The Effects of Creatine Supplementation and Plyometric Training on Vertical Jump and Sprint Performance

The purpose of this study was to determine the effects of Cr supplementation on vertical jump and sprint performance during 4 weeks of plyometric training. Using a randomized, double-blind design, subjects were assigned to receive either Cr or placebo (Pl) for 4-weeks. A total of 13 subjects completed the study (6 = Pl, 7 = Cr). Data was collected at baseline (T0), post-loading (T1), and post-maintenance (T2). The interaction over time between treatment groups revealed significantly greater increases in body weight, body mass index (BMI), and average Wingate power (p < 0.05) for the Cr group. Using the absolute change in values, t-tests revealed significant increases in body weight (mean gain = 1.0 kg, p = 0.003) and TBW (mean gain = 0.4 kg, p = 0.03) in the Cr group compared to Pl after T1. No significant changes in single jump height or shuttle sprint time were seen were seen with either Cr or Pl groups.