The effect of maximum heart rate on oxygen kinetics and exercise performance at low and high workloads.


The normal heart rate is linearly related to oxygen consumption during exercise. The maximum heart rate of the normal sinus node is approximated by the formula: HRmax = (220-age) with a variance of approximately 15%. However, the nominal upper rate of most permanent pacemakers is 120 beats/min, a value that remains unchanged for many patients. As this… (More)


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