Dear trainerroad forum,
I am following the century training plan. However, I believe in the value of long endurance rides and having a strong aerobic base. In order to test my base fitness I want to perform a cardiacic drift test / test how much my heart rate drifts over the course of a 4 hour zone two ride. Usually, I would be doing this outside. Due to bad weather I plan on moving the test inside. Has anyone ever done such a test on the trainer, what did you place importance on and did you make any changes to the regular testing protocol? Also, are the results comparable? I plan on cooling with a fan and open windows. Furthermore, I am considering reducing the ride time to 3.30h due to the increased strain /constant intensity when riding the trainer.
I look forward to your responses!