Effect of acute moderate exercise on low density lipoprotein diene conjugation in sedentary Thais

Abstract

The effect of acute moderate exercise on low density lipoprotein diene conjugation (LDL-DC) was studied in sedentary Thais. LDL-DC in 62 sedentary subjects (male, n=26, mean of age 35.96+/-7.25yr. ; female, n = 36, mean of age 30.72+/-7.34 yr.) was investigated immediately pre and post exercise and 2 hours post exercise following 30 mins of exercise program by bicycle ergometer at 50% peak oxygen consumption; VO2peak) Although there was the increase of low density lipoprotein diene conjugation level after test. There was no statistically significant increase in low density lipoprotein diene conjugation level following post exercise compared to baseline value (6.93+/-2.43 umol/L versus 8.42+/-4.27 umol/L; n=62) In addition, comparing 2 hours post exercise and baseline data, there was no different either, (6.93+/-2.43umol/L versus 8.08+/-33.03umol/L, respectively). Furthermore there was no significant of the value of low density lipoprotein diene conjugation between immediately post exercise and 2 hours post exercise. (8.42+/-4.27 umol/L versus 8.08+/-3.03 umol/L, respectively). These results suggested that the 30 min exercise bout at a moderate intensity was insufficiently to induce oxidative stress to increase the susceptibility of low density lipoprotein diene conjugation. Therefore, this exercise program should be beneficial for reducing the risk of atherosclerosis within the sedentary life style groups who have been unregularly performing exercise.