| 운동 강도의 차이가 고밀도 지단백 콜레스테롤의 구성성분 및 동맥경화지표에 미치는 영향 |
| 성기운, 이용수, 김시영 |
| 세종대학교 |
| Effects of exercise intensity on HDL-C subparticles and atherogenic index. |
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| ABSTRACT |
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The present study examined the effects of exercise intensity and time on high-density lipoprotein (HDL)-C subparticles and atherogenic index. Ten adults over 25 percentage of body fat were submitted to single session of aerobic exercise. The subjects (23.1±3.9 yrs) participated in two random trials: in maximum fat oxidation exercise intensity (MFOEI) (40∼60% VO2max) and high intensity (80% VO2max) exercise tests. For each trial, blood samples were collected at pre-exercise, post-exercise, 30 min, 1 and 2 h after exercise. Samples were analyzed for total cholesterol (TC), triglyceride (TG), HDL-C, HDL2-C, HDL3-C, apolipoprotein (Apo) A-I, Apo B, Apo B/Apo A-I, and paraoxonase (PON1) activity. Data were analyzed using 2x5 two-way repeated ANOVA. Transient increase in TC, HDL-C, LDL-C, Apo A-I, and Apo B concentrations were significant at post-exercise with 80% VO2max. With MFOEI, no differences in TC, DHL-C, Apo A-I, and Apo B were found. LDL-C was significantly increased after 1 and 2 h post-exercise at MFOEI. TG significantly reduced with MFOEI and 80% VO2max trials. HDL3-C measurement after MFOEI trial was higher compared with it measured after high intensity exercise with 80% VO2max trial. However, there was no difference in HDL2-C between MFOEI and 80% VO2max trials. PON1 activity was significantly increased after 1 and 2 h post-exercise at MFOEI. On the other hand, in 80% VO2max trial, the activity was significantly decreased 1 h after exercise. Apo B/Apo A-I ratio was not different between or within trials. These results indicate that MFOEI appear to be promoting more benefits on HDL-C subparticles and atherogenic index than high inensity. |
| Key words:
HDL-C, Apolipoprotein, Paraoxonase, Exercise intensity, Blood lipid |
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