A normal and typical heart rate after walking for 15 minutes is between 110 to 120 beats per minute.
A persons heart beat normally beats between 60 to 70 beats per minute but is normally elevated to 110 to 120 beats per minute and when you go faster it could go a little higher and then slow back down to normal once you stop walking
Walking is a great way of getting your heart beating faster and pumping more blood through your body and helps to keep you healthy and prevent heart disease and diabetes.