Science-proven Breakthrough Metabolic Workout!
WHY 17-MINUTES? And Why :30 second & :20 Second Intervals? Scientific research has shown that HIIT improves both aerobic and anaerobic fitness, impacts muscle tissue at a cellular level, and produces the same anaerobic and aerobic improvement as cardio in less than half the time. Standard, traditional HIIT has been proven to be able to improve aerobic fitness …