Do Hip Joint Positioning Affects the Maximal Voluntary Contraction of Gluteus Maximus, Gluteus Medius, TFL and Sartorius Muscles?
Journal Title: Journal of Orthopedics & Bone Disorders - Year 2017, Vol 1, Issue 2
Abstract
Background: Functional and clinical benefits from mini invasive total hip arthroplasty (THA) are widely known. Although it relieves pain and improves quality of life, literature reveals that gait and posturographic parameters of patients undergoing THA do not reach those of the general population. An electromyography study of the hip muscles involved in the surgery (Gluteus Maximus, Gluteus Medius, TFL, Sartorius) could provide some information. But the literature in the field of electromyography assessment of muscles shows discordant methodologies. Purpose: The aim of this study was to develop a methodology to assess the maximal voluntary contraction (MVC) of Gluteus Maximus, Gluteus Medius, TFL, Sartorius muscle as a reference for normalization. Methods: 30 young asymptomatic subjects participated in the study. Each realized 8 maximal voluntary contractions of the hip muscles in various joint positions on 3 sessions. Results: Statistical analysis showed no difference between the 3 sessions, and between the hip positions for hip abductors as well as for hip flexors to assess the MVC. Conclusion: A single session and 1 test is enough to assess the MVC of hip abductors as well as for hip flexors.
Authors and Affiliations
Bernard J*, Beldame J, Lecuyer M, Poirier T, Brunel H, Guiffault P, Van Driessche S, Matsoukis J and Billuart F
Keywords
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