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  • Title: Can progressive resistance training reverse cachexia in patients with rheumatoid arthritis? Results of a pilot study.
    Author: Marcora SM, Lemmey AB, Maddison PJ.
    Journal: J Rheumatol; 2005 Jun; 32(6):1031-9. PubMed ID: 15940763.
    Abstract:
    OBJECTIVE: . A Phase II trial was performed as a preliminary test of the efficacy and safety of progressive resistance training (PRT) as adjunct treatment for rheumatoid cachexia. METHODS: Ten mildly disabled patients with well-controlled rheumatoid arthritis (RA) trained, on average, 2.5 times per week for 12 weeks. Ten age and sex matched RA patients with similar disease characteristics were non-randomly assigned to a control group. Body composition, physical function, and disease activity were assessed pre and post intervention period. RESULTS: Between group comparisons at followup by ANCOVA using baseline scores as covariate showed significant increases in fat-free mass (+1253 g, p = 0.004), total body protein (+1063 g, p = 0.044), and arm (+280 g, p = 0.005) and leg (+839 g, p = 0.001) lean mass (a proxy measure of total body skeletal muscle mass) in response to PRT with no exacerbation of disease activity. There was also a trend for loss of fat mass in the trunk (-752 g, p = 0.084) and a significant reduction in percent body fat (-1.1%, p = 0.047). Changes in body composition were associated with improvements in various measures of physical function. CONCLUSION: Intense PRT with adequate volume seems to be an effective and safe intervention for stimulating muscle growth in patients with RA. Pending confirmation of these results in a larger randomized controlled trial that includes patients with more active and severe disease, a similar PRT program should be included in the management of RA as adjunct treatment for cachexia.
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