Notes
Assumptions: Max HR 185, Resting HR 45
Pfitzinger Guidance:
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< 70% HRR --> < 143 bpm ( Recovery)
62-75% HRR --> 132-150bpm (General aerobic)
65-78% HRR --> 136-154 bpm (LR)
73-84% HRR --> 147-163 bpm (MP)
77-88% HRR --> 153-168 bpm (LT)
91-94% HRR --> 172-177 bpm (VO2)