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Creatine supplementation and physical training in patients with COPD: a double blind, placebo-controlled study.
Medicin/Thoraxsektionen, sjukgymnastikkliniken Karolinska universitetssjukhuset Solna.
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Björn Ekblom's research group.ORCID iD: 0000-0001-5885-2378
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2006 (English)In: International journal of chronic obstructive pulmonary disease, ISSN 1176-9106, Vol. 1, no 4, 445-53 p.Article in journal (Refereed) Published
Abstract [en]

STUDY OBJECTIVES: Patients with chronic obstructive pulmonary disease (COPD) have low exercise capacity and low content of high energetic phosphates in their skeletal muscles. The aim of the present study was to investigate whether creatine supplementation together with exercise training may increase physical performance compared with exercise training in patients with COPD. DESIGN: In a randomized, double-blind, placebo-controlled study, 23 patients with COPD (forced expiratory volume in one second [FEV1] < 70% of predicted) were randomized to oral creatine (n = 13) or placebo (n = 10) supplementation during an 8-week rehabilitation programme including exercise training. Physical performance was assessed by Endurance Shuttle Walking Test (ESWT), dyspnea and leg fatigue with Borg CR- 10, quality of life with St George's Respiratory Questionnaire (SGRQ). In addition, lung function test, artery blood gases, grip strength test, muscle strength and fatigue in knee extensors were measured. RESULTS: COPD patients receiving creatine supplementation increased their average walking time by 61% (ESWT) (p < 0.05) after the training period compared with 48% (p = 0.07) in the placebo group. Rated dyspnea directly after the ESWT decreased significantly from 7 to 5 (p < 0.05) in the creatine group. However, the difference between the groups was not statistically significant neither in walking time nor in rated dyspnea. Creatine supplementation did not increase the health related quality of life, lung function, artery blood gases, grip strength and knee extensor strength/fatigue. CONCLUSIONS: Oral creatine supplementation in combination with exercise training showed no significant improvement in physical performance, measured as ESWT, in patients with COPD compared with exercise training alone.

Place, publisher, year, edition, pages
2006. Vol. 1, no 4, 445-53 p.
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Physiology
Identifiers
URN: urn:nbn:se:gih:diva-1409PubMedID: 18044100OAI: oai:DiVA.org:gih-1409DiVA: diva2:375166
Available from: 2010-12-07 Created: 2010-10-25 Last updated: 2015-09-17Bibliographically approved

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CiteExportLink to record
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