Effect of Therapeutic Exercise on Pain and Disability in the Management of Chronic Nonspecific Neck Pain: Systematic Review and Meta-Analysis of Randomized Trials

Abstract

BackgroundGiven the prevalence of chronic nonspecific neck pain (CNSNP) internationally, attention has increasingly been paid in recent years to evaluating the efficacy of therapeutic exercise (TE) in the management of this condition.PurposeThe purpose of this study was to conduct a current review of randomized controlled trials concerning the effect of TE on pain and disability among people with CNSNP, perform a meta-analysis, and summarize current understanding.Data SourcesData were obtained from MEDLINE, Cumulative Index to Nursing and Allied Health Literature (CINAHL), EMBASE, Physiotherapy Evidence Database (PEDro), and Cochrane Central Register of Controlled Trials (CENTRAL) databases from their inception to August 2012. Reference lists of relevant literature reviews also were tracked.Study SelectionAll published randomized trials without any restriction regarding time of publication or language were considered for inclusion. Study participants had to be symptomatic adults with only CNSNP.Data ExtractionTwo reviewers independently selected the studies, conducted the quality assessment, and extracted the results. Data were pooled in a meta-analysis using a random-effects model.Data SynthesisSeven studies met the inclusion criteria. Therapeutic exercise proved to have medium and significant short-term and intermediate-term effects on pain (g=−0.53, 95% confidence interval [CI]=−0.86 to −0.20, and g=−0.45, 95% CI=−0.82 to −0.07, respectively) and medium but not significant short-term and intermediate-term effects on disability (g=−0.39, 95% CI=−0.86 to 0.07, and g=−0.46, 95% CI=−1.00 to −0.08, respectively).LimitationsOnly one study investigated the effect of TE on pain and disability at follow-up longer than 6 months after intervention.ConclusionsConsistent with other reviews, the results support the use of TE in the management of CNSNP. In particular, a significant overall effect size was found supporting TE for its effect on pain in both the short and intermediate terms.