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Heart rate 

Heart rate
Chapter:
Heart rate
Author(s):

William Kinnear

and John Blakey

DOI:
10.1093/med/9780198702467.003.0004
Page of

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date: 07 May 2021

Normal subjects will reach 80% or more of their predicted maximum heart rate (HR): cardiac output is what determines their exercise capacity Unfit subjects and patients with heart disease will also reach 80% of predicted maximum HR, but their VO2max will be low If the maximum HR is low, either the subject didn’t try very hard, or something other than the heart is limiting exercise capacity.

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