Interrupting Sitting Time with Regular Walks Attenuates Postprandial Triglycerides

M. Miyashita, K. Edamoto, T. Kidokoro, T. Yanaoka, K. Kashiwabara, M. Takahashi, S. Burns

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

We compared the effects of prolonged sitting with the effects of sitting interrupted by regular walking and the effects of prolonged sitting after continuous walking on postprandial triglyceride in postmenopausal women. 15 participants completed 3 trials in random order: 1) prolonged sitting, 2) regular walking, and 3) prolonged sitting preceded by continuous walking. During the sitting trial, participants rested for 8 h. For the walking trials, participants walked briskly in either twenty 90-sec bouts over 8 h or one 30-min bout in the morning (09:00-09:30). Except for walking, both exercise trials mimicked the sitting trial. In each trial, participants consumed a breakfast (08:00) and lunch (11:00). Blood samples were collected in the fasted state and at 2, 4, 6 and 8 h after breakfast. The serum triglyceride incremental area under the curve was 15 and 14% lower after regular walking compared with prolonged sitting and prolonged sitting after continuous walking (4.73±2.50 vs. 5.52±2.95 vs. 5.50±2.59 mmol/La·8 h respectively, main effect of trial: P=0.023). Regularly interrupting sitting time with brief bouts of physical activity can reduce postprandial triglyceride in postmenopausal women.

Original languageEnglish
Pages (from-to)97-103
Number of pages7
JournalInternational journal of sports medicine
Volume37
Issue number2
DOIs
Publication statusPublished - 2015 Oct 28
Externally publishedYes

Keywords

  • postprandial period
  • sedentary lifestyle
  • short bouts of walking

ASJC Scopus subject areas

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

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