Traditional workout routines focus on individual muscles, meaning you need to spend hours working out. (adjustablekettlebellreviews.com)
When you do this... ALL of the fibers end up getting stronger... instead of just a certain number like with many traditional workout programs. (isometricsstrength.com)
Due to the high intensity advocated, HIT enthusiasts say that fewer sets are needed and thus less time is required in the gym to do full - body workouts and to achieve results superior to more traditional workouts involving less intensity and more sets. (verywellfit.com)