Effects of a bout of exercise using multiple intensities on serum lipids and lipoproteins

This study investigated the effects of a 400 kcal continuous exercise session using high then moderate exercise intensities on serum lipids and lipoproteins. The variables TC, TG, HDL-C, and LDL-C concentration were investigated in healthy young adults. Ten participants completed the exercise and control trials. The exercise session consisted of continuous exercise at a high-intensity (70% of VO2max) for 200 kcals followed immediately by moderate-intensity (50% of VO2max) exercise for another 200 kcals. Blood samples were taken immediately before exercise and 24 hr post exercise for biochemical analysis. Two-Way ANOVA revealed no significant effect of exercise and time for TC (p = .762), TG (p = .686), HDL-C (p = .403), and LDL-C (p = .863). It was concluded that a bout of exercise using high and moderate intensities has the same effect of exercise done at either intensity alone and provided no additional benefits on serum lipids and lipoproteins.