Neuromotor control of gluteal muscles in runners with achilles tendinopathy

Franettovich Smith, Melinda M., Honeywill, Conor, Wyndow, Narelle, Crossley, Kay M. and Creaby, Mark W. (2014) Neuromotor control of gluteal muscles in runners with achilles tendinopathy. Medicine and Science in Sports and Exercise, 46 3: 594-599. doi:10.1249/MSS.0000000000000133

Author Franettovich Smith, Melinda M.
Honeywill, Conor
Wyndow, Narelle
Crossley, Kay M.
Creaby, Mark W.
Title Neuromotor control of gluteal muscles in runners with achilles tendinopathy
Journal name Medicine and Science in Sports and Exercise   Check publisher's open access policy
ISSN 0195-9131
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1249/MSS.0000000000000133
Open Access Status DOI
Volume 46
Issue 3
Start page 594
End page 599
Total pages 6
Place of publication Philadelphia, PA United States
Publisher Lippincott Williams and Wilkins
Language eng
Subject 2732 Orthopedics and Sports Medicine
3612 Physical Therapy, Sports Therapy and Rehabilitation
Abstract Purpose: The purpose of this study was to compare the neuromotor control of the gluteus medius (GMED) and gluteus maximus (GMAX) muscles in runners with Achilles tendinopathy to that of healthy controls. Methods: Fourteen male runners with Achilles tendinopathy and 19 healthy male runners (control) ran overground while EMG of GMED and GMAX was recorded. Three temporal variables were identified via visual inspection of EMG data: (i) onset of muscle activity (onset), (ii) offset of muscle activity (offset), and (iii) duration of muscle activity (duration). A multivariate analysis of covariance with between-subject factor of group (Achilles tendinopathy, control) and variables of onset, offset, and duration was performed for each muscle. Age, weight, and height were included as covariates, and α level was set at 0.05. Results: The Achilles tendinopathy group demonstrated a delay in the activation of the GMED relative to heel strike (P < 0.001) and a shorter duration of activation (P < 0.001) compared to that of the control group. GMED offset time relative to heel strike was not different between the groups (P = 0.063). For GMAX, the Achilles tendinopathy group demonstrated a delay in its onset (P = 0.008), a shorter duration of activation (P = 0.002), and earlier offset (P < 0.001) compared to the control group. Conclusions: This study provides preliminary evidence of altered neuromotor control of the GMED and GMAX muscles in male runners with Achilles tendinopathy. Although further prospective studies are required to discern the causal nature of this relationship, this study highlights the importance of considering neuromotor control of the gluteal muscles in the assessment and management of patients with Achilles tendinopathy.
Keyword Electromyography
Gluteus maximus
Gluteus Medius
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
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