This formula is one of the most effective methods used to calculate your target heart rate for aerobic (cardio) exercise. It factors in your resting heart rate (RHR), which is a good indicator of your state of fitness.
Walk a mile and cinch in your core with this double-duty cardio workout. AND get it all done in just 10 minutes! Check out this Jessica Smith exercise routine today--it's a short challenge, but so worth it!