Effects of bovine colostrum supplementation on serum igf-1, igg,
hormone, amino acid and saliva iga concentrations during
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