2000 Pre-Olympic Congress Sports Medicine and Physical Education International Congress on Sport Science 7-13 September - Brisbane, Australia 2000

Bovine colostrum supplementation during training increases vertical jump performance J. D. Buckley*, M.J. Abbott, G.D. Brinkworth & P.B.D. Whyte University of South Australia, South Australia The purpose of this study was to determine the effects of supplementation with concentrated bovine colostrum protein powder (intact™) on plasma insulin-like growth factor I (IGF-I) concentrations and vertical jump (VJ) height during 8 weeks of resistance and plyometric training. A randomised, double-blind, placebo controlled, parallel design was used in which 51 active males completed 8 weeks of training whilst consuming 60 g·day-1 of either intact™ supplement (n=26) or concentrated whey protein powder (n=25). Plasma IGF-I concentrations and VJ height were assessed prior to, and after 4 and 8 weeks of supplementation and training. Plasma IGF-I concentrations did not change from baseline in either group (p=0.55). VJ height had increased similarly in both groups by week 4, but had increased more in the intact™ group by week 8 (intact™ 3.0±0.6cm increase, Placebo 1.3±0.7cm increase; p=0.006). It was concluded that oral supplementation with intact™ concentrated bovine colostrum protein powder did not affect plasma IGF-I concentrations, but did enhance training adaptations in VJ height.

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