Special Needs to Prescribe Exercise Intensity for Scientific Studies
Figure 1
Accuracy of target training heart rate dependent on the time course of the Heart Rate Performance Curve. The same relative intensity of 85% HRmax (usual upper limit) gives different work load related to the anaerobic threshold (LTP2) [18]. Subject (A) 85% HRmax is well below HR LTP2; subject (B) 85% HRmax is already above HR LTP2.