The effect of low back pain on neuromuscular control in cyclists

Marineau Belanger, E., Boon, D.-M., Descarreaux, M. et Abboud, J. (2022). The effect of low back pain on neuromuscular control in cyclists. Journal of Sports Sciences . pp. 1-10. ISSN 0264-0414 DOI 10.1080/02640414.2022.2061819

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Résumé

ABSTRACT
This study was designed to identify neuromuscular adaptations of low back pain (LBP) cyclists , and the impact of a cycling effort on spinal shrinkage. Forty-eight trained cyclists rode their road bike on a smart trainer for 1-hour. Surface electromyography (EMG) recorded muscle activity of the lumbar erector spinae (LES), 3D motion analysis system recorded kinematic of the trunk, and stadiometry measured spinal height. Statistical comparisons were made using repeated measure ANOVAs. The LBP group presented increase in pain levels throughout the effort (p < 0.001). A significant group difference was only observed for the thoracic angle (p = 0.03), which was less flexed for LBP. The one-hour cycling effort (time effect) significantly increased the trunk flexion (p < 0.001) and thoracic flexion (p < 0.001) for both groups. Significant lower LES activation (35% less) was observed at the end of the effort  as well as a decrease in spinal height (p = 0.01) for both groups. Neuromuscular adaptations to cycling effort is identified by a decrease in LES EMG amplitude and an increase flexion of the trunk. Adaptation to pain is seen by an increase in thoracic flexion. Despite these adaptations, LBP cyclists could not ride their bike pain-free.

Type de document:	Article
Mots-clés libres:	Road cycling EMG kinematic Stadiometry
Date de dépôt:	05 juill. 2022 11:37
Dernière modification:	08 avr. 2023 04:00
Version du document déposé:	Post-print (version corrigée et acceptée)
URI:	https://depot-e.uqtr.ca/id/eprint/10221

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