Comparison of yoga and dynamic neuromuscular stabilization exercise in chronic low back pain on magnetic resonance imaging of lumbar multifidus- protocol for a randomized controlled trial

Prem Venkatesan, Soundararajan K, Thomas J Kishen, Seema Janardhan, Sathish Kumar Cr, Prem Venkatesan, Soundararajan K, Thomas J Kishen, Seema Janardhan, Sathish Kumar Cr

Abstract

Background: Degeneration of Lumbar muscle in chronic low back pain (CLBP) is characterized by an increase in fat infiltration of paraspinal muscle, decrease in the cross-sectional area (CSA) of lumbar multifidus muscle (LMM) and increased thickness of Thoracolumbar fascia (TLF) by 25%. The study objective is to compare the effects of yoga and dynamic neuromuscular stabilization (DNS) exercise on CSA, fat infiltration of LMM with magnetic resonance imaging (MRI), and TLF thickness using musculoskeletal ultrasound imaging (MSK-USI) in CLBP.

Methods: One hundred and forty-four participants with CLBP, which persisted longer than three months, will be recruited for this trial. Both group interventions focused on LMM. The experimental group will receive structured yoga sessions, and the Control Group will receive exercise based on DNS. In each group, exercises will be performed for 3-5 days/week and progressed for 12 weeks. Baseline data will be collected, followed by the recording of primary outcome measure (MRI) and secondary outcome measures (MSK-USI, Oswestry disability index, visual analogue score, optimism, self-efficacy, mood, physical activity, fear of movement, pain catastrophizing, and coping) at baseline and the end of 12th weeks. The normality of data will be verified. Based on the data distribution, within-group analysis and between-group analysis will be performed.

Discussion: This will be the first RCT to compare the effect of yoga and DNS exercise among chronic low back pain participants. This will provide evidence of these interventions' impact on CSA, fat infiltration of LMM, and thickness of TLF in CLBP.

Registration number: CTRI/2021/08/035984 (This trial was registered prospectively).

Keywords: Chronic low back pain; Dynamic neuromuscular stabilization exercise; Multifidus; Thoracolumbar fascia; Yoga.

Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

© 2022 Published by Elsevier Inc.

Figures

Fig. 1
Fig. 1
Overview of trial design – CONSORT flow chart.
Fig. 2
Fig. 2
Screening form.
Fig. 3
Fig. 3
Randomization form.
Fig. 4
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Randomization sealed envelope.
Fig. 5
Fig. 5
Follow-up log form.

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