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Heart Rate Zone Calculations
Zone % of
Perceived Exertion
Maximum
Heart Rate
1
50–60%
Relaxed, easy pace,
rhythmic breathing
2
60–70%
Comfortable pace,
slightly deeper
breathing, conversation
possible
3
70–80%
Moderate pace, more
difficult to hold
conversation
4
80–90%
Fast pace and a bit
uncomfortable, breathing
forceful
5
90–100%
Sprinting pace,
unsustainable for long
period of time, labored
breathing
Appendix
Benefits
Beginning-level
aerobic training,
reduces stress
Basic cardiovascular
training, good
recovery pace
Improved aerobic
capacity, optimal
cardiovascular training
Improved anaerobic
capacity and
threshold, improved
speed
Anaerobic and
muscular endurance,
increased power
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