PainSci summary of Wong 2017?This page is one of thousands in the PainScience.com bibliography. It is not a general article: it is focused on a single scientific paper, and it may provide only just enough context for the summary to make sense. Links to other papers and more general information are provided at the bottom of the page, as often as possible. ★★☆☆☆2-star ratings are for studies with flaws, bias, and/or conflict of interest; published in lesser journals. Ratings are a highly subjective opinion, and subject to revision at any time. If you think this paper has been incorrectly rated, please let me know.
This trial measures nice hard-edged primary outcome — the stiffness of the thoracolumbar fascia before and after “myofascial release” — but it’s got big problems.
There’s weirdly no attempt to define the intervention in the abstract (ridiculous given the huge range of possible meanings of “myofascial release”), and this experiment did not, could not possibly isolate “fascial” manipulation: it’s not a test of “fascial” therapy, but of “laying on of hands,” which definitely has all kinds of short term effects. This isn’t remotely the first time minor short term effects of manipulation have been demonstrated — it’s just a slightly novel and fascia-specific way of measuring it, which doesn’t remotely show clinical significance. The effect, even if real and reproducible, might be gone in 30 seconds, or could have been produced by a radically different technique that ignored fascia entirely.
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: Myofascial release (MR) on the posterior thoracolumbar fascia (PLF) is one of the manual techniques aim to restore the normal length and tension of restricted fasciae and muscles.
OBJECTIVES: The present study aimed to quantify the immediate effects of MR on fascial properties of the PLF in healthy men.
DESIGN: Cross-sectional study.
METHOD: Participants (N = 10, aged 22.8 ± 2.0 years) performed a press-down to maximal voluntary contraction (MVC) in the prone position. Deformation of the PLF was measured using an ultrasonographic apparatus. Force output was simultaneously measured. The stiffness index and hysteresis index were then represented by the slope of the loading curve, and the percentage of the area within the loading-unloading curve. One-way ANCOVA was used to compare differences in the stiffness index or hysteresis index of the PLF before and after MR. Two-way repeated ANOVA was used to compare deformation of the PLF or force output after MR.
RESULTS: The primary findings included a decrease (before: 24.1 ± 8.3 vs. after: 18.9 ± 5.3 N/mm; mean difference, -5.2 ± 4.9 N/mm, p = 0.002 < 0.05) in the stiffness index of the PLF and a greater difference in deformation of the PLF between 50% and 100% MVC (before: Def50% = 6.5 ± 1.8 mm and Def100% = 9.8 ± 1.9 mm vs. after: Def50% = 6.4 ± 2.5 mm and Def100% = 10.2 ± 2.4 mm; p = 0.037 < 0.05, power = 58.5%).
CONCLUSION: After MR, stiffness of the PLF decreased in healthy men.
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:
- 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.
- The neck and headaches. Bogduk 2014 Neurol Clin.
- Agreement of self-reported items and clinically assessed nerve root involvement (or sciatica) in a primary care setting. Konstantinou 2012 Eur Spine J.
- Effect of NSAIDs on Recovery From Acute Skeletal Muscle Injury: A Systematic Review and Meta-analysis. Morelli 2017 Am J Sports Med.
- Association of Spinal Manipulative Therapy With Clinical Benefit and Harm for Acute Low Back Pain: Systematic Review and Meta-analysis. Paige 2017 JAMA.