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Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons: Implications for running injuries
BACKGROUND: Segment coordination variability (CV) is a movement pattern associated with running-related injuries. It can also be adversely affected by a prolonged run. However, research on this topic is currently limited. The purpose of this study was to investigate the effects of a prolonged run on...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Shanghai University of Sport
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8848018/ https://www.ncbi.nlm.nih.gov/pubmed/32992036 http://dx.doi.org/10.1016/j.jshs.2020.09.006 |
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author | Chen, Tony Lin-Wei Wong, Duo Wai-Chi Wang, Yan Tan, Qitao Lam, Wing-Kai Zhang, Ming |
author_facet | Chen, Tony Lin-Wei Wong, Duo Wai-Chi Wang, Yan Tan, Qitao Lam, Wing-Kai Zhang, Ming |
author_sort | Chen, Tony Lin-Wei |
collection | PubMed |
description | BACKGROUND: Segment coordination variability (CV) is a movement pattern associated with running-related injuries. It can also be adversely affected by a prolonged run. However, research on this topic is currently limited. The purpose of this study was to investigate the effects of a prolonged run on segment CV and vertical loading rates during a treadmill half marathon. METHODS: Fifteen healthy runners ran a half marathon on an instrumental treadmill in a biomechanical laboratory. Synchronized kinematic and kinetic data were collected every 2 km (from 2 km until 20 km), and the data were processed by musculoskeletal modeling. Segment CVs were computed from the angle-angle plots of selected pelvis-thigh, thigh-shank, and shank-rearfoot couplings using a modified vector coding technique. The loading rate of vertical ground reaction force was also calculated. A one-way MANOVA with repeated measures was performed on each of the outcome variables to examine the main effect of running mileage. RESULTS: Significant effects of running mileage were found on segment CVs (p ≤ 0.010) but not on loading rate (p = 0.881). Notably, during the early stance phase, the CV of pelvis frontal vs. thigh frontal was significantly increased at 20 km compared with the CV at 8 km (g = 0.59, p = 0.022). The CV of shank transverse vs. rearfoot frontal decreased from 2 km to 8 km (g = 0.30, p = 0.020) but then significantly increased at both 18 km (g = 0.05, p < 0.001) and 20 km (g = 0.36, p < 0.001). CONCLUSION: At the early stance, runners maintained stable CVs on the sagittal plane, which could explain the unchanged loading rate throughout the half marathon. However, increased CVs on the frontal/transverse plane may be an early sign of fatigue and indicative of possible injury risk. Further studies are necessary for conclusive statements in this regard. |
format | Online Article Text |
id | pubmed-8848018 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Shanghai University of Sport |
record_format | MEDLINE/PubMed |
spelling | pubmed-88480182022-02-25 Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons: Implications for running injuries Chen, Tony Lin-Wei Wong, Duo Wai-Chi Wang, Yan Tan, Qitao Lam, Wing-Kai Zhang, Ming J Sport Health Sci Original Article BACKGROUND: Segment coordination variability (CV) is a movement pattern associated with running-related injuries. It can also be adversely affected by a prolonged run. However, research on this topic is currently limited. The purpose of this study was to investigate the effects of a prolonged run on segment CV and vertical loading rates during a treadmill half marathon. METHODS: Fifteen healthy runners ran a half marathon on an instrumental treadmill in a biomechanical laboratory. Synchronized kinematic and kinetic data were collected every 2 km (from 2 km until 20 km), and the data were processed by musculoskeletal modeling. Segment CVs were computed from the angle-angle plots of selected pelvis-thigh, thigh-shank, and shank-rearfoot couplings using a modified vector coding technique. The loading rate of vertical ground reaction force was also calculated. A one-way MANOVA with repeated measures was performed on each of the outcome variables to examine the main effect of running mileage. RESULTS: Significant effects of running mileage were found on segment CVs (p ≤ 0.010) but not on loading rate (p = 0.881). Notably, during the early stance phase, the CV of pelvis frontal vs. thigh frontal was significantly increased at 20 km compared with the CV at 8 km (g = 0.59, p = 0.022). The CV of shank transverse vs. rearfoot frontal decreased from 2 km to 8 km (g = 0.30, p = 0.020) but then significantly increased at both 18 km (g = 0.05, p < 0.001) and 20 km (g = 0.36, p < 0.001). CONCLUSION: At the early stance, runners maintained stable CVs on the sagittal plane, which could explain the unchanged loading rate throughout the half marathon. However, increased CVs on the frontal/transverse plane may be an early sign of fatigue and indicative of possible injury risk. Further studies are necessary for conclusive statements in this regard. Shanghai University of Sport 2022-01 2020-09-28 /pmc/articles/PMC8848018/ /pubmed/32992036 http://dx.doi.org/10.1016/j.jshs.2020.09.006 Text en © 2020 Published by Elsevier B.V. on behalf of Shanghai University of Sport. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Original Article Chen, Tony Lin-Wei Wong, Duo Wai-Chi Wang, Yan Tan, Qitao Lam, Wing-Kai Zhang, Ming Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons: Implications for running injuries |
title | Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons: Implications for running injuries |
title_full | Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons: Implications for running injuries |
title_fullStr | Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons: Implications for running injuries |
title_full_unstemmed | Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons: Implications for running injuries |
title_short | Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons: Implications for running injuries |
title_sort | changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons: implications for running injuries |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8848018/ https://www.ncbi.nlm.nih.gov/pubmed/32992036 http://dx.doi.org/10.1016/j.jshs.2020.09.006 |
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