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Knee Extensor Strength Is Associated with Pressure Pain Thresholds in Adults with Fibromyalgia

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  • W Michael Hooten
  • Casandra J Rosenberg
  • Jason S Eldrige
  • Wenchun Qu

Abstract

Objective: Individuals with fibromyalgia (FM) have lower muscle strength and lower pressure pain thresholds (PPT). The primary aim of this study was to determine the associations between muscle strength and PPT in adults with FM to test the hypothesis that greater measures of muscle strength would be associated with greater values of PPT. Secondary aims included determining the effects of pain severity and the peak uptake of oxygen (Vo2) on the associations between muscle strength and PPT. Methods: Knee extensor and flexor strength (N = 69) was measured in the dominant leg using a dynamometer, and PPT was assessed using an electronic algometer. Pain severity was determined using the Multidimensional Pain Inventory, and peak Vo2 uptake was quantified using an electronically braked cycle ergometer. Results: Univariable linear regression analysis demonstrated a significant association between PPT (dependent variable) and isometric knee extensor (P

Suggested Citation

  • W Michael Hooten & Casandra J Rosenberg & Jason S Eldrige & Wenchun Qu, 2013. "Knee Extensor Strength Is Associated with Pressure Pain Thresholds in Adults with Fibromyalgia," PLOS ONE, Public Library of Science, vol. 8(4), pages 1-6, April.
    • Handle: RePEc:plo:pone00:0059930
    DOI: 10.1371/journal.pone.0059930
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