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Old 09-16-2013
CoachDavidShen CoachDavidShen is offline
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Join Date: Jan 2012
Posts: 604
CoachDavidShen
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here's more:

LTHR - Lactate Threshold Heart Rate
CNS - central nervous system
4BK - 4 Beat Kick
PE - Perceived Effort
RPE - Rating of Perceived Effort (usually scales of numbers like 1 thru 10, but depends on the system)
PR - Personal Record (same as PB=Personal Best)
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