“…Combining anaerobic and aerobic conditioning may have numerous cardiovascular benefits, such as decreasing resting heart rate and blood pressure, (30,31,38,40). The use of 5-10 minute training intervals at an intensity of approximately 75-85% of an officer's heart rate reserve (HRR), combined with small 5-10-minute bouts of aerobic recovery (i.e., 50-70% HRR) for a total of approximately 20-30 minutes is one way to combine aerobic and anaerobic training into a single training session (33).…”