Physical fitness?: Well conditioned athletes often have low heart rates at rest (sometimes 40 - 50 bpm). Your maximum heart rate should be 220 - age (i.e. ~171 BPM for a 49 y/o). If your heart rate rises above this, abruptly rises to this rate, or you have dizziness, short breath, or chest pain, see a cardiologist to make sure you're not experiencing an arrhythmia. Otherwise, this range is normal for athletes
Answered 2/13/2015
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