Effect of Preexercise Creatine Ingestion on Muscle Performance in Healthy Aging MalesBaker, Taylor P.; Candow, Darren G.; Farthing, Jonathan P.The Journal of Strength & Conditioning Research: June 2016 - Volume 30 - Issue 6 - p 1763–1766 doi: 10.1519/JSC.0000000000001254 Original Research Abstract Author Information Baker, TP, Candow, DG, and Farthing, JP. Effect of preexercise creatine ingestion on muscle performance in healthy aging males. J Strength Cond Res 30(6): 1763–1766, 2016—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. 1Faculty of Kinesiology & Health Studies, University of Regina, Regina, Saskatchewan, Canada; and 2College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada Address correspondence to Darren G. Candow, Darren.Candow@uregina.ca. Copyright © 2016 by the National Strength & Conditioning Association.