nancy324
Cathlete
My DH is an avid bike rider, and, despite being overweight, usually has a resting heart rate of about 60-65. By "resting" he just means sitting at his desk. Suddenly, now his sitting heart rate is between 99-105! He feels fine, has no shortness of breath, and can still go long distances on his bike. We're calling the doctor today, but has anyone else heard about this happening? We tried 2 different heart rate monitors to make sure it wasn't something wrong with the HRM. I'm a little nervous.