Conclusion Neither HIIT nor MICT is superior for altering TC , TRG , or LDL-C , or TC-HDL-C ratio .
To raise HDL-C , HIIT may result in a larger effect size compared with MICT .
Objective To compare the effects of moderate intensity continuous training ( MICT ) and high intensity interval training ( HIIT ) on  adult lipid profiles ;  to identify training or participant characteristics that may determine exercise-induced change in total cholesterol ( TC ) , triglycerides ( TRG ) , high-density lipoprotein cholesterol ( HDL-C ) and low-density lipoprotein cholesterol ( LDL-C ) .
Effects of the amount and intensity of exercise on plasma lipoproteins.
BACKGROUND Increased physical activity is related to reduced risk of cardiovascular disease , possibly because it leads to improvement in the lipoprotein profile . However , the amount of exercise training required for optimal benefit is unknown . In a prospect i ve , r and omized study , we investigated the effects of the amount and intensity of exercise on lipoproteins . METHODS A total of 111 sedentary , overweight men and women with mild-to-moderate dyslipidemia were r and omly assigned to participate for six months in a control group or for approximately eight months in one of three exercise groups : high-amount-high-intensity exercise , the caloric equivalent of jogging 20 mi ( 32.0 km ) per week at 65 to 80 percent of peak oxygen consumption ; low-amount-high-intensity exercise , the equivalent of jogging 12 mi ( 19.2 km ) per week at 65 to 80 percent of peak oxygen consumption ; or low-amount-moderate-intensity exercise , the equivalent of walking 12 mi per week at 40 to 55 percent of peak oxygen consumption . Subjects were encouraged to maintain their base-line body weight . The 84 subjects who complied with these guidelines served as the basis for the main analysis . Detailed lipoprotein profiling was performed by nuclear magnetic resonance spectroscopy with verification by measurement of cholesterol in lipoprotein subfractions . RESULTS There was a beneficial effect of exercise on a variety of lipid and lipoprotein variables , seen most clearly with the high amount of  high-intensity exercise .  The high amount of exercise result ed in greater improvements than did the lower amounts of exercise ( in 10 of 11 lipoprotein variables ) and was always superior to the control condition ( 11 of 11 variables ) . Both lower-amount exercise groups always had better responses than the control group ( 22 of 22 comparisons ) . CONCLUSIONS The highest amount of weekly exercise , with minimal weight change , had widespread beneficial effects on the lipoprotein profile . The improvements were related to the amount of activity and not to the intensity of exercise or improvement in fitness
Conclusion Neither HIIT nor MICT is superior for altering TC , TRG , or LDL-C , or TC-HDL-C ratio .
To raise HDL-C , HIIT may result in a larger effect size compared with MICT .
Objective To compare the effects of moderate intensity continuous training ( MICT ) and high intensity interval training ( HIIT ) on  adult lipid profiles ;  to identify training or participant characteristics that may determine exercise-induced change in total cholesterol ( TC ) , triglycerides ( TRG ) , high-density lipoprotein cholesterol ( HDL-C ) and low-density lipoprotein cholesterol ( LDL-C ) .