Can Replacing Sitting Time with Standing Time Improve Adolescents’ Cardiometabolic Health?

Bruno P. Moura, Rogério L. Rufino, Ricardo C. Faria, Jeffer E. Sasaki and Paulo Roberto S. Amorim
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Bruno P. Moura: Medical Science Graduate Program, Medical Sciences Faculty, Rio de Janeiro State University, Rio de Janeiro 20550-170, Rio de Janeiro, Brazil
Rogério L. Rufino: Medical Science Graduate Program, Medical Sciences Faculty, Rio de Janeiro State University, Rio de Janeiro 20550-170, Rio de Janeiro, Brazil
Ricardo C. Faria: Department of Physical Education, Viçosa Federal University, Viçosa 36570-900, Minas Gerais, Brazil
Jeffer E. Sasaki: Graduate Program in Physical Education, Federal University of Triângulo Mineiro, Uberaba 38025-180, Minas Gerais, Brazil
Paulo Roberto S. Amorim: Department of Physical Education, Viçosa Federal University, Viçosa 36570-900, Minas Gerais, Brazil

IJERPH, 2019, vol. 16, issue 17, 1-10

Abstract: This study aimed to assess the effects of isotemporal replacement of sitting time (SIT) with standing (STA) on cardiometabolic biomarkers. In this cross-sectional study, male adolescents wore the GT3X+ activity monitor for 7 days to measure the SIT and STA. Moderate-to-vigorous physical activity (MVPA) was estimated by a youth-specific cut-off point. An isotemporal substitution approach was used to examine the effects of replacing different periods of SIT (15, 30, 60, and 120 min) with STA on cardiometabolic biomarkers [total cholesterol (TC), high-density lipoprotein cholesterol (HDL-c), non-HDL-c, low-density lipoprotein cholesterol (LDL-c), triglycerides (TG), glucose, insulin, HOMA2-β, HOMA2-S, and HOMA2-IR]. Analysis of covariance (ANCOVA) with a post-hoc Bonferroni test was used to compare the adjusted means between the four subgroups that were clustered according to SIT and STA amount. Adolescents (n = 84; age, 16.7 ± 0.9 years) wore GT3X+ for 15.2 ± 2.3 h, for 6.7 ± 0.6 days. Isotemporal substitution of SIT with STA was associated with TC, non-HDL-c, LDL-c, and TG. ANCOVA results showed a statistically significant difference for TC, non-HDL-c, and LDL-c. These findings showed that for male adolescents, sitting less and standing more may be an effective alternative to reduce cardiometabolic biomarker levels related to lipid metabolism, regardless of MVPA.

Keywords: inclinometer; actigraphy; reallocating time; pediatrics; school health; physical fitness; physical activity; sedentary behavior; public health; metabolic health (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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