| Summary: | 碩士 === 國立體育學院 === 運動科學研究所 === 81 === The purpose of the study is to investigate the changes of blood
biochemical parameters, such as lactic acid, blood glucose ,in
athletes conditioned for endurance, based on the three blood
tests taken BEFORE and AFTER carbohydate beverage intake, and
AFTER COMPETITION. The subjects are twelve (N=12) healthy male
middle-long distance athletes (age 20.38 .plmin. 3.37 year).
Each subject attends three road races. Before each race the
subjects were given carbohyrate beverage and water. All the
twelve athletes were randomly divided into three groups, with
four athletes in each group. Each group were treated with three
beverages 300 ml athernately before three competition. The
three beverages were water, Maltodextrin (12%), and Nutri-
Powder .blksq. (12%), respectively. The three sports
competition of beverages were presented in counter balanced
design. The blood samples were taken from the viens of the
subjects before intake, 45 minutes after intake, and 5 minutes
after competition. 1).The Blood glucose and lactic acid
concentration: The Maltodextrin-intake groups have higher
values in blood glucose and lactic acid concentration levels
than the other two groups. The values analyzed from before-,
after-intake and after-competition blood samples are
significantly different (p<0.05). Also moreover, the values
among the three group are significantly different(p<0.05).
2).Body weight: Three groups all show signicant decrease in
after-competition (p<.05). The changes among the three groups
do not show significant difference (p>.05). 3).The competition
mean (m/sec) of the running speed: Maltodextrin-group > Nutri-
Powder .blksq. > Water-group. The results of this study,
Maltodextrin intake before compet- ition can increase and
maintain blood glucose values, physical performance. And the
intake of Maltodextrin and Nutri-Powder can produce more lactic
acid. So,they are good for the anaenobic power energy supply.
Futher more, they are no obstacle for the water absorption.
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