumulated significantly more min/day of MPA (37.82 versus 27.28), VPA (1.10 versus 0.31), MVPA (39.02 versus 27.61), and steps/day (14,978 versus 13,443) than women (p<.001). In men, MPA, VPA, MVPA, and steps/day were negatively associated with AP (p<.05) independently of SB. Only VPA was significantly associated with NC (β= 0.113; p=.002). In women, only SB was significantly associated with AP (β= 0.003; p=.031). There were no significant associations between physical activity intensities and body composition in women. Conclusions: Our findings on the unequal association of physical activity with body composition variables between sexes can help inform future intervention strategies in Brasil.
Databáze:	MEDLINE
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