Creatine supplementation does not add to resistance training effects in prostate cancer patients under androgen deprivation therapy: A double-blind randomized trial.

Autor: Fairman CM; Exercise Medicine Research Institute, Edith Cowan University, Australia; Arnold School of Public Health, University of South Carolina, USA., Kendall KL; Exercise Medicine Research Institute, Edith Cowan University, Australia; School of Medical and Health Sciences, Edith Cowan University, Australia., Newton RU; Exercise Medicine Research Institute, Edith Cowan University, Australia; School of Medical and Health Sciences, Edith Cowan University, Australia; School of Human Movement and Nutrition Sciences, University of Queensland, Australia., Hart NH; Exercise Medicine Research Institute, Edith Cowan University, Australia; Human Performance Research Centre, INSIGHT Research Institute, University of Technology Sydney (UTS), Australia., Taaffe DR; Exercise Medicine Research Institute, Edith Cowan University, Australia; School of Medical and Health Sciences, Edith Cowan University, Australia., Lopez P; Pleural Medicine Unit, Institute for Respiratory Health, Australia., Chee R; Exercise Medicine Research Institute, Edith Cowan University, Australia; Radiation Oncology, Genesis Care, Australia; School of Surgery, University of Western Australia, Australia., Tang CI; Exercise Medicine Research Institute, Edith Cowan University, Australia; Department of Radiation Oncology, Sir Charles Gairdner Hospital, Australia., Galvão DA; Exercise Medicine Research Institute, Edith Cowan University, Australia; School of Medical and Health Sciences, Edith Cowan University, Australia. Electronic address: d.galvao@ecu.edu.au.
Jazyk: angličtina
Zdroj: Journal of science and medicine in sport [J Sci Med Sport] 2024 Sep 14. Date of Electronic Publication: 2024 Sep 14.
DOI: 10.1016/j.jsams.2024.09.002
Abstrakt: Objectives: Androgen deprivation therapy (ADT) leads to loss of lean mass (LM) and reduced strength and physical function. Resistance exercise alone can counteract these changes; however, it is unknown if the addition of creatine supplementation can further protect against these ADT-induced toxicities. We compared the effects of creatine supplementation with resistance exercise versus resistance exercise alone in patients with prostate cancer undergoing ADT on LM, muscle strength, and physical function.
Design: A 12-week randomized trial.
Methods: Men with prostate cancer receiving ADT (n = 30) were randomized to either resistance exercise + placebo (PLA) or resistance exercise + creatine (SUPP), with both groups undertaking supervised exercise 3 days per week. Outcomes included whole body and appendicular LM and fat mass (FM) assessed by dual-energy X-ray absorptiometry, as well as muscle strength (chest press, seated low, leg press), and physical function (timed up-and-go, chair rise, 400-m walk) assessed at baseline and following the intervention.
Results: Patients were aged 59-84 years with a BMI of 28.6 kg·m -2 . PLA completed a mean of 30 sessions (83 %) and SUPP a mean of 33 sessions (92 %). Despite similar within-group improvements (p < 0.05) in whole-body LM (PLA +0.6 kg, SUPP +1.3 kg), appendicular LM (PLA +0.5 kg, SUPP +0.6 kg), muscle strength (PLA +8.8-49.3 kg, SUPP +9.4-40.4 kg) and physical function, there were no between group differences (p = 0.078-0.951). No adverse events were reported due to creatine supplementation or resistance exercise.
Conclusions: A short-term program of resistance exercise alone results in meaningful improvements in LM, muscle strength and physical function, with no additional effects of creatine supplementation.
Competing Interests: Declaration of interest statement Daniel A. Galvão had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. All authors had no conflict of interest, including relevant financial interests, activities, relationships, and affiliations to declare relating to this manuscript. The sponsors did not participate in the design or conduct of the study; collection, management, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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