Effect of Bovine Colostrum on Anaerobic Exercise Performance and Plasma Insulin-Like Growth Factor I

J Sports Sci. 2003 Jul;21(7):577-88. doi: 10.1080/0264041031000101935.

Abstract

In this study, we examined the effects of bovine colostrum on peak vertical jump power (VJpeak), peak cycle power (CPpeak), alactic anaerobic work capacity, resistance exercise one-repetition maxima (1-RM) and plasma insulin-like growth factor I (IGF-I) concentrations. Using a randomized, double-blind, placebo-controlled, parallel design, 51 males completed 8 weeks of resistance and plyometric training while consuming 60 g x day(-1) of bovine colostrum (n = 26) or concentrated whey protein powder (n = 25). Peak vertical jump power, peak cycle power, alactic anaerobic work capacity, 1-RM and plasma IGF-I were not different between groups at baseline (P > 0.33). Peak vertical jump power and peak cycle power were still not significantly different between groups by week 4 (VJpeak: bovine colostrum, 7231 +/- 488 W; whey protein, 7214 +/- 530 W; P = 0.99; CPpeak: bovine colostrum, 1272 +/- 202 W; whey protein, 1232 +/- 208 W; P = 0.99). By week 8, however, peak vertical jump power (bovine colostrum, 7370 +/- 503 W; whey powder, 7237 +/- 481 W; 95% confidence intervals, 54 to 170 W; P < 0.01) and peak cycle power (bovine colostrum, 1400 +/- 215 W; whey protein, 1311 +/- 192 W; 95% confidence intervals, 20 to 61 W; P < 0.01) were significantly higher in the bovine colostrum condition. Alactic anaerobic work capacity and 1-RM increased (P < 0.001), but the increases were not different between groups (P > 0.08). Plasma IGF-I did not change in either group (P = 0.55). We conclude that bovine colostrum supplementation during training significantly increased peak anaerobic power, but had no effect on alactic anaerobic work capacity, 1-RM or plasma IGF-I.

Publication types

  • Clinical Trial
  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Anaerobic Threshold / drug effects*
  • Anaerobic Threshold / physiology*
  • Animals
  • Biomarkers / blood
  • Body Height / physiology
  • Body Mass Index
  • Cattle
  • Dietary Supplements
  • Double-Blind Method
  • Eating / drug effects
  • Eating / physiology
  • Exercise / physiology*
  • Growth Substances / pharmacology*
  • Humans
  • Insulin-Like Growth Factor I / analysis*
  • Insulin-Like Growth Factor I / drug effects*
  • Male
  • Milk Proteins
  • Motor Activity / drug effects
  • Motor Activity / physiology
  • Physical Education and Training

Substances

  • Biomarkers
  • Growth Substances
  • Milk Proteins
  • colostrum growth factor
  • Insulin-Like Growth Factor I