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Effect of 10-week core stabilization exercise training and detraining on pain-related outcomes in patients with clinical lumbar instability

Authors Puntumetakul R, Areeudomwong P, Emasithi A, Yamauchi J

Received 24 June 2013

Accepted for publication 13 September 2013

Published 19 November 2013 Volume 2013:7 Pages 1189—1199


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Rungthip Puntumetakul,1,2 Pattanasin Areeudomwong,1,2 Alongkot Emasithi,1 Junichiro Yamauchi3,4

1School of Physical Therapy, Faculty of Associated Medical Sciences, Muang District, Kohn Kaen, Thailand; 2Back, Neck and Other Joint Pain Research Group, Khon Kaen University, Khon Kaen, Thailand; 3Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan; 4Future Institute for Sport Sciences, Tokyo, Japan

Background and aims: Clinical lumbar instability causes pain and socioeconomic suffering; however, an appropriate treatment for this condition is unknown. This article examines the effect of a 10 week core stabilization exercise (CSE) program and 3 month follow-up on pain-related outcomes in patients with clinical lumbar instability.
Methods: Forty-two participants with clinical lumbar instability of at least 3 months in duration were randomly allocated either to 10 weekly treatments with CSE or to a conventional group (CG) receiving trunk stretching exercises and hot pack. Pain-related outcomes including pain intensity during instability catch sign, functional disability, patient satisfaction, and health-related quality of life were measured at 10 weeks of intervention and 1 and 3 months after the last intervention session (follow-up); trunk muscle activation patterns measured by surface electromyography were measured at 10 weeks.
Results: CSE showed significantly greater reductions in all pain-related outcomes after 10 weeks and over the course of 3 month follow-up periods than those seen in the CG (P<0.01). Furthermore, CSE enhanced deep abdominal muscle activation better than in the CG (P<0.001), whereas the CG had deterioration of deep back muscle activation compared with the CSE group (P<0.01). For within-group comparison, CSE provided significant improvements in all pain-related outcomes over follow-up (P<0.01), whereas the CG demonstrated reduction in pain intensity during instability catch sign only at 10 weeks (P<0.01). In addition, CSE showed an improvement in deep abdominal muscle activation (P<0.01), whereas the CG revealed the deterioration of deep abdominal and back muscle activations (P<0.05).
Conclusion: Ten week CSE provides greater training and retention effects on pain-related outcomes and induced activation of deep abdominal muscles in patients with clinical lumbar instability compared with conventional treatment.

Keywords: clinical lumbar instability, quality of life, detraining effect, trunk muscle activation, core stabilization exercise

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