Five articles on PainSci cite Sherman 2011: 1. Quite a Stretch 2. Complete Guide to Low Back Pain 3. The Complete Guide to Neck Pain & Cricks 4. The Tyranny of Yoga, Meditation, and Mindfulness 5. Get in the Pool for Pain
PainSci notes on Sherman 2011:
This experiment compared the effects of yoga, a normal stretching class, and an educational booklet on chronic low back pain. The primary findings were that both yoga and stretching seemed to be modestly effective, but neither was better than the other. Back in 2005, the same authors got similar results comparing yoga to conventional therapeutic exercise.
The research has been widely reported as “stretching and yoga work,” with a few writers emphasizing that yoga was no better. However, I haven’t seen anyone report that both stretching and yoga are equally damned here with faint praise, and quite possibly illusory praise: the effect size was modest, just 2.5 points on a scale of 11, and some or all that effect may well be attributable to bias and frustrebo (frustrated placebo) caused by a lack of blinding. Subjects deprived of either a lovely stretching or yoga experience may have reported a more negative experience.
I analyze this study in greater detail in my advanced tutorial, Complete Guide to Low Back Pain
original abstract †Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.
BACKGROUND: Chronic low back pain is a common problem lacking highly effective treatment options. Small trials suggest that yoga may have benefits for this condition. This trial was designed to determine whether yoga is more effective than conventional stretching exercises or a self-care book for primary care patients with chronic low back pain.
METHODS: A total of 228 adults with chronic low back pain were randomized to 12 weekly classes of yoga (92 patients) or conventional stretching exercises (91 patients) or a self-care book (45 patients). Back-related functional status (modified Roland Disability Questionnaire, a 23-point scale) and bothersomeness of pain (an 11-point numerical scale) at 12 weeks were the primary outcomes. Outcomes were assessed at baseline, 6, 12, and 26 weeks by interviewers unaware of treatment group.
RESULTS: After adjustment for baseline values, 12-week outcomes for the yoga group were superior to those for the self-care group (mean difference for function, -2.5 [95% CI, -3.7 to -1.3]; P < .001; mean difference for symptoms, -1.1 [95% CI, -1.7 to -0.4]; P < .001). At 26 weeks, function for the yoga group remained superior (mean difference, -1.8 [95% CI, -3.1 to -0.5]; P < .001). Yoga was not superior to conventional stretching exercises at any time point.
CONCLUSION: Yoga classes were more effective than a self-care book, but not more effective than stretching classes, in improving function and reducing symptoms due to chronic low back pain, with benefits lasting at least several months. Trial Registration clinicaltrials.gov Identifier: NCT00447668.
This page is part of the PainScience BIBLIOGRAPHY, which contains plain language summaries of thousands of scientific papers & others sources. It’s like a highly specialized blog. A few highlights:
- The CANBACK trial: a randomised, controlled clinical trial of oral cannabidiol for people presenting to the emergency department with acute low back pain. Bebee 2021 Med J Aust.
- Relationships Between Sleep Quality and Pain-Related Factors for People with Chronic Low Back Pain: Tests of Reciprocal and Time of Day Effects. Gerhart 2017 Ann Behav Med.
- Modulation in the elastic properties of gastrocnemius muscle heads in individuals with plantar fasciitis and its relationship with pain. Zhou 2020 Sci Rep.
- Association Between Plantar Fasciitis and Isolated Gastrocnemius Tightness. Nakale 2018 Foot Ankle Int.
- A Bayesian model-averaged meta-analysis of the power pose effect with informed and default priors: the case of felt power. Gronau 2017 Comprehensive Results in Social Psychology.