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Interrupting sitting acutely attenuates cardiometabolic risk markers in South Asian adults living with overweight and obesity

  • Queen Mary University of London
    ,
  • University of Lincoln
    ,
  • Brunel University London
Research Output: Contribution to journal Article Peer-review

Open access

Sustainable Development Goals

  • SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well

Abstract

Purpose: This study examined the acute effects of interrupting sitting with light-intensity walking on postprandial cardiometabolic risk markers in South Asian adults. Methods: South Asians with overweight/obesity (n=19; body mass index [BMI] >23 kg·m-2) and normal-weight (n=8; BMI 18.0-22.9 kg·m-2) aged 48.8 ± 5.6 years completed two, 5-h conditions: (1) prolonged sitting (SIT), and (2) interrupted sitting with 5-min bouts of light-intensity walking every 30-min (INT-SIT). Blood samples and resting expired air samples were collected throughout each condition. Statistical analyses were completed using linear mixed models. Results: In participants with overweight/obesity, postprandial glucose, triglycerides (TAG) and metabolic load index (MLI) over time were lower, whereas resting substrate utilisation and resting energy expenditure (REE) were higher, in INT-SIT than SIT (all p≤0.05). Compared with SIT (0.18 [95% CI 0.13, 0.22] kcal.min-1), INT-SIT (0.23 [95% CI 0.18, 0.27] kcal.min-1) increased postprandial REE iAUC in participants with overweight/obesity (p=0.04, d=0.51). Postprandial TAG concentrations over time were lower in INT-SIT versus SIT (p=0.01, d=30) in normal-weight participants, with no differences in any other outcomes for this sample group. Conclusion: These findings suggest that interrupting sitting with 5-min bouts of light walking every 30-min acutely attenuates cardiometabolic risk markers among South Asians living with overweight/obesity, whereas limited effects may be seen in individuals with normal-weight.

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 1163-1174 (12 pages)

Journal (Volume, Issue Number)

European Journal of Applied Physiology (Volume 124, Issue 4)

Publication milestones

  • Accepted/In press - 17/10/2023
  • Published - 11/11/2023

Publication status

Published - 11/11/2023

ISSN

1439-6319

External Publication IDs

  • handle.net: 10547/626045
  • Scopus: 85176614554
  • PubMed: 37950762

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