Depends on how much lifting you are doing and how you organize your training. Interval training is useful, but keep in mind it is more stressful on the nervous system than traditional steady state cardio, so you have to consider that when desigining a program that involves HIIT cardio. I usually only include 1-2 sessions of that per week depending on what my resistance training looks like at the time.
Also, what's more important is an appopriately designed diet, and continuing to lift heavy while on a cut. I think that doing cardio at the level most people do it is going to have a pretty insignificant impact on muscle mass for most, though I have heard otherwise from some.




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) due to its high intensity and highly motivating training style. DC and HIIT are close to the same thing. Find a program that you enjoy...that works for you..and stick with it.

