Heart

Patient: Hi, i have just started jogging with my friend who is 37 years old and a boxer for many years. I got my friend to wear some heart moniter kit that i bought and we found that his resting heart rate is about 100 bpm and when we are runing not at full pace for about 5 miles his heart rate is about 202 beats per minute even downhill and 3 minutes after we start to run he gets to this level.Should he be concerned about this level.I am 52 and my heart rate on the runs are about 140 to 160 and i have a resting heart rate of 53.

Doctor: