Physiology

Coaches Trevor Connor and Ryan Kohler analyze data from 20-minute power tests, offering important lessons on the proper execution of these intervals.

Breathing cold, dry air while training outdoors can feel painful, but does it hamper your performance? Dr. Stephen Cheung explores.

Cold temperatures can have a big impact on our physiology. We detail the performance effects of cold temps, and learn how to combat them.

Coaches Trevor Connor and Ryan Kohler analyze ride data from one of Trevor’s LSD (long, slow distance) rides in order to explain the correct execution of one of these fundamental rides.

Coach Grant Holicky and head coach Ryan Kohler teach you how to analyze cyclocross power files in TrainingPeaks.

To avoid the high-intensity effort required to directly measure max heart rate, athletes use prediction equations. Clint Eastwood may or may not approve.

Like it or not, we slow down as we age. Do some parts of our physiological machinery slow down faster than others? If so, what does that mean for training and endurance performance?

Dr. Stephen Seiler presents the case for why properly measured heart rate data is important to track and about some dos and don’ts to follow when attempting to determine your own HRmax.