Effects of bovine colostrum supplementation on serum igf-1, igg, hormone, amino acid and saliva iga concentrations during training. Mero, Antti, Heidi Miikkulainen, Jarmo Riski, Raimo Pakkanen, Jouni Aalto, and Timo Takala. Department of Biology of Physical Activity, University of Jyv[umlaut]askyl[umlaut]a, Finland, Viable Bioproducts Ltd., Turku Technology, Center, Biocity, Turku, Finland
APStracts 4:0237A, 1997.
The purpose of this study was to examine the effects of bovine colostrum supplementation (Bioenervi_) on serum insulin-like growth factor 1 (IGF-1), immunoglobulin G (IgG), hormone, amino acid and saliva immunoglobulin A (IgA) concentrations during a strength and speed training period. Nine male sprinters and jumpers underwent three randomized experimental training treat- ments of 8 days separated by 13 days. The only difference in the treatments was the drink of 125 ml consumed per day. Posttraining increases were noticed for serum IGF-1 in the Bioenervi_ 25 ml treatment (125 ml contained 25 ml Bioenervi_) and especially in the Bioenervi_ 125 ml treatment (125 ml contained 125 ml Bioenervi_) compared to the placebo (normal milk whey) treatment (P<0.05). The change in IGF-1 concentration during the 8-day periods correlated positively with the change in insulin concentration during the same periods with Bioenervi_ 25 ml treatment (r=0.68; P=0.045) and with Bioenervi_ 125 ml treatment (r=0.69; P=0.038). Serum IgG, hormone, amino acid and saliva IgA responses were similar during the three treatments. It appears that a bovine colostrum supplement (Bioenervi_) may increase serum IGF-1 concentration in athletes during strength and speed training.

Received 3 May 1996; accepted in final form 6 June 1997.
APS Manuscript Number A426-6.
Article publication pending Journal of Applied Physiology.
ISSN 1080-4757 Copyright 1997 The American Physiological Society.
Published in APStracts on 1 July 1997