Change in muscle thickness under contracting conditions following return to sports after a hamstring muscle strain injury—A pilot study
The purpose of this study was to measure the change in hamstring muscle thickness between contracting and relaxing conditions following a return to sports after a hamstring muscle strain and thereby evaluate muscle function. Six male track and field sprinters participated in this study. All had expe...
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doaj-5d3defd257dd4092a1de0289fac962072020-11-24T21:42:15ZengElsevierAsia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology2214-68732015-04-0122636710.1016/j.asmart.2015.01.001Change in muscle thickness under contracting conditions following return to sports after a hamstring muscle strain injury—A pilot studyYasuharu Nagano0Ayako Higashihara1Mutsuaki Edama2Department of Health and Sports, Niigata University of Health and Welfare, Niigata, JapanDepartment of Health and Sports, Niigata University of Health and Welfare, Niigata, JapanDepartment of Physical Therapy, Niigata University of Health and Welfare, Niigata, JapanThe purpose of this study was to measure the change in hamstring muscle thickness between contracting and relaxing conditions following a return to sports after a hamstring muscle strain and thereby evaluate muscle function. Six male track and field sprinters participated in this study. All had experienced a prior hamstring strain injury that required a minimum of 2 weeks away from sport participation. Transverse plane scans were performed at the following four points on the affected and unaffected sides under contracting and relaxing conditions: proximal biceps femoris long head, proximal semitendinosus, middle biceps femoris long head, and middle semitendinosus. The results demonstrated an increase in the thickness of the middle biceps femoris long head and middle semitendinosus regions on the unaffected side with contraction, whereas the affected side did not show a significant increase. The proximal semitendinosus muscle thickness was increased with contraction on both the unaffected and the affected sides. By contrast, the proximal biceps femoris muscle thickness did not show a significant increase on both sides. The results of this study show that evaluation of muscle thickness during contraction may be useful for assessing the change in muscle function after a hamstring muscle strain injury.http://www.sciencedirect.com/science/article/pii/S2214687315000023after-effectmusclerehabilitationsports injury |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yasuharu Nagano Ayako Higashihara Mutsuaki Edama |
spellingShingle |
Yasuharu Nagano Ayako Higashihara Mutsuaki Edama Change in muscle thickness under contracting conditions following return to sports after a hamstring muscle strain injury—A pilot study Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology after-effect muscle rehabilitation sports injury |
author_facet |
Yasuharu Nagano Ayako Higashihara Mutsuaki Edama |
author_sort |
Yasuharu Nagano |
title |
Change in muscle thickness under contracting conditions following return to sports after a hamstring muscle strain injury—A pilot study |
title_short |
Change in muscle thickness under contracting conditions following return to sports after a hamstring muscle strain injury—A pilot study |
title_full |
Change in muscle thickness under contracting conditions following return to sports after a hamstring muscle strain injury—A pilot study |
title_fullStr |
Change in muscle thickness under contracting conditions following return to sports after a hamstring muscle strain injury—A pilot study |
title_full_unstemmed |
Change in muscle thickness under contracting conditions following return to sports after a hamstring muscle strain injury—A pilot study |
title_sort |
change in muscle thickness under contracting conditions following return to sports after a hamstring muscle strain injury—a pilot study |
publisher |
Elsevier |
series |
Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology |
issn |
2214-6873 |
publishDate |
2015-04-01 |
description |
The purpose of this study was to measure the change in hamstring muscle thickness between contracting and relaxing conditions following a return to sports after a hamstring muscle strain and thereby evaluate muscle function. Six male track and field sprinters participated in this study. All had experienced a prior hamstring strain injury that required a minimum of 2 weeks away from sport participation. Transverse plane scans were performed at the following four points on the affected and unaffected sides under contracting and relaxing conditions: proximal biceps femoris long head, proximal semitendinosus, middle biceps femoris long head, and middle semitendinosus. The results demonstrated an increase in the thickness of the middle biceps femoris long head and middle semitendinosus regions on the unaffected side with contraction, whereas the affected side did not show a significant increase. The proximal semitendinosus muscle thickness was increased with contraction on both the unaffected and the affected sides. By contrast, the proximal biceps femoris muscle thickness did not show a significant increase on both sides. The results of this study show that evaluation of muscle thickness during contraction may be useful for assessing the change in muscle function after a hamstring muscle strain injury. |
topic |
after-effect muscle rehabilitation sports injury |
url |
http://www.sciencedirect.com/science/article/pii/S2214687315000023 |
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