• Arch Phys Med Rehabil · Sep 2015

    Association of Physical Fitness With Fibromyalgia Severity in Women: The al-Ándalus Project.

    • Alberto Soriano-Maldonado, Marius Henriksen, Víctor Segura-Jiménez, Virginia A Aparicio, Ana Carbonell-Baeza, Manuel Delgado-Fernández, Kirstine Amris, and Jonatan R Ruiz.
    • Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain. Electronic address: asm@ugr.es.
    • Arch Phys Med Rehabil. 2015 Sep 1;96(9):1599-605.

    ObjectivesTo assess the association between physical fitness and fibromyalgia (FM) severity in women with FM as well as to assess whether different fitness components present an independent relation with FM severity.DesignPopulation-based cross-sectional study.SettingUniversity facilities and FM associations.ParticipantsWomen with FM (N=444).InterventionsNot applicable.Main Outcome MeasuresFM severity was assessed with the Revised Fibromyalgia Impact Questionnaire (FIQR). Aerobic fitness (6-min walk test), muscle strength (handgrip, chair stand, and arm curl tests), flexibility (chair sit and reach and back scratch tests), and motor agility (8 foot Up and Go test) were measured with the Senior Fitness Test battery and digital dynamometry. A standardized composite score (hereafter "global fitness profile") was calculated and divided into quintiles.ResultsOverall, physical fitness was significantly associated with the FIQR total and subscale scores, regardless of the fitness test used (all P<.05). The 6-minute walk and back-scratch tests were independently associated with the FIQR total score (R(2)=.88; both P<.005). The group with the highest global fitness profile had 16% lower FM severity than did the group with the lowest global fitness profile (P<.001).ConclusionsOur results suggest that higher physical fitness is consistently associated with lower FM severity in women with FM. Aerobic fitness and flexibility present independent associations with FM severity. However, the FIQR variability explained by these fitness tests was rather low (<10%), and further research on the potential disagreement between performance-based physical fitness and different self-reported outcomes in women with FM is warranted.Copyright © 2015 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

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