Frequency of interruptions to prolonged sitting and postprandial metabolic responses in young, obese, Chinese men

Waris Wongpipit, Wendy Yajun Huang, Masashi Miyashita, Xiao Yu Tian, Stephen Heung Sang Wong*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This study aimed to examine the effects of 3-min light-intensity walking every 30 min (3-min) and 6-min light-intensity walking every 60 min (6-min) compared with prolonged sitting (SIT) on the postprandial metabolic responses in young, centrally obese, Chinese men. Twenty-one Chinese men with central obesity (age, 23 ± 4 years; body mass index, 29.8 ± 3.2 kg·m−2; waist circumference, 98.7 ± 7.1 cm; mean ± SD) underwent three 6-h experiments with a 7-day washout period, SIT, 3-min, and 6-min, in randomized order. Compared with SIT, neither walking condition showed differences in total and net incremental area under the curve (tAUC and iAUC, respectively) for glucose, insulin, nor non-esterified fatty acids. The tAUC and iAUC for triglycerides for the SIT condition (10.8 [9.3, 12.2] and 4.4 [3.7, 5.1] mmol·h·L−1, respectively; mean [95% confidence interval]) was higher than 3-min (10.4 [9.0, 11.8] and 3.8 [3.3, 4.3] mmol·h·L−1, respectively, both Ps <0.05) and 6-min (9.6 [8.1, 11.0] and 3.5 [2.9, 4.2] mmol·h·L−1, respectively, both Ps <0.01) conditions. Interrupting prolonged sitting regardless of frequency-reduced postprandial triglycerides. A higher volume of physical activity may be required to obtain greater glycaemic benefits in young Chinese men with central obesity.

Original languageEnglish
Pages (from-to)1376-1385
Number of pages10
JournalJournal of sports sciences
Volume39
Issue number12
DOIs
Publication statusPublished - 2021

Keywords

  • Postprandial Glycaemia
  • Postprandial Triacylglycerol
  • Sedentary Behaviour
  • Uninterrupted Sitting
  • Walking

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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