The RANGE listed in the app is NOT the actual heart rate being recorded. At your own pace, adding a few minutes per week, try to work your way up to 45 minutes per day, 5 days a week, with 30 minutes of your routine done in your target heart rate zone. While this has historically been one of the most widely adopted methods, we at Heart Zones, Inc prefer to endorse using ZONING or Threshold Training for your workouts. To find out your maximum heart rate, you can have it calculated for you in a lab-type setting during a VO2 max test where you get on a treadmill and work as hard as you can, however most people get a rough estimate with the following formula: 220 minus your age. . Moderate intensity – Between 95-102% of your. . Web. .