Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/89379
| Title: | Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons : implications for running injuries | Authors: | Chen, TLW Wong, DWC Wang, Y Tan, Q Lam, WK Zhang, M |
Issue Date: | 2020 | Source: | Journal of sport and health science, In Press, Corrected Proof, Available online 28 September 2020, p. 1-8, https://dx.doi.org/10.1016/j.jshs.2020.09.006 | Abstract: | 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 = 0.004–0.010) 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. |
Keywords: | Coupling angle Endurance running Motion capture analysis Musculoskeletal modeling Vector coding technique |
Publisher: | Elsevier | Journal: | Journal of sport and health science | ISSN: | 2095-2546 | DOI: | 10.1016/j.jshs.2020.09.006 | Rights: | © 2020 Published by Elsevier B.V. on behalf of Shanghai University of Sport. This is an open access article under the CC BY-NC-ND license(http://creativecommons.org/licenses/by-nc-nd/4.0/) The following publication Tony Lin-Wei Chen et al., Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons:Implications for running injuries, Journal of Sport and Health Science (2020) is available at https://dx.doi.org/10.1016/j.jshs.2020.09.006. |
| Appears in Collections: | Journal/Magazine Article |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1-s2.0-S2095254620301228-main.pdf | 1.02 MB | Adobe PDF | View/Open |
Access
View full-text via PolyU eLinks 
Page views
28
Citations as of May 22, 2022
Downloads
8
Citations as of May 22, 2022
SCOPUSTM
Citations
3
Citations as of May 19, 2022
WEB OF SCIENCETM
Citations
4
Citations as of May 19, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.