AT SOUTH MIAMI HOSPITAL: Dr. Theodore Feldman  and cardio tech Josie Mujica demonstrate a stress test.
AT SOUTH MIAMI HOSPITAL: Dr. Theodore Feldman and cardio tech Josie Mujica demonstrate a stress test. DANIEL BOCK FOR THE MIAMI HERALD
AT SOUTH MIAMI HOSPITAL: Dr. Theodore Feldman and cardio tech Josie Mujica demonstrate a stress test. DANIEL BOCK FOR THE MIAMI HERALD

Determining your optimal heart rate can improve your fitness performance

February 16, 2015 02:04 PM