Hawari, N. S.A., Wilson, J. and Gill, J. M.R. (2019) Effects of breaking up sedentary time with "chair squats" on postprandial metabolism. Journal of Sports Sciences, 37(3), pp. 331-338. (doi: 10.1080/02640414.2018.1500856) (PMID:30058957)
|
Text
151809.pdf - Accepted Version 475kB |
Abstract
Prolonged sitting induces adverse metabolic changes. We aimed to determine whether breaking up prolonged sedentary time with short periods of repeated sit-to-stand transitions (“chair squats”) every 20 minutes influences postprandial metabolic responses. Fourteen participants (11 men, 3 women), age 37 ± 16 years, BMI 30.5 ± 3.8 kg.m−2 (mean ± SD) each participated in two experimental trials in random order, in which they arrived fasted, then consumed a test breakfast (8 kcal.kg−1 body weight, 37% energy from fat, 49% carbohydrates, 14% protein) and, 3.5 hours later, an identical test lunch. Expired air and blood samples were taken fasted and for 6.5 hours postprandially. In one trial (SIT) participants sat continuously throughout the observation period; in the “Chair squat” trial (SIT/STAND), participants performed “chair squats” (10 × standing and sitting over 30 seconds, every 20 minutes). Compared to SIT, energy expenditure was 409.7 ± 41.6 kJ (16.6 ± 1.7%) higher in SIT/STAND (p < 0.0001). Postprandial insulin concentrations over the post-breakfast period were 10.9 ± 8.4% lower in SIT/STAND than SIT (p = 0.047), but did not differ between trials in the post-lunch period. Glucose and triglyceride concentrations did not differ significantly between trials. These data demonstrate that a simple, unobtrusive intervention to break up sedentary time can induce some favourable metabolic changes.
Item Type: | Articles |
---|---|
Additional Information: | NSAH was supported by a Scholarship from the Government of Saudi Arabia. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Gill, Professor Jason and Hawari, Nabeha Saleh A and Wilson, Mr John |
Authors: | Hawari, N. S.A., Wilson, J., and Gill, J. M.R. |
College/School: | College of Medical Veterinary and Life Sciences > School of Cardiovascular & Metabolic Health |
Journal Name: | Journal of Sports Sciences |
Publisher: | Taylor & Francis |
ISSN: | 0264-0414 |
ISSN (Online): | 1466-447X |
Published Online: | 30 July 2018 |
Copyright Holders: | Copyright © 2018 Informa UK Limited, trading as Taylor and Francis Group |
First Published: | First published in Journal of Sports Sciences 39(3): 331-338 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
University Staff: Request a correction | Enlighten Editors: Update this record