Reducing sitting time with standing and light activity in free-living conditions on glycemia post-myocardial infarction

Oral Presentation B12.8

Authors

  • Abbie C. Bell University of Bedfordshire
  • Julia K. Zakrzewski-Fruer University of Bedfordshire
  • Lindsey R. Smith University of Bedfordshire
  • Daniel P. Bailey Brunel University London
  • Jo Richards University of Bedfordshire

DOI:

https://doi.org/10.14288/hfjc.v14i3.575

Keywords:

Cardiac Rehabilitation, Sitting Time, Glycemia, Light Intensity Activity

Abstract

Background: Prolonged sitting is an independent risk factor for cardiovascular disease (Tremblay, et al., 2017). Breaking up sitting with light-intensity activity improves cardiometabolic risk markers in healthy and diabetic populations within a free-living environment (Dempsey et al., 2016; Duvivier et al., 2017). Yet, the effects in cardiac patients, a highly relevant population, are unknown. The aim of this study, therefore, is to determine the effects of reducing and breaking up sitting time on glycemia under free-living conditions in participants following a myocardial infarction. Method: A repeated measures, randomised cross over study design will be used, under free-living conditions. Cardiac patients (n=20) will take part in two experimental conditions across 11 days: (i) uninterrupted sitting; (ii) sitting with 5 minutes of standing and light intensity physical activity every 30 minutes (3 hours light activity; 2 hours standing each day). Outcomes are interstitial glucose, blood pressure and mood and wellbeing. Current Status of Project: This study has received approval from the Health Research Authority and data collection has commenced; n=15 will be available to present at the ISPAH Congress. Implication of the findings: The findings will identify whether reducing and breaking up sitting could be effective for improving cardiometabolic health in cardiac patients. It will also inform a feasibility study for a chronic intervention to reduce sitting in this population. Funding Sources: Study funded by the Institute for Physical Activity and Research, University of Bedfordshire as part of a larger PhD project.

Published

2021-09-30

How to Cite

Bell, A., Zakrzewski-Fruer, J., Smith, L., Bailey, D., & Richards, J. (2021). Reducing sitting time with standing and light activity in free-living conditions on glycemia post-myocardial infarction: Oral Presentation B12.8. The Health & Fitness Journal of Canada, 14(3). https://doi.org/10.14288/hfjc.v14i3.575