Electromyographic analysis of core muscle activity during pole dance movements using the knee lock

Abstract

Problem Statement: Current literature lacks comprehensive research on the manner in which variations in pole dance movements affect core stabilizing muscle activity. Purpose: This study aimed to analyze the electromyographic activity of the rectus abdominis, obliquus externus abdominis, and erector spinae (lumbar) muscles during different pole dance movements using the knee-lock technique to stabilize the body on a vertical bar in horizontal, vertical, and inverted positions. Approach: An experimental study was conducted with a convenience sample of ten female pole dance practitioners, each with over one year of experience in the physical activity. The electromyographic activity of the rectus abdominis, obliquus externus abdominis, and erector spinae lumbar muscles was recorded during the execution of three pole dance movements – Indian, Genius, and Monkey – in a randomized and counterbalanced order. The electromyographic signal obtained during all exercises was quantified in the time domain using the root mean square and normalized by the maximal voluntary isometric contraction. Data were collected using simple differential surface electrodes and analyzed using repeated measures analysis of variance. Results: The rectus abdominis, obliquus externus abdominis, and erector spinae lumbar muscles demonstrated greater electromyographic activity during the Genius movement (from moderate to very high activation) compared to the Indian and Monkey moves (low activation). Conclusions: These results can facilitate the selection of movements for possible progression in pole dance training and performance. Additionally, they can be used to increase the muscular resistance and neuromuscular control of the trunk, reduce the risk of injury, and improve overall physical health.