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Date Permissions Signed
Date of Award
Master of Science (MS)
Health and Human Development
Buddhadev, Harsh H. (Harsh Harish)
Brilla, Lorraine R., 1955-
Chalmers, Gordon R.
Creatine supplementation is recommended to improve repetitive sprint cycling performance. Creatine absorption is increased in the presence of electrolytes. The purpose of this study was to investigate the effect of creatine-electrolyte (CE) supplementation on peak power and total work performed during repeated cycling sprints. Peak power and total work performed by 38 cyclists (CE group: n = 17; 23.4 ± 4.0 years; placebo (P) group: n = 18; 23.4 ± 4.0 years) were measured on a Velotron cycle ergometer as they completed five 15-s cycling sprints with two minutes of recovery between sprints. Participants’ body composition was estimated using three site skinfold measurements. Mixed-model ANOVAs were used for statistical analyses. A supplement-time interaction showed a 4% increase in peak power (27 W; p = 0.025) and a 5% increase in total work (1862 J; p = 0.023) from pre- to post-supplementation for the CE group. For the P group, no differences were observed in these variables from pre- to post-testing. Fat free mass increased by 2% (1.4 kg; p = 0.001) for the CE group, whereas no differences were found for the P group. For the CE group, a strong association (r = 0.626; p = 0.007) was observed between the increases in peak power and fat free mass. A CE supplement improves repeated short duration cycling sprint performance when sprints are interspersed with adequate recovery periods. Additionally, the ergogenic effect of CE supplement is associated with an increase in fat free mass.
Creatine--Physiological effect, Electrolytes--Physiological effect, Body composition, Cycling
Western Washington University
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Crisafulli, Daniel L., "Creatine and Electrolyte Supplementation Improves Repetitive Sprint Cycling Performance" (2017). WWU Graduate School Collection. 563.