Effects of high dose oral creatine supplementation on anaerobic capacity of elite wrestlers.
OBJECTIVE
The purpose of this study was to investigate the effect of high dose oral creatine supplementation on anaerobic capacity of elite wrestlers.


METHODS



METHODS
comparative randomized design.


METHODS
Wingate anaerobic tests of the participants were taken at the Human Performance Laboratory of the Department of Physical Education and Sports in The Middle East Technical University, Ankara, Turkey.


METHODS
20 active international level wrestlers participated (22 to 27 years old).


METHODS
the daily dosage of creatine or placebo was divided into 4 equal amounts (5 gx4 = 20 g). Every 5 g of supplement was dissolved in 250 ml water and it was given to participants 1 hour before breakfast, lunch, dinner, and workout session.


METHODS
subjects underwent a 30-s Wingate Anaerobic tests until exhaustion in pre- and post-tests. After the pretest measurements were completed, participants were classified as creatine (Cr., n=10) and placebo (Pl., n=10) groups with regard to their average anaerobic power scores obtained during the test.


RESULTS
Results of paired "t"-test revealed that there was no significant change in placebo group between pre- and post-test in average and peak anaerobic power. However, average and peak power mean scores obtained from post-test (8.123+/-0.448 W/kg and 10.523 +/-1.004 W/kg) were significantly (p<0.01) higher than pretest (7.233+/-0.483 W/kg and 8.992+/- 0.665 W/kg) for creatine group. Results of the independent "t"-test also indicated that the mean gained scores of creatine group in average and peak power were significantly higher than placebo group (p<0.01).


CONCLUSIONS
This study demonstrates that short-term high dose oral creatine supplementation has an ergogenic effect on anaerobic capacity of elite wrestlers.
Koçak
S
S
Physical Education and Sport Department, Middle East Technical University, Ankara, Turkey. settar@metu.edu.tr
Karli
U
U
D000328:Adult; D015308:Anaerobic Threshold / Q000187:drug effects*; D003401:Creatine / Q000008:administration & dosage*; D019587:Dietary Supplements; D004305:Dose-Response Relationship, Drug; D006801:Humans; D008297:Male; D014952:Wrestling / Q000502:physiology*
D003401:Creatine