A systematic review of in vivo stretching regimens on inflammation and its relevance to translational yoga research

<h4>Objective</h4> To conduct a systematic review evaluating the impact of stretching on inflammation and its resolution using in vivo rodent models. Findings are evaluated for their potential to inform the design of clinical yoga studies to assess the impact of yogic stretching on infla...

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Main Authors: Dennis Muñoz-Vergara, Weronika Grabowska, Gloria Y. Yeh, Sat Bir Khalsa, Kristin L. Schreiber, Christene A. Huang, Ann Marie Zavacki, Peter M. Wayne
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9159623/?tool=EBI
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author Dennis Muñoz-Vergara
Weronika Grabowska
Gloria Y. Yeh
Sat Bir Khalsa
Kristin L. Schreiber
Christene A. Huang
Ann Marie Zavacki
Peter M. Wayne
author_facet Dennis Muñoz-Vergara
Weronika Grabowska
Gloria Y. Yeh
Sat Bir Khalsa
Kristin L. Schreiber
Christene A. Huang
Ann Marie Zavacki
Peter M. Wayne
author_sort Dennis Muñoz-Vergara
collection DOAJ
description <h4>Objective</h4> To conduct a systematic review evaluating the impact of stretching on inflammation and its resolution using in vivo rodent models. Findings are evaluated for their potential to inform the design of clinical yoga studies to assess the impact of yogic stretching on inflammation and health. <h4>Methods</h4> Studies were identified using four databases. Eligible publications included English original peer-reviewed articles between 1900–May 2020. Studies included those investigating the effect of different stretching techniques administered to a whole rodent model and evaluating at least one inflammatory outcome. Studies stretching the musculoskeletal and integumentary systems were considered. Two reviewers removed duplicates, screened abstracts, conducted full-text reviews, and assessed methodological quality. <h4>Results</h4> Of 766 studies identified, 25 were included for synthesis. Seven (28%) studies had a high risk of bias in 3 out of 10 criteria. Experimental stretching protocols resulted in a continuum of inflammatory responses with therapeutic and injurious effects, which varied with a combination of three stretching parameters––duration, frequency, and intensity. Relative to injurious stretching, therapeutic stretching featured longer-term stretching protocols. Evidence of pro- and mixed-inflammatory effects of stretching was found in 16 muscle studies. Evidence of pro-, anti-, and mixed-inflammatory effects was found in nine longer-term stretching studies of the integumentary system. <h4>Conclusion</h4> Despite the overall high quality of these summarized studies, evaluation of stretching protocols paralleling yogic stretching is limited. Both injurious and therapeutic stretching induce aspects of inflammatory responses that varied among the different stretching protocols. Inflammatory markers, such as cytokines, are potential outcomes to consider in clinical yoga studies. Future translational research evaluating therapeutic benefits should consider in vitro studies, active vs. passive stretching, shorter-term vs. longer-term interventions, systemic vs. local effects of stretching, animal models resembling human anatomy, control and estimation of non-specific stresses, development of in vivo self-stretching paradigms targeting myofascial tissues, and in vivo models accounting for gross musculoskeletal posture.
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spelling doaj.art-d88b2ca141e94e25851a8fc6f8a27bc32022-12-22T03:29:23ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01176A systematic review of in vivo stretching regimens on inflammation and its relevance to translational yoga researchDennis Muñoz-VergaraWeronika GrabowskaGloria Y. YehSat Bir KhalsaKristin L. SchreiberChristene A. HuangAnn Marie ZavackiPeter M. Wayne<h4>Objective</h4> To conduct a systematic review evaluating the impact of stretching on inflammation and its resolution using in vivo rodent models. Findings are evaluated for their potential to inform the design of clinical yoga studies to assess the impact of yogic stretching on inflammation and health. <h4>Methods</h4> Studies were identified using four databases. Eligible publications included English original peer-reviewed articles between 1900–May 2020. Studies included those investigating the effect of different stretching techniques administered to a whole rodent model and evaluating at least one inflammatory outcome. Studies stretching the musculoskeletal and integumentary systems were considered. Two reviewers removed duplicates, screened abstracts, conducted full-text reviews, and assessed methodological quality. <h4>Results</h4> Of 766 studies identified, 25 were included for synthesis. Seven (28%) studies had a high risk of bias in 3 out of 10 criteria. Experimental stretching protocols resulted in a continuum of inflammatory responses with therapeutic and injurious effects, which varied with a combination of three stretching parameters––duration, frequency, and intensity. Relative to injurious stretching, therapeutic stretching featured longer-term stretching protocols. Evidence of pro- and mixed-inflammatory effects of stretching was found in 16 muscle studies. Evidence of pro-, anti-, and mixed-inflammatory effects was found in nine longer-term stretching studies of the integumentary system. <h4>Conclusion</h4> Despite the overall high quality of these summarized studies, evaluation of stretching protocols paralleling yogic stretching is limited. Both injurious and therapeutic stretching induce aspects of inflammatory responses that varied among the different stretching protocols. Inflammatory markers, such as cytokines, are potential outcomes to consider in clinical yoga studies. Future translational research evaluating therapeutic benefits should consider in vitro studies, active vs. passive stretching, shorter-term vs. longer-term interventions, systemic vs. local effects of stretching, animal models resembling human anatomy, control and estimation of non-specific stresses, development of in vivo self-stretching paradigms targeting myofascial tissues, and in vivo models accounting for gross musculoskeletal posture.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9159623/?tool=EBI
spellingShingle Dennis Muñoz-Vergara
Weronika Grabowska
Gloria Y. Yeh
Sat Bir Khalsa
Kristin L. Schreiber
Christene A. Huang
Ann Marie Zavacki
Peter M. Wayne
A systematic review of in vivo stretching regimens on inflammation and its relevance to translational yoga research
PLoS ONE
title A systematic review of in vivo stretching regimens on inflammation and its relevance to translational yoga research
title_full A systematic review of in vivo stretching regimens on inflammation and its relevance to translational yoga research
title_fullStr A systematic review of in vivo stretching regimens on inflammation and its relevance to translational yoga research
title_full_unstemmed A systematic review of in vivo stretching regimens on inflammation and its relevance to translational yoga research
title_short A systematic review of in vivo stretching regimens on inflammation and its relevance to translational yoga research
title_sort systematic review of in vivo stretching regimens on inflammation and its relevance to translational yoga research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9159623/?tool=EBI
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