Citation Selkowitz, David M., et al. "Comparison of Electromyographic Activity of the Superior and Inferior Portions of the Gluteus Maximus Muscle During Common Therapeutic Exercises." The Journal of Orthopaedic and Sports Physical Therapy, vol. 46, no. 9, 2016, pp. 794-9. Selkowitz DM, Beneck GJ, Powers CM. Comparison of Electromyographic Activity of the Superior and Inferior Portions of the Gluteus Maximus Muscle During Common Therapeutic Exercises. J Orthop Sports Phys Ther. 2016;46(9):794-9. Selkowitz, D. M., Beneck, G. J., & Powers, C. M. (2016). Comparison of Electromyographic Activity of the Superior and Inferior Portions of the Gluteus Maximus Muscle During Common Therapeutic Exercises. The Journal of Orthopaedic and Sports Physical Therapy, 46(9), 794-9. https://doi.org/10.2519/jospt.2016.6493 Selkowitz DM, Beneck GJ, Powers CM. Comparison of Electromyographic Activity of the Superior and Inferior Portions of the Gluteus Maximus Muscle During Common Therapeutic Exercises. J Orthop Sports Phys Ther. 2016;46(9):794-9. PubMed PMID: 27494053.

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TY - JOUR T1 - Comparison of Electromyographic Activity of the Superior and Inferior Portions of the Gluteus Maximus Muscle During Common Therapeutic Exercises. AU - Selkowitz,David M, AU - Beneck,George J, AU - Powers,Christopher M, Y1 - 2016/08/05/ PY - 2016/8/6/entrez PY - 2016/8/6/pubmed PY - 2017/3/18/medline KW - electromyography KW - exercise therapy KW - gluteal muscles KW - hip SP - 794 EP - 9 JF - The Journal of orthopaedic and sports physical therapy JO - J Orthop Sports Phys Ther VL - 46 IS - 9 N2 - Study Design Controlled laboratory study, repeated-measures design. Background Previous studies have reported that the superior and inferior portions of the gluteus maximus have different functional roles. Knowledge of how the different portions of the gluteus maximus are activated during therapeutic exercise may lead to more specific exercise prescription. Objective To compare muscle activation of the superior and inferior portions of the gluteus maximus during commonly used therapeutic exercises. Methods Twenty healthy persons participated. Electromyographic (EMG) signals were obtained from the superior and inferior portions of the gluteus maximus using fine-wire electrodes. Normalized EMG signal amplitudes were compared between the superior and inferior gluteus maximus across 11 exercises using a 2-way repeated-measures analysis of variance. Results The superior portion of the gluteus maximus had significantly greater relative EMG activity than the inferior portion of the gluteus maximus during exercises that incorporated elements of hip abduction and/or external rotation (5 of 11 exercises evaluated). There was no significant difference in activation between the superior and inferior portions of the gluteus maximus during the remaining 6 exercises. Conclusion The results of the present study demonstrate preferential activation of the superior portion of the gluteus maximus during exercises that incorporate elements of hip abduction and/or external rotation. In contrast, exercises that primarily involve hip extension target both portions of the gluteus maximus to a similar extent. J Orthop Sports Phys Ther 2016;46(9):794-799. Epub 5 Aug 2016. doi:10.2519/jospt.2016.6493. SN - 1938-1344 UR - https://www.unboundmedicine.com/medline/citation/27494053/Comparison_of_EMG_Activity_of_the_Superior_and_Inferior_Portions_of_the_Gluteus_Maximus_Muscle_During_Common_Therapeutic_Exercises_ L2 - http://www.jospt.org/doi/full/10.2519/jospt.2016.6493?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -