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Enter Lactate Threshold Heart Rate (LTHR) :
Zone
Heart Rate
RPE
Description
1
1-2
Recovery
2
3-4
Endurance
3
5-6
Tempo
4
7
Lactate Threshold
5a
8
Above Threshold
5b
9
Aerobic Capacity
5c
10
Anaerobic Capacity
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Used with permission by Joe Friel, author
Mountain Bike Training Bible
.
Zone Calculator by Curt Wilhelm,
mtbcoach.com
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