Method for Assessing Brain Changes Associated With Gluteus Maximus Activation

Abstract

T T RESULTS:It is feasible to measure the CE of the gluteus maximus with TMS. The intraclass correlation coefficients for all TMS outcome measures ranged from 0.73 to 0.97. The ranges of minimal detectable change, with respect to mean values for each TMS variable, were larger for MEP amplitude (304.7-585.4 µV) compared to those for cortical silent period duration (25.3-40.8 milliseconds) and MEP latency (1.1-2.1 milliseconds). T T CONCLUSION:The present study demonstrated a feasible method for using TMS to measure CE of the gluteus maximus. Small minimal detectable change values for the cortical silent period and MEP latency provide a reference for future studies.

Does Transcranial Direct Current Stimulation Combined with Peripheral Electrical Stimulation Have an Additive Effect in the Control of Hip Joint Osteonecrosis Pain Associated with Sickle Cell Disease? A Protocol for a One-Session Double Blind, Block-Randomized Clinical Trial

“…The positioning of the electrode will be determined after palpation of the gluteus maximus muscle during a moderate voluntary contraction. The reference electrode will be placed over the hip greater trochanter or S2 (Fisher et al, 2013 ). The EMG signals will be amplified 3,000 times, filtered, bandpassed between 1 Hz and 2 kHz, with sampling rate maintained at 4 kHz using Signal v.06 software (Cambridge Electronic Design, UK).…”

“…Neuronavigated TMS could further help with this measurement problem, but this resource is not available at the study laboratory. Nonetheless, the original study to validate TMS cortical mapping of the gluteus maximus muscle used a system similar to the one available for this study (Fisher et al, 2013 ).…”

Groin pain syndrome: an association of different pathologies and a case presentation

“…E) Cycle of specific FKT based on: i) strengthening the adductorial muscles through their elongation and detension ii) strengthening the abdominal muscles, especially the internal and external oblique abdominis, the inferior third of the rectus abdominis, and the transverse abdominis muscle iii) rebalancing exercises for adductors and abdominal muscles, based on core stability iv) strengthening of the hip flexors, extensors, abductor and rotators muscles v) Optimization of hip ROM. The rationale for a cycle of specific FKT is based on the fact that the strengthening of the hip flexors, extensors 72,73 , abductor 72,74 and rotators muscles 75 may reduce hip joint loads and the eventual subsequent progression of OA 31 . Moreover the efficacy of conservative treatment in the recto-abductor tendinopathy is confirmed by the fact that the vast majority of patients respond positively to conservative treatment, both in case of overuse tendinopathy or in muscle-tendon injury 76 .…”

Quadriceps Function in ACL Reconstructed Patients With and Without Knee Osteoarthritis

“…257 Several authors have used TMS to measure cortical excitability in the lower extremities of varied cohorts. 24,87,90,229,258 Although afferent signals project to the spinal cord directly, joint afferents are known to have extensive supraspinal projections to the cerebral cortex as well. 86 Supraspinal influence on descending cortical output following injury is often neglected within the context of musculoskeletal research, specifically of the lower extremity, and has only begun to be better understood over the last decade.…”

“…Although TMS protocols widely vary in the literature with respect to coil type and placement, measures of interest, and technique to obtain measurements, acceptable levels of reliability have been established. Reliability of TMS measures has primarily been established in the upper extremities263 ; however more recent researchers have begun to look at the hip258 , knee, and ankle 264 musculature with success. In contrast to assessment technique requiring an electrical stimulus, TMS relies on a magnetic pulse of energy, thereby reducing patient discomfort during testing.…”