Gluteal muscle function and size in swimmers

Semciw, Adam I., Green, Rodney A. and Pizzari, Tania (2015) Gluteal muscle function and size in swimmers. Journal of Science and Medicine in Sport, 19 6: 498-503. doi:10.1016/j.jsams.2015.06.004

Author Semciw, Adam I.
Green, Rodney A.
Pizzari, Tania
Title Gluteal muscle function and size in swimmers
Journal name Journal of Science and Medicine in Sport   Check publisher's open access policy
ISSN 1878-1861
Publication date 2015-06-09
Sub-type Article (original research)
DOI 10.1016/j.jsams.2015.06.004
Open Access Status Not Open Access
Volume 19
Issue 6
Start page 498
End page 503
Total pages 6
Place of publication Chatswood, NSW, Australia
Publisher Elsevier Australia
Language eng
Formatted abstract
Objectives: To compare the gluteus medius and minimus segments size and activity in swimmers versus non-swimmers.
Design: Case matched-control cross-sectional study.
Methods: The three segments of gluteus medius (anterior, middle and posterior) and two segments of gluteus minimus (anterior and posterior) were evaluated using electromyography and magnetic resonance imaging in 15 swimmers (7 elite and 8 non-elite) and 15 gender- and aged-matched controls. For each muscle segment, values were obtained for peak amplitude, average amplitude, and time to peak from each phase of the gait cycle (0–20%, 20–60%, and total stance).
Results: The pattern of anterior gluteus minimus EMG activity in swimmers demonstrated additional activity early in the gait cycle when compared with controls. The segmental differences between anterior and posterior gluteus minimus during gait identified in the control group were not present in the swimmers. Overall, there were no significant differences in the gluteus medius EMG characteristics between groups and muscle size was not significantly different between groups for any of the hip abductor muscles.
Conclusions: The preliminary evidence of non-segmental differences within the gluteus minimus of swimmers (as opposed to non-swimmers) might implicate reduced-gravity environments in contributing to subsequent changes in deep stabiliser muscles. Such changes might predispose the athlete to a greater risk of lower limb injury during weight bearing activities.
Keyword Hip
Gluteus medius
Gluteus minimus
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article in press corrected proof.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Health and Rehabilitation Sciences Publications
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