The Effects of Stretching Exercise on Levels of Blood Glucose: A Systematic Review with Meta-Analysis

Abstract Background Physical activity plays an important role in the management of blood glucose levels. However, compelling evidence exists only for aerobic and resistance training. In this review, we aimed to identify the potential effects of stretching exercises on blood glucose levels. Methods A...

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Main Authors: Ewan Thomas, Salvatore Ficarra, Masatoshi Nakamura, Patrik Drid, Tatjana Trivic, Antonino Bianco
Format: Article
Language:English
Published: SpringerOpen 2024-02-01
Series:Sports Medicine - Open
Subjects:
Online Access:https://doi.org/10.1186/s40798-023-00661-w
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author Ewan Thomas
Salvatore Ficarra
Masatoshi Nakamura
Patrik Drid
Tatjana Trivic
Antonino Bianco
author_facet Ewan Thomas
Salvatore Ficarra
Masatoshi Nakamura
Patrik Drid
Tatjana Trivic
Antonino Bianco
author_sort Ewan Thomas
collection DOAJ
description Abstract Background Physical activity plays an important role in the management of blood glucose levels. However, compelling evidence exists only for aerobic and resistance training. In this review, we aimed to identify the potential effects of stretching exercises on blood glucose levels. Methods A systematic literature search was performed using the following databases: Scopus, NLM PubMed, and Web of Science. Studies regarding the effects of stretching exercise in humans on blood glucose or any related variable were included. Further inclusion criteria were: (1) original articles (published from database inception to October 2022), (2) applying stretching as a unique exercise modality, (3) having either longitudinal or acute interventions, (4) including healthy and pathological populations, and (5) having within each study a pre- and post-intervention measure. Quality assessment of the studies was conducted using the Downs and Black checklist. Results A total of 13 articles were included. The quality assessment revealed an overall moderate quality of the included records. Ten articles included patients with type 2 diabetes (T2D), whereas the remaining three included at-risk populations. A total of 731 people with a mean age of 56.7 ± 6.1 years old were analysed. Fasting blood glucose, 2 h post-oral glucose uptake, post-stretching intervention blood glucose levels, and HbA1c were identified as variables related to blood glucose within the studies. After the stretching interventions, a significant reduction was observed in either blood glucose (ES = − 0.79; p = 0.0174) or HbA1c (ES = − 1.11; p =  < 0.0001). Meta-analytic results highlighted greater effects in T2D patients (ES = − 1.15; p = 0.02) and for studies applying stretching as an exercise intervention (ES = − 1.27; p = 0.006) rather than considering stretching as a control exercise modality. Conclusion The results of this systematic review highlight the potential of stretching exercises to reduce blood glucose levels. In particular, if stretching is applied as a specific form of exercise intervention in patients with T2D greater effects are observed. However, further studies with more solid research designs are required, therefore, caution is needed before prescribing stretching as an exercise intervention for glycaemic management.
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spelling doaj.art-2cc05188dbe041f69e1e443b6129d6972024-03-05T19:14:57ZengSpringerOpenSports Medicine - Open2198-97612024-02-0110111310.1186/s40798-023-00661-wThe Effects of Stretching Exercise on Levels of Blood Glucose: A Systematic Review with Meta-AnalysisEwan Thomas0Salvatore Ficarra1Masatoshi Nakamura2Patrik Drid3Tatjana Trivic4Antonino Bianco5Sport and Exercise Sciences Research Unit, Department of Psychology, Educational Science and Human Movement, University of PalermoSport and Exercise Sciences Research Unit, Department of Psychology, Educational Science and Human Movement, University of PalermoFaculty of Rehabilitation Sciences, Nishi Kyushu UniversityFaculty of Sport and Physical Education, University of Novi SadFaculty of Sport and Physical Education, University of Novi SadSport and Exercise Sciences Research Unit, Department of Psychology, Educational Science and Human Movement, University of PalermoAbstract Background Physical activity plays an important role in the management of blood glucose levels. However, compelling evidence exists only for aerobic and resistance training. In this review, we aimed to identify the potential effects of stretching exercises on blood glucose levels. Methods A systematic literature search was performed using the following databases: Scopus, NLM PubMed, and Web of Science. Studies regarding the effects of stretching exercise in humans on blood glucose or any related variable were included. Further inclusion criteria were: (1) original articles (published from database inception to October 2022), (2) applying stretching as a unique exercise modality, (3) having either longitudinal or acute interventions, (4) including healthy and pathological populations, and (5) having within each study a pre- and post-intervention measure. Quality assessment of the studies was conducted using the Downs and Black checklist. Results A total of 13 articles were included. The quality assessment revealed an overall moderate quality of the included records. Ten articles included patients with type 2 diabetes (T2D), whereas the remaining three included at-risk populations. A total of 731 people with a mean age of 56.7 ± 6.1 years old were analysed. Fasting blood glucose, 2 h post-oral glucose uptake, post-stretching intervention blood glucose levels, and HbA1c were identified as variables related to blood glucose within the studies. After the stretching interventions, a significant reduction was observed in either blood glucose (ES = − 0.79; p = 0.0174) or HbA1c (ES = − 1.11; p =  < 0.0001). Meta-analytic results highlighted greater effects in T2D patients (ES = − 1.15; p = 0.02) and for studies applying stretching as an exercise intervention (ES = − 1.27; p = 0.006) rather than considering stretching as a control exercise modality. Conclusion The results of this systematic review highlight the potential of stretching exercises to reduce blood glucose levels. In particular, if stretching is applied as a specific form of exercise intervention in patients with T2D greater effects are observed. However, further studies with more solid research designs are required, therefore, caution is needed before prescribing stretching as an exercise intervention for glycaemic management.https://doi.org/10.1186/s40798-023-00661-wBlood glucoseDiabetesStretchingExerciseHbA1c
spellingShingle Ewan Thomas
Salvatore Ficarra
Masatoshi Nakamura
Patrik Drid
Tatjana Trivic
Antonino Bianco
The Effects of Stretching Exercise on Levels of Blood Glucose: A Systematic Review with Meta-Analysis
Sports Medicine - Open
Blood glucose
Diabetes
Stretching
Exercise
HbA1c
title The Effects of Stretching Exercise on Levels of Blood Glucose: A Systematic Review with Meta-Analysis
title_full The Effects of Stretching Exercise on Levels of Blood Glucose: A Systematic Review with Meta-Analysis
title_fullStr The Effects of Stretching Exercise on Levels of Blood Glucose: A Systematic Review with Meta-Analysis
title_full_unstemmed The Effects of Stretching Exercise on Levels of Blood Glucose: A Systematic Review with Meta-Analysis
title_short The Effects of Stretching Exercise on Levels of Blood Glucose: A Systematic Review with Meta-Analysis
title_sort effects of stretching exercise on levels of blood glucose a systematic review with meta analysis
topic Blood glucose
Diabetes
Stretching
Exercise
HbA1c
url https://doi.org/10.1186/s40798-023-00661-w
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