| Keywords |
Concentrated liquid oxygen ; MDA ; SOD ; Blood lactic acid ; Cardiovascular factors |
| Abstract |
This study was to analysis how concentrated liquid oxygen intake after high-intensity exercise effect of elite athletes' oxidative stress and antioxidation, blood fatigue substances, cardiovascular factors, and to define the usability of the intake. The study subjects were total 9 male elite athletes. With the exercise intensity equal to VO2max80% which was calculated on Bruce protocol based maximum exercise stress test, the study subjects had done high-intensity exercise for 40 minutes on treadmill. To minimize the previous learning effect of exercise stress test, they had oneweek wash-out period, and the three groups of control, placebo, and GO2 had cross-over design three times for three weeks. To compare interaction effects, two-way ANOVA (3RG×4RM) was conducted. In order to the significant difference in a repeated period, LSD post-hoc test was conducted for examining significance. The change in timebased SOD (p=.002), lactic acid (p<.001), blood pressure (systolic: p<.001, diastolic: p=.004), and heart rate (p<.001) depending on concentrated liquid oxygen intake was significantly different in each measurement time. Findings of this study suggest that intake of concentrated liquid oxygen as one-time single substance after high-intensity exercise was limited positive effect on SOD, lactic acid, and cardiovascular factors. |