Exploring the Relations Between Running Variability and Injury Susceptibility: A Scoping Review

Background: Variability in running mechanics, termed running variability, reflects the adaptability of the locomotor system to dynamic environments. Due to inconsistent findings in the literature, there is a research gap in understanding its role in injury. Objectives: This scoping review explores r...

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Main Authors: Zaheen Ahmed Iqbal, Daniel Hung-Kay Chow
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Sports
Subjects:
Online Access:https://www.mdpi.com/2075-4663/13/2/55
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author Zaheen Ahmed Iqbal
Daniel Hung-Kay Chow
author_facet Zaheen Ahmed Iqbal
Daniel Hung-Kay Chow
author_sort Zaheen Ahmed Iqbal
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description Background: Variability in running mechanics, termed running variability, reflects the adaptability of the locomotor system to dynamic environments. Due to inconsistent findings in the literature, there is a research gap in understanding its role in injury. Objectives: This scoping review explores running variability’s influence on injury susceptibility, examining studies across various injury types, skill levels, methods, and analysis adhering to the guidelines outlined in the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews checklist (PRISMA-ScR). Eligibility criteria and sources of evidence: Twenty-one studies illustrating the complexity of running variability in relation to running-related injuries were selected from Web of Science, ScienceDirect, Google Scholar, and PubMed databases during December 2022 to June 2024. Results: There are significant differences in running variability between injured and healthy runners, with variability influenced by injury type, stage, and individual differences with varying levels of evidence. Out of 21 studies, 8 (38%) found no group differences, 11 (52%) noted higher running variability in injured participants, and 5 (24%) reported lower variability in injured than healthy subjects. The review was constrained by the diverse subjects, methods, tasks, and outcome variables across the studies. Conclusions: Currently, there is no standard normal range for running variability and abnormal variability is defined relative to control groups, though healthy controls can also show abnormal variability without injury in some study designs. Despite the absence of standardized running variability norms, wearable sensors offer insights into real-world running mechanics, presenting running variability as a potential predictor of running-related injuries. The review highlights the need for standardized protocols and further research to clarify running variability’s role in injury prediction and prevention, emphasizing the necessity of individualized approaches in training and rehabilitation. Future studies should aim to establish a causal relationship between running variability and injury susceptibility, focusing on identifying variability patterns that precede or follow an injury. This review sets the stage for developing evidence-based strategies to optimize running performance and minimize injury risks.
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spelling doaj-art-e615a7e9287f40ffa8f47d94b6e46f132025-08-20T03:12:16ZengMDPI AGSports2075-46632025-02-011325510.3390/sports13020055Exploring the Relations Between Running Variability and Injury Susceptibility: A Scoping ReviewZaheen Ahmed Iqbal0Daniel Hung-Kay Chow1Department of Health & Physical Education, The Education University of Hong Kong, Tai Po, Hong Kong SAR, ChinaDepartment of Health & Physical Education, The Education University of Hong Kong, Tai Po, Hong Kong SAR, ChinaBackground: Variability in running mechanics, termed running variability, reflects the adaptability of the locomotor system to dynamic environments. Due to inconsistent findings in the literature, there is a research gap in understanding its role in injury. Objectives: This scoping review explores running variability’s influence on injury susceptibility, examining studies across various injury types, skill levels, methods, and analysis adhering to the guidelines outlined in the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews checklist (PRISMA-ScR). Eligibility criteria and sources of evidence: Twenty-one studies illustrating the complexity of running variability in relation to running-related injuries were selected from Web of Science, ScienceDirect, Google Scholar, and PubMed databases during December 2022 to June 2024. Results: There are significant differences in running variability between injured and healthy runners, with variability influenced by injury type, stage, and individual differences with varying levels of evidence. Out of 21 studies, 8 (38%) found no group differences, 11 (52%) noted higher running variability in injured participants, and 5 (24%) reported lower variability in injured than healthy subjects. The review was constrained by the diverse subjects, methods, tasks, and outcome variables across the studies. Conclusions: Currently, there is no standard normal range for running variability and abnormal variability is defined relative to control groups, though healthy controls can also show abnormal variability without injury in some study designs. Despite the absence of standardized running variability norms, wearable sensors offer insights into real-world running mechanics, presenting running variability as a potential predictor of running-related injuries. The review highlights the need for standardized protocols and further research to clarify running variability’s role in injury prediction and prevention, emphasizing the necessity of individualized approaches in training and rehabilitation. Future studies should aim to establish a causal relationship between running variability and injury susceptibility, focusing on identifying variability patterns that precede or follow an injury. This review sets the stage for developing evidence-based strategies to optimize running performance and minimize injury risks.https://www.mdpi.com/2075-4663/13/2/55running variabilitymovement variabilityrunning-related injurylinear and nonlinear variabilityoptimal variability
spellingShingle Zaheen Ahmed Iqbal
Daniel Hung-Kay Chow
Exploring the Relations Between Running Variability and Injury Susceptibility: A Scoping Review
Sports
running variability
movement variability
running-related injury
linear and nonlinear variability
optimal variability
title Exploring the Relations Between Running Variability and Injury Susceptibility: A Scoping Review
title_full Exploring the Relations Between Running Variability and Injury Susceptibility: A Scoping Review
title_fullStr Exploring the Relations Between Running Variability and Injury Susceptibility: A Scoping Review
title_full_unstemmed Exploring the Relations Between Running Variability and Injury Susceptibility: A Scoping Review
title_short Exploring the Relations Between Running Variability and Injury Susceptibility: A Scoping Review
title_sort exploring the relations between running variability and injury susceptibility a scoping review
topic running variability
movement variability
running-related injury
linear and nonlinear variability
optimal variability
url https://www.mdpi.com/2075-4663/13/2/55
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