Paraspinal muscle oxygenation and mechanical efficiency are reduced in individuals with chronic low back pain. - Université de Lille Accéder directement au contenu
Article Dans Une Revue Scientific Reports Année : 2024

Paraspinal muscle oxygenation and mechanical efficiency are reduced in individuals with chronic low back pain.

Résumé

This study aimed to compare the systemic and local metabolic responses during a 5-min trunk extension exercise in individuals with chronic low back pain (CLBP) and in healthy individuals. Thirteen active participants with CLBP paired with 13 healthy participants performed a standardised 5-min trunk extension exercise on an isokinetic dynamometer set in continuous passive motion mode. During exercise, we used near-infrared spectroscopy to measure tissue oxygenation (TOI) and total haemoglobin-myoglobin (THb). We used a gas exchange analyser to measure breath-by-breath oxygen consumption (V̇O2) and carbon dioxide produced (V̇CO2). We also calculated mechanical efficiency. We assessed the intensity of low back pain sensation before and after exercise by using a visual analogue scale. In participants with CLBP, low back pain increased following exercise (+ 1.5 units; p < 0.001) and THb decreased during exercise (− 4.0 units; p = 0.043). Paraspinal muscle oxygenation (65.0 and 71.0%, respectively; p = 0.009) and mechanical efficiency (4.7 and 5.3%, respectively; p = 0.034) were both lower in participants with CLBP compared with healthy participants. The increase in pain sensation was related to the decrease in tissue oxygenation (R2 = − 0.420; p = 0.036). Decreases in total haemoglobin-myoglobin and mechanical efficiency could involve fatigability in exercise-soliciting paraspinal muscles and, therefore, exacerbate inabilities in daily life. Given the positive correlation between tissue oxygenation and exercise-induced pain exacerbation, muscle oxygenation may be related to persisting and crippling low back pain.
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hal-04540316 , version 1 (10-04-2024)

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Agathe Anthierens, André Thevenon, Nicolas Olivier, Patrick Mucci. Paraspinal muscle oxygenation and mechanical efficiency are reduced in individuals with chronic low back pain.. Scientific Reports, 2024, Scientific Reports, 14, pp.4943. ⟨10.1038/s41598-024-55672-8⟩. ⟨hal-04540316⟩
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