10 min · a taste of VO2max

Three one-minute blocks at 100%, 110% and 120% of FTP with a minute of recovery between each, opened by a two-minute ramp and closed with a minute at 85% and a cool-down. Nine segments in ten minutes — short enough that you see a segment change, a full-screen countdown and the target move, several times over. Set your own FTP and the whole profile moves with it: a session is stored in % of FTP, never in watts.

Below is the Kadenz session player itself — setup, execution and summary, not a picture of them. A simulated rider pedals for you, so the screen comes alive without any hardware at all. Nothing is stored, nothing is sent anywhere.