비타민 B₁의 구강 투요량의 차이가 최대운동시 혈중젖산 및 운동수행력에 미치는 영향

The purpose of this study was to examine the efficacy of vitamin B₁ as an athletic supplement by analyzing the changes in exercise performance and lactic acid concentration in the blood according to the amount of vitamin B1 intake. For a period of one week, 20 college students in groups of five took daily doses of 100㎎, 50㎎ and 10㎎ of vitamin B1 each while the last group was given placebos. Before and after taking the pills, an exercise stress test was administered to examine the changes in their lactic acid concentration, VO₂max (maximal oxygen consumption), HRmax (Heart Rate Maximum) and total exercise time. The data was analyzed by performing repeated ANOVA on lactic acid concentration in the blood, while the VO₂max, HRmax and total exercise time were analyzed by using at-test.<BR> The results showed that there were no significant changes in the lactic acid concentration in groups between before and after vitamin B1 intake(p＞.05).<BR> VO₂max was significantly decreased in group of taken 100㎎ of vitamin B₁(p＜.05), and other groups were not significantly changed(p>.05) between before and after vitamin B1 intake.<BR> HRmax was significantly increased in group of taken 50㎎ of vitamin B₁(p＜.05), and other groups were not significantly changed(p＞.05) between before and after vitamin B1 intake.<BR> There were no significant difference in total exercise time in groups between before and after vitamin In intake(p＞.05).<BR> In this study, large daily doses of vitamin B₁ didn`t have any positive effects without HRmax in group of 50㎎ intake on exercising.<BR> As a conclusion, large doses of vitamin B1 alone do not qualify as an exercise supplement, and I concluded that it is recommended to add the vitamin B complex to other types of vitamin supplement to prevent negative symptoms of vitamin deficiency.