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Abstract
Objectives: Fatigue is a major complaint of patients with systemic lupus erythemasosus (SLE). While several studies have demonstrated the benefits of exercise, the effects of supervised training were never compared to those of home training.
Methods: Forty-five SLE patients suffering from fatigue, as defined by Krupp’s fatigue severity scale (FSS) ≥ 3.7, were randomized in 3 groups: supervised training group (STG), home training group (HTG), and control group (CG). Primary outcome was the change in FSS at month 3. In parallel, we measured the physical working capacity measured at 75% of the predicted maximal heart rate (PWC75%/kg) and the modified Borg’s scale to assess perception of exertion.
Results: Both STG and HTG, but not the CG, statistically improved their FSS at month 3. By contrast, the PWC75%/kg and the Borg’s scale did not improve in none of the groups. Surprinsingly, compliance was similar and low (±50%) in both exercise groups. Moreover, less compliant patients improved their fatigue as much as more compliant patients.
Conclusions: Patients included in the STG and the HTG similarly improved their fatigue, irrespectively of their level of compliance, raising the possibility that the beneficial effect on fatigue was not only exercise-related.
Acknowledgments
This study was made possible by a grant from the Association Lupus Erythémateux, via the Fonds pour la Recherche Scientifique en Rhumatologie/Fondation Roi Baudouin. The authors are most grateful to Bernadette Van Leeuw, Chair of the Belgian French-speaking patient self-help group, for her ever renewed support, to Xavier Janssens for his endless dedication to promote rheumatology research in Belgium and to patients who participated in this study.