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Long-term creatine supplementation improves muscular performance during resistance training in older women
  • North University of Paraná (UNOPAR)
  • Universidade Estadual de Londrina (UEL)
  • Universidade Estadual Paulista (UNESP)
  • Santa Catarina Federal University
This study examined the effects of long-term creatine supplementation combined with resistance training (RT) on the one-repetition maximum (1RM) strength, motor functional performance (e.g., 30-s chair stand, arm curl, and getting up from lying on the floor tests) and body composition (e.g., fat-free mass, muscle mass, and % body fat using DEXA scans) in older women. Eighteen healthy women (64.9 ± 5.0 years) were randomly assigned in a double-blind fashion to either a creatine (CR, N = 9) or placebo (PL, N = 9) group. Both groups underwent a 12-week RT program (3 days week-1), consuming an equivalent amount of either creatine (5.0 g day-1) or placebo (maltodextrin). After 12 week, the CR group experienced a greater (P < 0.05) increase (Δ%) in training volume (+164.2), and 1RM bench press (+5.1), knee extension (+3.9) and biceps curl (+8.8) performance than the PL group. Furthermore, CR group gained significantly more fat-free mass (+3.2) and muscle mass (+2.8) and were more efficient in performing submaximal-strength functional tests than the PL group. No changes (P > 0.05) in body mass or % body fat were observed from pre- to post-test in either group. These results indicate that long-term creatine supplementation combined with RT improves the ability to perform submaximal-strength functional tasks and promotes a greater increase in maximal strength, fat-free mass and muscle mass in older women. © 2012 Springer-Verlag Berlin Heidelberg.
Issue Date: 
European Journal of Applied Physiology, v. 113, n. 4, p. 987-996, 2013.
Time Duration: 
  • Aging
  • Creatine
  • Ergogenic aid
  • Muscle strength
  • Resistance training
  • creatine
  • performance enhancing substance
  • age
  • aged
  • analysis of variance
  • body composition
  • Brazil
  • controlled clinical trial
  • controlled study
  • diet supplementation
  • double blind procedure
  • drug effect
  • female
  • human
  • middle aged
  • motor activity
  • muscle contraction
  • muscle strength
  • organ size
  • photon absorptiometry
  • radiography
  • randomized controlled trial
  • resistance training
  • sex difference
  • skeletal muscle
  • time
  • Absorptiometry, Photon
  • Age Factors
  • Aged
  • Analysis of Variance
  • Body Composition
  • Dietary Supplements
  • Double-Blind Method
  • Female
  • Humans
  • Middle Aged
  • Motor Activity
  • Muscle Contraction
  • Muscle Strength
  • Muscle, Skeletal
  • Organ Size
  • Performance-Enhancing Substances
  • Resistance Training
  • Sex Factors
  • Time Factors
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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