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.
OBJECTIVE: To compare parameters of muscle energy metabolism in patients with fibromyalgia syndrome (FMS) and sedentary controls.
METHODS: Thirteen female FMS patients and 13 female sedentary controls underwent a standardized clinical assessment (including dolorimeter measurements of the upper trapezius and tibialis anterior muscles) and a standardized aerobic fitness test including measurement of maximum oxygen uptake (VO2max). Phosphorus (31P) magnetic resonance spectroscopy studies of the upper trapezius and tibialis anterior muscles were then performed in FMS patients and controls, at rest and during and following a muscle-fatiguing exercise protocol.
RESULTS: FMS patients and controls had similar levels of VO2max and of maximum voluntary contraction (MVC) of the upper trapezius and tibialis anterior muscles. After controlling for VO2max and MVC, measurements of phosphocreatine (PCr), inorganic phosphate (P(i)), and intracellular pH in these muscles were not significantly different in FMS patients versus sedentary controls either at rest, during exercise, or during recovery. In the patients with FMS, no correlation was found between overall or local pain severity and the principal muscle metabolic parameter, PCr/P(i). Inverse correlations between dolorimeter scores at 2 muscle sites and tibialis anterior PCr/P(i) were found both in patients and in controls.
CONCLUSION: This study demonstrates that under the conditions studied, muscle energy metabolism in FMS is no different than that in sedentary controls. These findings do not support the hypothesis that detectable defects in muscle energy metabolism occur in FMS.
One article on PainScience.com cites Simms 1994 as a source:
- PS A Rational Guide to Fibromyalgia — The science of the mysterious disease of pain, exhaustion, and mental fog
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.