Effect of Preexercise Creatine Ingestion on Muscle Performance in Healthy Aging Males

J Strength Cond Res. 2016 Jun;30(6):1763-6. doi: 10.1519/JSC.0000000000001254.

Abstract

Preexercise creatine supplementation may have a beneficial effect on aging muscle performance. Using a double-blind, repeated measures, crossover design, healthy males (N = 9, 54.8 ± 4.3 years; 92.9 ± 11.5 kg; 179.2 ± 11.1 cm) were randomized to consume creatine (20 g) and placebo (20 g corn starch maltodextrin), on 2 separate occasions (7 days apart), 3 hours before performing leg press and chest press repetitions to muscle fatigue (3 sets at 70% 1-repetition maximum; 1 minute rest between sets). There was a set main effect (p ≤ 0.05) for the leg press and chest press with the number of repetitions performed decreasing similarly for creatine and placebo. These results suggest that a bolus ingestion of creatine consumed 3 hours before resistance exercise has no effect on upper or lower-body muscle performance in healthy aging males.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Aging / drug effects
  • Aging / physiology*
  • Creatine / administration & dosage*
  • Cross-Over Studies
  • Dietary Supplements
  • Double-Blind Method
  • Exercise / physiology*
  • Humans
  • Male
  • Middle Aged
  • Muscle Fatigue / drug effects*
  • Muscle Fatigue / physiology
  • Muscle, Skeletal / drug effects
  • Muscle, Skeletal / physiology*

Substances

  • Creatine