So, this is the first #running thread I need to dump out of my head.
About a year or so ago, I started qualifying what effort meant while in the run. There are essentially four basic models:
RPE
Heart rate
Pace
Power
So I put this infographic together as a simple way to qualify effort.
It uses the popular 5-zone paradigm and standardizes on a field test based on what's referred to as "crest load"—the race pace you can sustain for 40 minutes.
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