How to figure your heart-rate range.(Health & Fitness)(Fitness focus) From: Daily Herald (Arlington Heights, IL) | Date: March 15, 2004 | COPYRIGHT 2004 Paddock Publications. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

Byline: Nicki Anderson

Q. I have been exercising for more than 20 years. Recently when I was at the health club, I was running on a treadmill next to someone who was also running. I noticed that this woman's heart rate was significantly lower then mine. Her HR never went above 150 while mine soared to 174 while running at 6 mph.

What is the physiological reason for this? Is there an exercise I should keep away from? Could this lead to health problems?