Transactions on Data Analysis in Social Science

Transactions on Data Analysis in Social Science

Comparison of the Effect of 10 and 20 Grams of Creatine on GH, IGF-1 Levels in Professional Basketball Players after a Session of Intense Interval Training

Document Type : Original Article

Author
Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
Abstract
The present study aimed to compare the effects of 10 and 20 grams of creatine supplementation on growth hormone (GH) and insulin-like growth factor-1 (IGF-1) levels in professional basketball players following a single session of high-intensity interval training. For this purpose, 21 professional basketball players were selected through convenience sampling and randomly assigned to three groups of seven participants each: 10-gram creatine loading, 20-gram creatine loading, and a placebo control group. Blood sampling was conducted at three stages: before the initiation of creatine or placebo supplementation; 24 hours after six days of creatine loading; and 24 hours after performing the high-intensity interval training session. Data were analyzed using repeated-measures analysis of variance (ANOVA). The results indicated that supplementation with either 10 or 20 grams of creatine had no significant effect on GH or IGF-1 levels in professional basketball players. However, high-intensity interval training had a significant effect on the levels of GH and IGF-1, leading to a marked increase in both hormones.
Keywords

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Volume 1, Issue 3
Summer 2019
Pages 153-162

  • Receive Date 21 May 2019
  • Revise Date 09 August 2019
  • Accept Date 21 September 2019