Low intensity heart exercising can help improve your endurance, though it may take longer to achieve your fitness goals than traditional high heart rate training. You may have read or heard that to ... Health.com: Strength Training vs.

Understanding the Context

Cardio: Which Is More Effective for Your Heart, Muscles, and Longevity? Strength Training vs. Cardio: Which Is More Effective for Your Heart, Muscles, and Longevity? Yahoo: Heart rate zones aren’t a perfect measure of exercise intensity, but regularly getting your heart pumping is still important for fitness Heart rate zones aren’t a perfect measure of exercise intensity, but regularly getting your heart pumping is still important for fitness MSN: What Happens if Your Heart Rate Is Too High During Exercise?

Key Insights

Lack of regular physical exercise is recognized by the American Heart Association as one of the key heart disease risk factors, and it is assumed that cardio exercise (walking, jogging, swimming, etc. Many data-driven runners have a grasp on common heart rate metrics, like resting heart rate, maximum heart rate and heart rate zones. But there’s another, often undervalued data point worth keeping ...