For workloads beyond 3rd stage, increase intensity 25 watts
(0.5 Kp) until termination heart rate is reached. Cooldown after
last stage has been completed.
Kilopond (kp) are used for Monark cycle ergometers (6 m/rev)
at 50 rpm. Tunturi and BodyGuard cycle ergometers provide 3 m/rev.
1 kilopond (on Monark) at 50 rpm = 50 watts = 300 kgm/min