 [ Symptoms ] when will my heart rate go back to normal after exercise im 40 and havent exercised in a while my weight is 210 and i am 510 when i run my heart rate go up to 176 is this normal and it takes several hours to go back to normal are all these stats normal [ Disease ] it takes whatever time it takes the fitter you are the faster it will drop though it will always take a while to return fully to the resting rate your resting heart rate should be somewhere in the 60s or 70s that is the rate when you have been sitting or lying for a while as you get fitter it could drop even lower some athletes have resting heart rates in the 40s mine is currently in the high 50 is because i lift weights and exercise 6 days a week hope this helps