Strengthening and neuromuscular reeducation of the gluteus maximus in a triathlete with exercise-associated cramping of the hamstrings

The Journal of Orthopaedic and Sports Physical Therapy
Tracey WagnerChristopher M Powers

Abstract

Case report. To highlight the effects of an intervention program consisting of strengthening and neuromuscular reeducation of the gluteus maximus in an elite triathlete with exercise-associated muscle cramping (EAMC). Researchers have described 2 theories concerning the etiology of EAMC: (1) muscle fatigue and (2) electrolyte deficit. As such, interventions for EAMC typically consist of stretching/strengthening of the involved muscle and/or supplements to restore electrolyte imbalances. The patient was a 42-year-old male triathlete with a primary complaint of recurrent cramping of his right hamstring muscle, which prevented him from completing races at his desired pace. Strength testing revealed gluteus maximus muscle weakness bilaterally. Electromyographic (EMG) analysis (surface electrodes, 1560 Hz) revealed that the right hamstrings were being activated excessively during terminal swing and the first half of the stance phase (48.1% maximum voluntary isometric contraction [MVIC]). Following the intervention, the patient was able to complete 3 triathlons without hamstring cramping. Strength testing revealed that the right hip extension strength improved from 35.6 to 54.7 kg, and activation of the hamstrings during terminal swi...Continue Reading

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Citations

Jan 11, 2012·Current Reviews in Musculoskeletal Medicine·Scott SiverlingEdwin P Su
Nov 20, 2012·The Journal of Orthopaedic and Sports Physical Therapy·David M SelkowitzChristopher M Powers
Feb 2, 2010·The Journal of Orthopaedic and Sports Physical Therapy·Bryan C Heiderscheit
Apr 11, 2014·Journal of Sports Sciences·Kevin C Miller, John A Burne
Jun 15, 2011·PM & R : the Journal of Injury, Function, and Rehabilitation·Robert L BakerMichael Fredericson
Mar 11, 2011·Clinical Biomechanics·John D WillsonJ Scott Straker
Jun 15, 2011·Journal of Bodywork and Movement Therapies·Jason Brumitt
Apr 22, 2015·Sports Biomechanics·Megan A BryantonLoren Z F Chiu
Aug 6, 2016·The Journal of Orthopaedic and Sports Physical Therapy·David M SelkowitzChristopher M Powers
Sep 19, 2015·Journal of Athletic Training·Douglas J CasaSusan W Yeargin
Jan 8, 2017·Muscle & Nerve·Kevin C MillerJeffrey E Edwards
Aug 11, 2017·Muscle & Nerve·Kevin C MillerBlaine C Long
Sep 6, 2018·Pediatric Exercise Science·Lütfiye AkkurtÖznur Tunca Yilmaz
Oct 28, 2017·Journal of Strength and Conditioning Research·Kevin McCurdyDerrick Yuen
Jul 29, 2020·Current Reviews in Musculoskeletal Medicine·Wesley TroyerNeeru Jayanthi
Jul 31, 2020·International Journal of Environmental Research and Public Health·Tomás Gallego-IzquierdoDaniel Pecos-Martín
Feb 6, 2017·Research in Sports Medicine·Darryl J CochraneScott C Pinfold
Nov 30, 2019·Sports Medicine·Matthew Buckthorpe, Francesco Della Villa

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