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Submitted: 03 Aug 2020
Revision: 15 Oct 2020
Accepted: 18 Oct 2020
ePublished: 07 Feb 2021
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Health Promot Perspect. 2021;11(1): 109-114.
doi: 10.34172/hpp.2021.14
  Abstract View: 115
  PDF Download: 45

Short Communication

Association of mentally-passive and mentally-active sedentary behaviors with device-measured bouts and breaks of sedentary time
in adolescents

André O Werneck 1* ORCID logo, Marcelo Romanzini 2, Danilo R. Silva 3, Adewale L. Oyeyemi 4, Maria R. Bueno 2, Enio R. V. Ronque 2

1 Department of Nutrition, School of Public Health, Universidade de São Paulo (USP), São Paulo; Brazil
2 Physical Activity and Health Laboratory, Department of Physical Education, Universidade Estadual de Londrina, Londrina, Brazil
3 Departament of Physical Education, Universidade Federal de Sergipe - UFS, São Cristóvão, Brazil
4 Department of Physiotherapy, College of Medical Sciences, University of Maiduguri, Borno State, Nigeria

Abstract

Background: Our aim was to analyze the association of self-reported mentally-passive and
mentally-active sedentary behaviors with different patterns (bouts and breaks) of device-measured sedentary time in adolescents.
Methods: This was a cross-sectional study conducted among 375 adolescents (177 boys) aged 1015 years. Total time, bouts and breaks of sedentary time were measured through accelerometers. Self-reported sedentary behavior in different activities was summed and divided into mentally-active (playing electronic games, studying and reading) and mentally-passive (watching TV, watching DVD, and using computer for leisure). Bayesian linear regression models were used for association analyses.
Results: Only mentally-passive sedentary behaviors were positively associated with longer bouts
[1-4 minutes: mean posterior distribution: -0.431 (95% credible interval: -0.745 to -0.114); =15 minutes: 0.641 (0.122 to 1.222)] and lower number of breaks [-0.138 (-0.228 to -0.044)] of device-measured sedentary time.
Conclusion: Self-reported mentally-passive sedentary behaviors are associated with longer
bouts and lower breaks of device-measured sedentary time.
Keywords: Exercise, Sedentary lifestyle, Accelerometry, Adolescent, Sitting position
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