Gluteus Maximus inhibition in proximal hamstring tendinopathy

Abstract

OBJECTIVE: The purpose of this study was to demonstrate the inhibition of the ipsilateral Gluteus Maximus in the presence of proximal hamstring tendinopathy and to collect information about its cause. DESIGN: We studied three subjects with clinical evidence of proximal hamstring tendinopathy previously submitted to conservative treatment with poor results and exhibiting severe hypotrophy and diminished strength in the ipsilateral Gluteus Maximus in comparison with contralateral Gluteus Maximus. INTERVENTIONS: Patients were submitted to evaluation of the Gluteus Maximus inhibition through handheld dynamometer strength measurements before and during neuromuscular electrical stimulation. RESULTS: The three subjects exhibited increased strength in the affected Gluteus Maximus (mean 43%; range 27%-62%) when neuromuscular electrical stimulation was added in the evaluations. CONCLUSION: This study demonstrates that individuals with proximal hamstring tendinopathy present ipsilateral Gluteus Maximus inhibition with hypotrophy and diminished strength. Neuromuscular electrical stimulation partially restores muscular strength. Further studies are required to evaluate the effects of this type of treatment.