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Can Creatine Supplementation Improve Body Composition and Objective Physical Function in Rheumatoid Arthritis Patients? A Randomized Controlled Trial

Wilkinson, Thomas J., Lemmey, Andrew B., Jones, Jeremy G., Sheikh, Fazal, Ahmad, Yasmeen A., Chitale, Sarang, Maddison, Peter J., O'brien, Thomas D.·2016·Arthritis Care & Research

Abstract

Objective: Rheumatoid cachexia (muscle wasting) in rheumatoid arthritis (RA) patients contributes to substantial reductions in strength and impaired physical function. The objective of this randomized controlled trial was to investigate the effectiveness of oral creatine (Cr) supplementation in increasing lean mass and improving strength and physical function in RA patients. Methods: In a double‐blind design, 40 RA patients were randomized to either 12 weeks’ supplementation of Cr or placebo. Body composition (dual x‐ray absorptiometry and bioelectrical impedance spectroscopy [BIS]), strength, and objectively assessed physical function were measured at baseline, day 6, week 12, and week 24. Data analysis was performed by analysis of covariance. Results: Cr supplementation increased appendicular lean mass (ALM; a surrogate measure of muscle mass) by mean ± SE 0.52 ± 0.13 kg (P = 0.004 versus placebo), and total LM by 0.60 ± 0.37 kg (P = 0.158). The change in LM concurred with the gain in intracellular water (0.64 ± 0.22 liters; P = 0.035) measured by BIS. Despite increasing ALM, Cr supplementation, relative to placebo, failed to improve isometric knee extensor strength (P = 0.408), handgrip strength (P = 0.833), or objectively assessed physical function (P = 0.335–0.764). Conclusion: In patients with RA, Cr supplementation increased muscle mass, but not strength or objective physical function. No treatment‐related adverse effects were reported, suggesting that Cr supplementation may offer a safe and acceptable adjunct treatment for attenuating muscle loss; this treatment may be beneficial for patients experiencing severe rheumatoid cachexia.

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Research works printed but not linked: 37

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Metadata

Authors
Wilkinson, T. J., Lemmey, A. B., Jones, J. G., Sheikh, F., Ahmad, Y. A., Chitale, S., Maddison, P. J., & O'brien, T. D.
Affiliations
  • Bangor University Bangor UK
  • Peter Maddison Rheumatology Centre, Llandudno Hospital, Llandudno, North Wales, UK, and Bangor University Bangor UK
  • Research Institute for Sports and Exercise Sciences, Liverpool John Moores University Liverpool UK
Venue
Arthritis Care & Research
Publisher
Wiley
Published
2016-05-26
Volume
68
Issue
6
Pages
729-737
ISSN
  • 2151-464X
  • 2151-4658
Cited by
41
References
13
Language
en
Funders
Betsi Cadwaladr University Health Board Small Grants Committee (CF17-11)

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