The present disclosure provides a training method for operating a training system including a pedal-crank input unit drivingly connected in freewheeling relationship to a flywheel machine with inertial load of at least (0.5) kg·m2, an ergometer to determine power, a processor, a profile module, and a session management module, wherein the processor determines a minimum acceptable threshold value of maximum power output for a maximum power period, duration of the maximum power period, and increments the minimum acceptable threshold value of maximum power output for a next maximum power period where the minimum acceptable threshold value of maximum power output for a maximum power period is met.