One article on PainSci cites Simms 1994: A Rational Guide to Fibromyalgia
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.
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.