The Effect of Short-term Creatine Supplementation Suppresses the Cortisol Response to a HighIntensity Swim-Sprint Workout

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The Effect of Short-term Creatine Supplementation Suppresses the Cortisol Response to a HighIntensity Swim-Sprint Workout

July 6, 2021 Medicine and Medical 0

The primary goal of this study was to look at the effects of creatine on the metabolic hormone cortisol in male swimmers. The study included seventeen male swimmers (24.5 3.9 years) with at least 5 years of competitive swimming experience and swimming training at least four times per week. Subjects took creatine (20 g/day) plus maltodextrin (1 g/kg/day) or maltodextrin (1 g/kg/day) only for 6 days before a progressive swim-sprint workout. The swim-sprint workout consisted of eight progressive 100-meter freestyle sets beginning at 65 percent maximal intensity and progressing to a 100 percent maximum capacity set on the eighth and final set. Cortisol levels were measured both before and after the swim-sprint workout (within 5 minutes). There was a significant reduction in cortisol concentrations following the progressive swim-sprint workout in the creatine + maltodextrin group (15.5 0.99 g/dL) compared to the maltodextrin only group (18.33 2.61 g/dL) after 6 days of creatine monohydrate supplementation. Based on these findings, it appears that creatine loading (20 grams per day for 6 days) significantly reduces the cortisol response to progressive intensity 100-meter freestyle swimming sets. This discovery could be useful for athletes who are putting in a lot of effort.

Author (S) Details

V. Dobgenski
Department of Physical Education, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil.

M. G. Santos
Department of Physical Education, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil.

B. Campbell
Department of Physical Education and Exercise Science, University of South Florida, Tampa, Florida.

Dr. R. B. Kreider
Department of Health & Kinesiology, Texas A&M University, College Station, Texas.

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