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Effects of yoga, strength training and advice on back pain: a randomized controlled trial.

ABSTRACT: Among the working population, non-specific low-back pain and neck pain are one of the most common reasons for sickness absenteeism. The aim was to evaluate the effects of an early intervention of yoga - compared with strength training or evidence-based advice - on sickness absenteeism, sickness presenteeism, back and neck pain and disability among a working population.A randomized controlled trial was conducted on 159 participants with predominantly (90%) chronic back and neck pain. After screening, the participants were randomized to kundalini yoga, strength training or evidence-based advice. Primary outcome was sickness absenteeism. Secondary outcomes were sickness presenteeism, back and neck pain and disability. Self-reported questionnaires and SMS text messages were completed at baseline, 6 weeks, 6 and 12 months.The results did not indicate that kundalini yoga and strength training had any statistically significant effects on the primary outcome compared with evidence-based advice. An interaction effect was found between adherence to recommendations and sickness absenteeism, indicating larger significant effects among the adherers to kundalini yoga versus evidence-based advice: RR?=?0.47 (CI 0.30; 0.74, p?=?0.001), strength training versus evidence-based advice: RR?=?0.60 (CI 0.38; 0.96, p?=?0.032). Some significant differences were also found for the secondary outcomes to the advantage of kundalini yoga and strength training.Guided exercise in the forms of kundalini yoga or strength training does not reduce sickness absenteeism more than evidence-based advice alone. However, secondary analyses reveal that among those who pursue kundalini yoga or strength training at least two times a week, a significantly reduction in sickness absenteeism was found. Methods to increase adherence to treatment recommendations should be further developed and applied in exercise interventions.Clinicaltrials.gov NCT01653782, date of registration: June, 28, 2012, retrospectively registered.

SUBMITTER: Bramberg EB

PROVIDER: S-EPMC5372262 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Effects of yoga, strength training and advice on back pain: a randomized controlled trial.

Brämberg Elisabeth Björk EB Bergström Gunnar G Jensen Irene I Hagberg Jan J Kwak Lydia L

BMC musculoskeletal disorders 20170329 1

<h4>Background</h4>Among the working population, non-specific low-back pain and neck pain are one of the most common reasons for sickness absenteeism. The aim was to evaluate the effects of an early intervention of yoga - compared with strength training or evidence-based advice - on sickness absenteeism, sickness presenteeism, back and neck pain and disability among a working population.<h4>Methods</h4>A randomized controlled trial was conducted on 159 participants with predominantly (90%) chron ...[more]

PMID: 28356091

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Project description:BackgroundChronic low back pain is the most frequent pain condition in Veterans and causes substantial suffering, decreased functional capacity, and lower quality of life. Symptoms of post-traumatic stress, depression, and mild traumatic brain injury are highly prevalent in Veterans with back pain. Yoga for low back pain has been demonstrated to be effective for civilians in randomized controlled trials. However, it is unknown if results from previously published trials generalize to military populations.Methods/designThis study is a parallel randomized controlled trial comparing yoga to education for 120 Veterans with chronic low back pain. Participants are Veterans ≥18 years old with low back pain present on at least half the days in the past six months and a self-reported average pain intensity in the previous week of ≥4 on a 0-10 scale. The 24-week study has an initial 12-week intervention period, where participants are randomized equally into (1) a standardized weekly group yoga class with home practice or (2) education delivered with a self-care book. Primary outcome measures are change at 12 weeks in low back pain intensity measured by the Defense and Veterans Pain Rating Scale (0-10) and back-related function using the 23-point Roland Morris Disability Questionnaire. In the subsequent 12-week follow-up period, yoga participants are encouraged to continue home yoga practice and education participants continue following recommendations from the book. Qualitative interviews with Veterans in the yoga group and their partners explore the impact of chronic low back pain and yoga on family relationships. We also assess cost-effectiveness from three perspectives: the Veteran, the Veterans Health Administration, and society using electronic medical records, self-reported cost data, and study records.DiscussionThis study will help determine if yoga can become an effective treatment for Veterans with chronic low back pain and psychological comorbidities.Trial registrationClinicalTrials.gov: NCT02224183.

Project description:Study designMethodological study nested within a multicentre randomised controlled trial (RCT) of yoga plus usual general practitioner (GP) care vs usual GP care for chronic low back pain.ObjectiveTo explore the treatment effects of non-compliance using three approaches in an RCT evaluating yoga for low back pain.Summary of background dataA large multicentre RCT using intention-to-treat (ITT) analysis found that participants with chronic low back pain who were offered a 12-week progressive programme of yoga plus usual GP care had better back function than those offered usual GP care alone. However, ITT analysis can underestimate the effect of treatment in those who comply with treatment. As such, the data were analysed using other approaches to assess the problem of non-compliance. The main outcome measure was the self-reported Roland Morris Disability Questionnaire (RMDQ).MethodsComplier average causal effect (CACE) analysis, per-protocol analysis and on-treatment analysis were conducted on the data of participants who were fully compliant, predefined as attendance of at least three of the first six sessions and at least three other sessions. The analysis was repeated for participants who had attended at least one yoga session (i.e. any compliance), which included participants who were fully compliant. Each approach was described, including strengths and weaknesses, and the results of the different approaches were compared with those of the ITT analysis.ResultsFor the participants who were fully compliant (n=93, 60%), a larger beneficial treatment effect was seen using CACE analysis compared with per-protocol, on-treatment and ITT analyses at 3 and 12 months. The difference in mean change in RMDQ score between randomised groups was -3.30 [95% confidence interval (CI) -4.90 to -1.70, P<0.001] at 3 months and -2.23 (95% CI -3.93 to -0.53, P=0.010) at 12 months for CACE analysis, -3.12 (95% CI -4.26 to -1.98, P<0.001) at 3 months and -2.11 (95% CI -3.33 to -0.89, P=0.001) at 12 months for per-protocol analysis, and -2.91 (95% CI -4.06 to -1.76, P<0.001) at 3 months and -2.10 (95% CI -3.31 to -0.89, P=0.001) at 12 months for on-treatment analysis. For the participants who demonstrated any compliance (n=133, 85%), the results were generally consistent with the fully compliant group at 3 months, but the treatment effect was smaller. The difference in mean change in RMDQ score between randomised groups was -2.45 (95% CI -3.67 to -1.24) for CACE analysis, -2.30 (95% CI -3.43 to 1.17) for per-protocol analysis and -2.15 (95% CI -3.25 to -1.06) for on-treatment analysis, which was slightly less than that for ITT analysis. In contrast, at 12 months, per-protocol and on-treatment analyses showed a larger treatment effect compared with CACE and ITT analyses: per protocol analysis -1.86 (95% CI -3.02 to -0.71), on-treatment analysis -1.99 (95% CI -3.13 to -0.86) and CACE analysis -1.67 (95% CI -2.95 to -0.40).ConclusionITT analysis estimated a slightly smaller treatment effect in participants who complied with treatment. When examining compliance, CACE analysis is more rigorous than per-protocol and on-treatment analyses. Using CACE analysis, the treatment effect was larger in participants who complied with treatment compared with participants who were allocated to treatment, and the difference between ITT and CACE analyses for the fully compliant group at 3 months was small but clinically important. Per-protocol and on-treatment analyses may produce unreliable estimates when the effect of treatment is small.International standard randomised trial number registerISRCTN 81079604.

Project description:INTRODUCTION:Chronic low back pain (cLBP) is prevalent, especially among military veterans. Many cLBP treatment options have limited benefits and are accompanied by side effects. Major efforts to reduce opioid use and embrace nonpharmacological pain treatments have resulted. Research with community cLBP patients indicates that yoga can improve health outcomes and has few side effects. The benefits of yoga among military veterans were examined. DESIGN:Participants were randomized to either yoga or delayed yoga treatment in 2013-2015. Outcomes were assessed at baseline, 6 weeks, 12 weeks, and 6 months. Intention-to-treat analyses occurred in 2016. SETTING/PARTICIPANTS:One hundred and fifty military veterans with cLBP were recruited from a major Veterans Affairs Medical Center in California. INTERVENTION:Yoga classes (with home practice) were led by a certified instructor twice weekly for 12 weeks, and consisted primarily of physical postures, movement, and breathing techniques. MAIN OUTCOME MEASURES:The primary outcome was Roland-Morris Disability Questionnaire scores after 12 weeks. Pain intensity was identified as an important secondary outcome. RESULTS:Participant characteristics were mean age 53 years, 26% were female, 35% were unemployed or disabled, and mean back pain duration was 15 years. Improvements in Roland-Morris Disability Questionnaire scores did not differ between the two groups at 12 weeks, but yoga participants had greater reductions in Roland-Morris Disability Questionnaire scores than delayed treatment participants at 6 months -2.48 (95% CI= -4.08, -0.87). Yoga participants improved more on pain intensity at 12 weeks and at 6 months. Opioid medication use declined among all participants, but group differences were not found. CONCLUSIONS:Yoga improved health outcomes among veterans despite evidence they had fewer resources, worse health, and more challenges attending yoga sessions than community samples studied previously. The magnitude of pain intensity decline was small, but occurred in the context of reduced opioid use. The findings support wider implementation of yoga programs for veterans. TRIAL REGISTRATION:This study is registered at www.clinicaltrials.gov NCT02524158.

Project description:BackgroundChronic low back pain (cLBP) and chronic neck pain (cNP) are highly prevalent conditions and common reasons for disability among military personnel. Yoga and other mind-body interventions have been shown to safely decrease pain and disability in persons with cLBP and/or cNP but have not been adequately studied in active duty military personnel. The objective of this study was to examine the feasibility and acceptability of delivering 2 types of yoga (hatha and restorative) to a sample of active-duty military personnel with cLBP/cNP.MethodsMilitary personnel with cLBP and/or cNP (n = 49; 59% men) were randomized to either hatha or restorative yoga interventions. Interventions consisted of in-person yoga 1-2x weekly for 12 weeks. Feasibility and acceptability were measured by rates of recruitment, intervention attendance, attrition, adverse events, and satisfaction ratings. Health outcomes including pain and disability were measured at baseline, 12 weeks, and 6 months. Means and effect sizes are presented.ResultsRecruitment was completed ahead of projections. Over 90% of participants agreed or strongly agreed that they enjoyed participation, liked the instructor, and would like to continue yoga. Retention rates were 86% and 80% at 12 week and 6 month assessments, respectively. Intervention attendance was adequate but lower than expected. There were small to moderate reductions in back-pain related disability, pain severity and pain interference, and improvements in quality of life, grip strength, and balance. In general, effects were larger for those who attended at least 50% of intervention classes. Participants with cNP tended to have smaller outcome improvements, but conclusions remain tentative given small sample sizes.ConclusionsResults demonstrate feasibility for conducting a randomized controlled comparative effectiveness trial of yoga for cLBP and cNP among active duty military personnel. Acceptability was also established. Ongoing work will enhance the intervention for cNP and establish feasibility at another military facility in preparation for a fully-powered comparative effectiveness trial.ClinicalTrials #NCT03504085; registered April 20, 2018.

Project description:BackgroundYoga is effective for mild to moderate chronic low back pain (cLBP), but its comparative effectiveness with physical therapy (PT) is unknown. Moreover, little is known about yoga's effectiveness in underserved patients with more severe functional disability and pain.ObjectiveTo determine whether yoga is noninferior to PT for cLBP.Design12-week, single-blind, 3-group randomized noninferiority trial and subsequent 40-week maintenance phase. (ClinicalTrials.gov: NCT01343927).SettingAcademic safety-net hospital and 7 affiliated community health centers.Participants320 predominantly low-income, racially diverse adults with nonspecific cLBP.InterventionParticipants received 12 weekly yoga classes, 15 PT visits, or an educational book and newsletters. The maintenance phase compared yoga drop-in classes versus home practice and PT booster sessions versus home practice.MeasurementsPrimary outcomes were back-related function, measured by the Roland Morris Disability Questionnaire (RMDQ), and pain, measured by an 11-point scale, at 12 weeks. Prespecified noninferiority margins were 1.5 (RMDQ) and 1.0 (pain). Secondary outcomes included pain medication use, global improvement, satisfaction with intervention, and health-related quality of life.ResultsOne-sided 95% lower confidence limits were 0.83 (RMDQ) and 0.97 (pain), demonstrating noninferiority of yoga to PT. However, yoga was not superior to education for either outcome. Yoga and PT were similar for most secondary outcomes. Yoga and PT participants were 21 and 22 percentage points less likely, respectively, than education participants to use pain medication at 12 weeks. Improvements in yoga and PT groups were maintained at 1 year with no differences between maintenance strategies. Frequency of adverse events, mostly mild self-limited joint and back pain, did not differ between the yoga and PT groups.LimitationsParticipants were not blinded to treatment assignment. The PT group had disproportionate loss to follow-up.ConclusionA manualized yoga program for nonspecific cLBP was noninferior to PT for function and pain.Primary funding sourceNational Center for Complementary and Integrative Health of the National Institutes of Health.

Project description:BackgroundPoor sleep is common among adults with chronic low back pain (cLBP), but the influence of cLBP treatments, such as yoga and physical therapy (PT), on sleep quality is under studied.ObjectiveEvaluate the effectiveness of yoga and PT for improving sleep quality in adults with cLBP.DesignSecondary analysis of a randomized controlled trial.SettingAcademic safety-net hospital and 7 affiliated community health centers.ParticipantsA total of 320 adults with cLBP.InterventionTwelve weekly yoga classes, 1-on-1 PT sessions, or an educational book.Main measuresSleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI) global score (0-21) at baseline, 12 weeks, and 52 weeks. Additionally, we also evaluated how the proportion of participants who achieved a clinically meaningful improvement in sleep quality (> 3-point reduction in PSQI) at 12 weeks varied by changes in pain and physical function at 6 weeks.Key resultsAmong participants (mean age = 46.0, 64% female, 82% non-white), nearly all (92%) reported poor sleep quality (PSQI > 5) at baseline. At 12 weeks, modest improvements in sleep quality were observed among the yoga (PSQI mean difference [MD] = - 1.19, 95% confidence interval [CI] - 1.82, - 0.55) and PT (PSQI MD = - 0.91, 95% CI - 1.61, - 0.20) groups. Participants who reported a ≥ 30% improvement in pain or physical function at 6 weeks, compared with those who improved < 10%, were more likely to be a sleep quality responder at 12 weeks (odds ratio [OR] = 3.51, 95% CI 1.73, 7.11 and OR = 2.16, 95% CI 1.18, 3.95, respectively). Results were similar at 52 weeks.ConclusionIn a sample of adults with cLBP, virtually all with poor sleep quality prior to intervention, modest but statistically significant improvements in sleep quality were observed with both yoga and PT. Irrespective of treatment, clinically important sleep improvements at the end of the intervention were associated with mid-intervention pain and physical function improvements.Trial registrationClinicalTrials.gov Identifier: NCT01343927.

Dataset Information

Effects of yoga, strength training and advice on back pain: a randomized controlled trial.

Publications

Effects of yoga, strength training and advice on back pain: a randomized controlled trial.

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