The Ruffier-Dickson is a test to measure aerobic fitness level. To calculate it, the following measurements are made:
P0: Heart rate right before the exercise begins. It should be near to the resting heart rate.
P1: Heart rate just after 30 squats made in 45 seconds
P2: Heart rate after one minute recovery
Two indexes can then be calculated:
Note: for a correct computing a HRM band is necessary. The integrated optical HR is too imprecise due to its latency.