{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T06:24:31Z","timestamp":1771482271209,"version":"3.50.1"},"reference-count":98,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2022,8,14]],"date-time":"2022-08-14T00:00:00Z","timestamp":1660435200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Portuguese Foundation for Science and Technology","award":["UID04045\/2020"],"award-info":[{"award-number":["UID04045\/2020"]}]},{"name":"Portuguese Foundation for Science and Technology","award":["UIDB\/04748\/2020"],"award-info":[{"award-number":["UIDB\/04748\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objectives: Fibromyalgia are heterogeneous and differ from patient to patient; however, the most reported are general myalgia and at specific points associated with fatigue and certain psychological adversities. Physical activity can mitigate the effects of the symptoms. However, the associations between fibromyalgia-related fatigue, self-esteem, anxiety, depression, satisfaction with life and physical activity are unclear. Therefore, the aim of the present study was to understand the associations between these symptoms and whether there are differences between these associations across two distinct cultures. Materials and Methods: A total of 473 women aged between 28 and 75 years (M = 49.27; SD \u00b1 8.28) completed five questionnaires about fibromyalgia-related fatigue, physical activity, anxiety, depression, self-esteem, and satisfaction with life. Results: Fibromyalgia-related fatigue was positively associated with depression and anxiety, depression and anxiety were negatively associated with self-esteem, self-esteem was positively associated with satisfaction with life, satisfaction with life was positively associated with physical activity and there were no differences in terms of the perceptions and associations of these variables between Portuguese and Brazilian patients. Conclusions: Our results showed the significant role of associations between these variables and a similarity in the perception and relationship of the variables between the two cultures.<\/jats:p>","DOI":"10.3390\/medicina58081097","type":"journal-article","created":{"date-parts":[[2022,8,15]],"date-time":"2022-08-15T03:33:20Z","timestamp":1660534400000},"page":"1097","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Understanding the Associations across Fibromyalgia-Related Fatigue, Depression, Anxiety, Self-Esteem Satisfaction with Life and Physical Activity in Portuguese and Brazilian Patients: A Structural Equation Modeling Analysis"],"prefix":"10.3390","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8774-0500","authenticated-orcid":false,"given":"Marcos C.","family":"Alvarez","sequence":"first","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior, 6201-001 Covilh\u00e3, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Luiza L.","family":"Albuquerque","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior, 6201-001 Covilh\u00e3, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9283-312X","authenticated-orcid":false,"given":"Henrique P.","family":"Neiva","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior, 6201-001 Covilh\u00e3, Portugal"},{"name":"Research Center in Sport, Health and Human Development (CIDESD), Tr\u00e1s-os-Montes and Alto Douro University, 5000-558 Vila Real, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8156-3291","authenticated-orcid":false,"given":"Luis","family":"Cid","sequence":"additional","affiliation":[{"name":"Research Center in Sport, Health and Human Development (CIDESD), Tr\u00e1s-os-Montes and Alto Douro University, 5000-558 Vila Real, Portugal"},{"name":"Life Quality Research Centre (CIEQV), 2400-901 Leiria, Portugal"},{"name":"Sport Sciences School of Rio Maior, Polytechnic of Santar\u00e9m (ESDRM-IPSantar\u00e9m), 2040-413 Rio Maior, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4587-5903","authenticated-orcid":false,"given":"Diogo S.","family":"Teixeira","sequence":"additional","affiliation":[{"name":"Sport Sciences School of Rio Maior, Polytechnic of Santar\u00e9m (ESDRM-IPSantar\u00e9m), 2040-413 Rio Maior, Portugal"},{"name":"Research Center in Sport, Physical Education, Exercise and Health (CIDEFES), 1749-024 Lisbon, Portugal"},{"name":"Faculty of Physical Education and Sport, Lus\u00f3fona University (ULHT\/FEFD), 1749-024 Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2034-0585","authenticated-orcid":false,"given":"Rui","family":"Matos","sequence":"additional","affiliation":[{"name":"Life Quality Research Centre (CIEQV), 2400-901 Leiria, Portugal"},{"name":"ESECS\u2014Polytechnic of Leiria, 2411-901 Leiria, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5485-9430","authenticated-orcid":false,"given":"Ra\u00fal","family":"Antunes","sequence":"additional","affiliation":[{"name":"Life Quality Research Centre (CIEQV), 2400-901 Leiria, Portugal"},{"name":"ESECS\u2014Polytechnic of Leiria, 2411-901 Leiria, Portugal"},{"name":"Center for Innovative Care and Health Technology (ciTechCare), 2415-396 Leiria, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liane","family":"L\u00facio","sequence":"additional","affiliation":[{"name":"Primary Health Care Unit, 2040-349 Rio Maior, Portugal"},{"name":"Lisboa e Vale do Tejo\u2014Regional Health Administration, 2005-143 Santar\u00e9m, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0156-4030","authenticated-orcid":false,"given":"Leandro","family":"Sant\u2019Ana","sequence":"additional","affiliation":[{"name":"Post Graduate Program in Physical Education, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Brazil"},{"name":"Strength Training Studies and Research Laboratory, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7179-6814","authenticated-orcid":false,"given":"Diogo","family":"Monteiro","sequence":"additional","affiliation":[{"name":"Research Center in Sport, Health and Human Development (CIDESD), Tr\u00e1s-os-Montes and Alto Douro University, 5000-558 Vila Real, Portugal"},{"name":"Life Quality Research Centre (CIEQV), 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