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Reducing prolonged sedentary time using a treadmill desk acutely improves cardiometabolic risk markers in male and female adults

  • Rachael B. Champion
    ,
  • Lindsey Smith
    ,
  • Jennifer Smith
    ,
  • Bogdana Hirlav
    ,
  • Benjamin David Maylor
    ,
  • Stephanie L. White
  • University of Bedfordshire
Research Output: Contribution to journal Article Peer-review

Open access

Abstract

The objectives of this study were to evaluate the acute effects of interrupting prolonged sitting with an accumulated 2 h of light-intensity walking on postprandial cardiometabolic risk markers. In this randomised crossover trial, 24 participants (twelve males) aged 18-55 years took part in two, 6.5 h conditions: 1) prolonged sitting (SIT) and 2) sitting interrupted hourly with 20 min light-intensity treadmill desk walking at between 1.2-3.5 km/h-1 (INT-SIT). Standardized meals were provided at 0 h and 3 h. Blood samples and blood pressure measures were taken hourly. Statistical analyses were completed using linear mixed models. Postprandial incremental area under the curve responses (mmol/L∙6.5 h) for glucose (4.52 [3.47, 5.56] and 6.66 [5.62, 7.71] for INT-SIT and SIT, respectively) and triglycerides (1.96 [0.96, 2.96] and 2.71 [1.70, 3.71] mmol/L∙6.5 h, for INT-SIT and SIT, respectively) were significantly lower in INT-SIT than SIT. Mean systolic and diastolic blood pressure responses were lower by 3% and 4%, respectively, in INT-SIT than SIT (P<0.05). There was no significant condition x sex interaction effect for any outcomes (P>0.05). These findings suggest that interrupting sitting with an accumulated 2 h of light-intensity walking acutely improves cardiometabolic risk levels in males and females compared with prolonged sitting.

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 2484-2491

Journal (Volume, Issue Number)

Journal of Sports Sciences (Volume 36, Issue 21)

Publication milestones

  • Accepted/In press - 10/04/2018
  • Published - 18/04/2018

Publication status

Published - 18/04/2018

ISSN

0264-0414

External Publication IDs

  • handle.net: 10547/622693
  • Scopus: 85045612289

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