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Τετάρτη 28 Δεκεμβρίου 2016

Repetitive Peripheral Magnetic Neurostimulation of Multifidus Muscles Combined with Motor Training Influences Spine Motor Control and Chronic Low Back Pain

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Publication date: Available online 28 December 2016
Source:Clinical Neurophysiology
Author(s): Hugo Massé-Alarie, Louis-David Beaulieu, Richard Preuss, Cyril Schneider
ObjectiveThe study tested whether combining repetitive peripheral magnetic neurostimulation (RPMS) and motor training of the superficial multifidus muscle (MF) better improved the corticomotor control of spine than training alone in chronic low back pain (CLBP).MethodsTwenty-one participants with CLBP were randomly allocated to [RPMS+training] and [Sham+training] groups for three sessions (S1-S3) over a week where MF was stimulated before training (volitional contraction). Training was also home-practiced twice a day. Changes were tested at S1 and S3 for anticipatory postural adjustments (APAs) of MF and semi-tendinosus (ST), MF EMG activation, cortical motor plasticity (transcranial magnetic stimulation) and pain/disability.ResultsThe RPMS group showed immediate decrease of pain at S1, then improvement of MF activation, ST APA, M1 facilitation, and pain/disability at S3. Changes were larger when brain excitability was lower at baseline. Disability index remained improved one month later.ConclusionsCombining RPMS with training of MF in CLBP impacted motor planning, MF and lumbopelvic spine motor control and pain/disability one week after the onset of protocol. Brain plasticity might have favoured motor learning and improved daily lumbopelvic spine control without pain generation.SignificanceClinically, RPMS impacted the function by improving the gains beyond those reached by training alone in CLBP.



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