Table 1. Intensity zones for the traditional, metabolic power approaches and HR-based method.
Zones Traditional approach(km·h-1) Metabolic power approach(W·Kg-1) HR based method(%HRmax)
1 0-6 0-10 < 71
2 6-10.2 10-20 71-78
3 10.2-14.4 20-35.5 78-85
4 HSRZone 14.4-19.8 HMPZone 35.5-55 HHREZone 85-92
5 19.8-24.9 > 55 > 92
6 > 24.9
MP: metabolic power; %HRmax: percentage of maximal heart rate; HSR: high speed running; HMP: high metabolic power; HHRE: high heart rate exertion.