This session is broken up into two sections. After the warm-up, we complete 4x 30sec high powered maximal anaerobic efforts aiming for 170% of your FTP. To allow you to hit each effort with optimal anaerobic power, we have 5min full recovery between each. At the end of the workout, we move into 1min build efforts. These are high power and high force efforts that will also be heart pumping. The recovery time gradually shortens– by the end, we'll have maxed out all energy pathways, forcing us to rely on our aerobic system.