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Interrupting prolonged sitting with frequent short bouts of light‐intensity activity in people with type 1 diabetes improves glycaemic control without increasing hypoglycaemia: The SIT‐LESS randomised controlled trial

Matthew D. Campbell Orcid Logo, Anwar M. Alobaid, Mark Hopkins, Paddy C. Dempsey, Sam M. Pearson Orcid Logo, Noppadol Kietsiriroje Orcid Logo, Rachel Churm Orcid Logo, Ramzi A. Ajjan

Diabetes, Obesity and Metabolism

Swansea University Author: Rachel Churm Orcid Logo

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DOI (Published version): 10.1111/dom.15254

Abstract

Aim: To examine the impact of interrupting prolonged sitting with frequent short bouts of light-intensity activity on glycaemic control in people with type 1 diabetes (T1D). Materials and Methods: In total, 32 inactive adults with T1D [aged 27.9 ± 4.7 years, 15 men, diabetes duration 16.0 ± 6.9 year...

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Published in: Diabetes, Obesity and Metabolism
ISSN: 1462-8902 1463-1326
Published: Wiley
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URI: https://cronfa.swan.ac.uk/Record/cronfa64421
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Materials and Methods: In total, 32 inactive adults with T1D [aged 27.9 ± 4.7 years, 15 men, diabetes duration 16.0 ± 6.9 years and glycated haemoglobin 8.4 ± 1.4% (68 ± 2.3 mmol/mol)] underwent two 7-h experimental conditions in a randomised crossover fashion with &gt;7-day washout consisting of: uninterrupted sitting (SIT), or, interrupted sitting with 3-min bouts of self-paced walking at 30-min intervals (SIT-LESS). Standardised mixed-macronutrient meals were administered 3.5 h apart during each condition. Blinded continuous glucose monitoring captured interstitial glucose responses during the 7-h experimental period and for a further 48-h under free-living conditions. Results: SIT-LESS reduced total mean glucose (SIT 8.2 ± 2.6 vs. SIT-LESS 6.9 ± 1.7 mmol/L, p = .001) and increased time in range (3.9-10.0 mmol/L) by 13.7% (SIT 71.5 ± 9.5 vs. SIT-LESS 85.1 ± 7.1%, p = .002). Hyperglycaemia (&gt;10.0 mmol/L) was reduced by 15.0% under SIT-LESS (SIT 24.2 ± 10.8 vs. SIT-LESS 9.2 ± 6.4%, p = .002), whereas hypoglycaemia exposure (&lt;3.9 mmol/L) (SIT 4.6 ± 3.0 vs. SIT-LESS 6.0 ± 6.0%, p = .583) was comparable across conditions. SIT-LESS reduced glycaemic variability (coefficient of variation %) by 7.8% across the observation window (p = .021). These findings were consistent when assessing discrete time periods, with SIT-LESS improving experimental and free-living postprandial, whole-day and night-time glycaemic outcomes (p &lt; .05). Conclusions: Interrupting prolonged sitting with frequent short bouts of light-intensity activity improves acute postprandial and 48-h glycaemia in adults with T1D. 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spelling v2 64421 2023-09-05 Interrupting prolonged sitting with frequent short bouts of light‐intensity activity in people with type 1 diabetes improves glycaemic control without increasing hypoglycaemia: The SIT‐LESS randomised controlled trial c6cd8267ff0b13f2ea333bbfefdae144 0000-0001-9855-6282 Rachel Churm Rachel Churm true false 2023-09-05 STSC Aim: To examine the impact of interrupting prolonged sitting with frequent short bouts of light-intensity activity on glycaemic control in people with type 1 diabetes (T1D). Materials and Methods: In total, 32 inactive adults with T1D [aged 27.9 ± 4.7 years, 15 men, diabetes duration 16.0 ± 6.9 years and glycated haemoglobin 8.4 ± 1.4% (68 ± 2.3 mmol/mol)] underwent two 7-h experimental conditions in a randomised crossover fashion with >7-day washout consisting of: uninterrupted sitting (SIT), or, interrupted sitting with 3-min bouts of self-paced walking at 30-min intervals (SIT-LESS). Standardised mixed-macronutrient meals were administered 3.5 h apart during each condition. Blinded continuous glucose monitoring captured interstitial glucose responses during the 7-h experimental period and for a further 48-h under free-living conditions. Results: SIT-LESS reduced total mean glucose (SIT 8.2 ± 2.6 vs. SIT-LESS 6.9 ± 1.7 mmol/L, p = .001) and increased time in range (3.9-10.0 mmol/L) by 13.7% (SIT 71.5 ± 9.5 vs. SIT-LESS 85.1 ± 7.1%, p = .002). Hyperglycaemia (>10.0 mmol/L) was reduced by 15.0% under SIT-LESS (SIT 24.2 ± 10.8 vs. SIT-LESS 9.2 ± 6.4%, p = .002), whereas hypoglycaemia exposure (<3.9 mmol/L) (SIT 4.6 ± 3.0 vs. SIT-LESS 6.0 ± 6.0%, p = .583) was comparable across conditions. SIT-LESS reduced glycaemic variability (coefficient of variation %) by 7.8% across the observation window (p = .021). These findings were consistent when assessing discrete time periods, with SIT-LESS improving experimental and free-living postprandial, whole-day and night-time glycaemic outcomes (p < .05). Conclusions: Interrupting prolonged sitting with frequent short bouts of light-intensity activity improves acute postprandial and 48-h glycaemia in adults with T1D. This pragmatic strategy is an efficacious approach to reducing sedentariness and increasing physical activity levels without increasing risk of hypoglycaemia in T1D. Journal Article Diabetes, Obesity and Metabolism Wiley 1462-8902 1463-1326 Continuous glucose monitoring, exercise intervention, hypoglycaemia, type 1 diabetes 0 0 0 0001-01-01 10.1111/dom.15254 http://dx.doi.org/10.1111/dom.15254 COLLEGE NANME Sport and Exercise Sciences COLLEGE CODE STSC Swansea University This study was funded by Diabetes UK (project grant: 20/0006154). 2023-10-10T11:46:25.2114888 2023-09-05T08:44:56.7091760 Faculty of Science and Engineering School of Engineering and Applied Sciences - Sport and Exercise Sciences Matthew D. Campbell 0000-0001-5883-5041 1 Anwar M. Alobaid 2 Mark Hopkins 3 Paddy C. Dempsey 4 Sam M. Pearson 0000-0002-4943-6759 5 Noppadol Kietsiriroje 0000-0002-5076-4450 6 Rachel Churm 0000-0001-9855-6282 7 Ramzi A. Ajjan 8 64421__28447__749712ef9c6e4f4c821c826e60ef9e1d.pdf 64421.pdf 2023-09-05T08:47:56.2527886 Output 1399193 application/pdf Version of Record true © 2023 The Authors. Diabetes, Obesity and Metabolism published by John Wiley & Sons Ltd. Distributed under the terms of a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). true eng http://creativecommons.org/licenses/by/4.0/
title Interrupting prolonged sitting with frequent short bouts of light‐intensity activity in people with type 1 diabetes improves glycaemic control without increasing hypoglycaemia: The SIT‐LESS randomised controlled trial
spellingShingle Interrupting prolonged sitting with frequent short bouts of light‐intensity activity in people with type 1 diabetes improves glycaemic control without increasing hypoglycaemia: The SIT‐LESS randomised controlled trial
Rachel Churm
title_short Interrupting prolonged sitting with frequent short bouts of light‐intensity activity in people with type 1 diabetes improves glycaemic control without increasing hypoglycaemia: The SIT‐LESS randomised controlled trial
title_full Interrupting prolonged sitting with frequent short bouts of light‐intensity activity in people with type 1 diabetes improves glycaemic control without increasing hypoglycaemia: The SIT‐LESS randomised controlled trial
title_fullStr Interrupting prolonged sitting with frequent short bouts of light‐intensity activity in people with type 1 diabetes improves glycaemic control without increasing hypoglycaemia: The SIT‐LESS randomised controlled trial
title_full_unstemmed Interrupting prolonged sitting with frequent short bouts of light‐intensity activity in people with type 1 diabetes improves glycaemic control without increasing hypoglycaemia: The SIT‐LESS randomised controlled trial
title_sort Interrupting prolonged sitting with frequent short bouts of light‐intensity activity in people with type 1 diabetes improves glycaemic control without increasing hypoglycaemia: The SIT‐LESS randomised controlled trial
author_id_str_mv c6cd8267ff0b13f2ea333bbfefdae144
author_id_fullname_str_mv c6cd8267ff0b13f2ea333bbfefdae144_***_Rachel Churm
author Rachel Churm
author2 Matthew D. Campbell
Anwar M. Alobaid
Mark Hopkins
Paddy C. Dempsey
Sam M. Pearson
Noppadol Kietsiriroje
Rachel Churm
Ramzi A. Ajjan
format Journal article
container_title Diabetes, Obesity and Metabolism
institution Swansea University
issn 1462-8902
1463-1326
doi_str_mv 10.1111/dom.15254
publisher Wiley
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Sport and Exercise Sciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Sport and Exercise Sciences
url http://dx.doi.org/10.1111/dom.15254
document_store_str 1
active_str 0
description Aim: To examine the impact of interrupting prolonged sitting with frequent short bouts of light-intensity activity on glycaemic control in people with type 1 diabetes (T1D). Materials and Methods: In total, 32 inactive adults with T1D [aged 27.9 ± 4.7 years, 15 men, diabetes duration 16.0 ± 6.9 years and glycated haemoglobin 8.4 ± 1.4% (68 ± 2.3 mmol/mol)] underwent two 7-h experimental conditions in a randomised crossover fashion with >7-day washout consisting of: uninterrupted sitting (SIT), or, interrupted sitting with 3-min bouts of self-paced walking at 30-min intervals (SIT-LESS). Standardised mixed-macronutrient meals were administered 3.5 h apart during each condition. Blinded continuous glucose monitoring captured interstitial glucose responses during the 7-h experimental period and for a further 48-h under free-living conditions. Results: SIT-LESS reduced total mean glucose (SIT 8.2 ± 2.6 vs. SIT-LESS 6.9 ± 1.7 mmol/L, p = .001) and increased time in range (3.9-10.0 mmol/L) by 13.7% (SIT 71.5 ± 9.5 vs. SIT-LESS 85.1 ± 7.1%, p = .002). Hyperglycaemia (>10.0 mmol/L) was reduced by 15.0% under SIT-LESS (SIT 24.2 ± 10.8 vs. SIT-LESS 9.2 ± 6.4%, p = .002), whereas hypoglycaemia exposure (<3.9 mmol/L) (SIT 4.6 ± 3.0 vs. SIT-LESS 6.0 ± 6.0%, p = .583) was comparable across conditions. SIT-LESS reduced glycaemic variability (coefficient of variation %) by 7.8% across the observation window (p = .021). These findings were consistent when assessing discrete time periods, with SIT-LESS improving experimental and free-living postprandial, whole-day and night-time glycaemic outcomes (p < .05). Conclusions: Interrupting prolonged sitting with frequent short bouts of light-intensity activity improves acute postprandial and 48-h glycaemia in adults with T1D. This pragmatic strategy is an efficacious approach to reducing sedentariness and increasing physical activity levels without increasing risk of hypoglycaemia in T1D.
published_date 0001-01-01T11:46:26Z
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