In the Forum - Low Heart Rate

One forum member wonders: "[During a walk] my friend's heartrate never got higher than 90bpm...she has noticed this before in higher intensity workouts at the gym - her heart rate is always 20-30bpm slower than what the instructor says it should be. Should she be working harder? Is this just a factor of her fitness level?" Heart rate isn't always the same for everyone and there are many factors that affect heart rate. So, what do you think? Come join the discussion and tell us!