What is it about?
The paper focuses on looking if there exist any differences between males and females in the recruitment of back muscles. For that purpose, we ask 19 males and 17 females to produce intense contractions in a back-dedicated exercise. We highlighted some differences in muscle strategy, in particular for the quadratus lumborum muscle.
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Why is it important?
This study first highlights the importance of the quadratus lumborum for a back extension exercise in addition to thoracic and lumbar paravertebral muscles. This muscle was more activated in women for high-loading exercise. We also showed the impact of high loads on EMG amplitudes. For a physiotherapist point of view, load strategy and sex-related differences are important for rehabilitation.
Perspectives
Results about the quadratus lumborum were relatively unexpected in term of electromyography signals. It brings new opportunities for the development of musculoskeletal models.
Simon Hinnekens
Universite catholique de Louvain
Read the Original
This page is a summary of: Sex-related differences in motor control strategies during isometric contractions in the Sorensen test posture with different external loading, Journal of Back and Musculoskeletal Rehabilitation, May 2023, IOS Press,
DOI: 10.3233/bmr-220058.
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