9 Reasons Why Your Heart Rate is High on Easy Runs
You’re on a long run day in your training plan, so you’re taking it easy and trying to maintain your desired pace. You look down at your heart rate monitor and discover your heart rate is way above your target heart rate.
There are many reasons your heart rate might be high during your easy runs but before we get into the potential causes, it’s important to know your resting and maximum heart rates, and your heart rate training zones, so that you can understand your personal baseline.
Your normal resting heart rate (RHR) is unique and changes as you age. Factors that can affect your RHR include your weight and health, stress, amount of sleep you get, certain medications, alcohol and tobacco use, and the weather. The best time to measure your resting heart rate is first thing in the morning, or by using a heart rate monitor like WHOOP. WHOOP calculates your RHR each night using a dynamic average weighted towards your deepest periods of sleep, allowing for consistent readings.