A comparison of the gluteal muscles and TFL activation during gait in post-meonopause with & without trochanteric pain

A comparison of the gluteal muscles and TFL activation during gait in post-meonopause with & without trochanteric pain

The effect of greater trochanteric pain syndrome (GTPS) on gluteus medius (GMed) and minimus (GMin) activation in post-menopausal women is unknown. The aim of this study was to compare segmental muscle activation and variability of the GMed, GMin and tensor fascia latae (TFL) during gait in post-menopausal women with and without GTPS. Intramuscular electrodes were inserted into segments of GMin (x2) and GMed (x3) and a surface electrode placed on TFL. Ten control participants and 8 with GTPS completed six walking trials. Peak amplitude, average amplitude and time to peak from each phase of the gait cycle (0-30%, 30%- toe off (TO), total stance and swing) were compared between groups using independent t-tests and effect-size (ES) calculations. Variability of muscle activation was calculated using the mean coefficient of variation (CV). Reversal of anterior GMin electromyographic burst pattern and greater average muscle activity was found in the GTPS group compared to controls: 0-TO for anterior GMin (p<0.05), anterior and middle GMed (p<0.01); 0-30% for posterior GMin (p<0.01) and GMed (p<0.05).

No significant differences were identified in TFL. Overall, this study found increased segmental gluteal muscle activation, decreased hip abduction strength, and reduced variability in muscle activation in post-menopausal women with GTPS, compared with controls.

Scott BuxtonResearch article posted by: Scott Buxton

My name is Scott and I am currently the editor of physiospot.

Away from the keyboard I am extended scope physiotherapist working in ED and an acute frailty unit specialising in rapid assessment and discharge of acutely unwell frail older people.

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