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Creatine supplement...
Creatine supplements in patients with idiopathic inflammatory myopathies who are clinically weak after conventional pharmacologic treatment: Six-month, double-blind, randomized, placebo-controlled trial
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Chung, Yuen-Li (author)
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- Alexanderson, Helene (author)
- Karolinska Institutet
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Pipitone, Nicolo (author)
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Morrison, Catherine (author)
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Dastmalchi, Maryam (author)
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- Ståhl Hallengren, Christina (author)
- Lund University,Lunds universitet,Reumatologi och molekylär skelettbiologi,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Rheumatology,Section III,Department of Clinical Sciences, Lund,Faculty of Medicine
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Richards, Selwyn (author)
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Thomas, E. Louise (author)
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Hamilton, Gavin (author)
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Bell, Jimmy D. (author)
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- Lundberg, Ingrid E. (author)
- Karolinska Institutet
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Scott, David L. (author)
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(creator_code:org_t)
- 2007
- 2007
- English.
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In: Arthritis and Rheumatism. - : Wiley. - 1529-0131 .- 0004-3591. ; 57:4, s. 694-702
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Abstract
Subject headings
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- Objective. To test the hypothesis that oral creatine supplements with exercise are more effective than exercise alone in improving muscle function in patients with established dermatomyositis or polymyositis receiving chronic medical therapies who are clinically weak yet stable. Methods. In a 6-month, 2-center, double-blind, randomized controlled trial, patients were randomized to receive oral creatine supplements (8 days, 20 gm/day then 3 gm/day) or placebo. All patients followed a home exercise program. The primary outcome was aggregate functional performance time (AFPT), reflecting the ability to undertake high-intensity exercise. Secondary outcomes included a Functional index measuring endurance and muscle bioenergetics on P-31 magnetic resonance spectroscopy (P-31 MRS). Patients were receiving stable immunosuppressive treatment and/or corticosteroids. Results. A total of 37 patients with polymyositis or dermatomyositis were randomized (19 to creatine, 18 to placebo); 29 completed 6 months. Intent-to-treat analyses demonstrated that AFPT improved significantly at 6 months with creatine (median decrease 13%, range -32-8%) compared with placebo (median decrease 3%, range -13-16%; P = 0.029 by Mann-Whitney U test). A completer analysis also showed significant benefits from creatine (P = 0.014). The functional index improved significantly with both creatine and placebo (P < 0.05 by paired Wilcoxon's rank sum test), with a significant benefit between groups in the completer analysis only. Phosphocreatine/beta-nucleoside triphosphate ratios using MRS increased significantly in the creatine group (P < 0.05) but not in the control group. No clinically relevant adverse events were associated with creatine. Conclusion. Oral creatine supplements combined with home exercises improve functional performance without significant adverse effects in patients with polymyositis or dermatomyositis. They appear safe, effective, and inexpensive.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Reumatologi och inflammation (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Rheumatology and Autoimmunity (hsv//eng)
Keyword
- P-31 magnetic resonance spectroscopy
- muscle function
- exercise
- creatine supplementation
- dermatomyositis
- polymyositis
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Chung, Yuen-Li
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Alexanderson, He ...
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Pipitone, Nicolo
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Morrison, Cather ...
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Dastmalchi, Mary ...
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Ståhl Hallengren ...
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show more...
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Richards, Selwyn
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Thomas, E. Louis ...
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Hamilton, Gavin
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Bell, Jimmy D.
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Lundberg, Ingrid ...
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Scott, David L.
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Rheumatology and ...
- Articles in the publication
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Arthritis and Rh ...
- By the university
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Lund University
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Karolinska Institutet