Target Heart Rate

Since the fancy new treadmills in my gym measure your heart rate pretty easily, I thought it would be good to look up some info on target heart rate so I have an idea what I'm looking at. Here's a chart and some info from the American Heart Association about target heart rate ranges for different ages. My target range is 95 - 162 beats per minute, so it seems like I was doing a pretty good job today with an average rate of 142 and a max of 148. Good to know!