Following a workout designed to verify your power and heart rate training ranges, cadence and pedaling power are the main focus of the workouts on Disc One. Nothing makes you faster on a bike then increasing your overall power. Carmichael Training Systems Progressive Power DVD’s are designed to do just that – use them independently, or combine all 5 DVD’s, to get 16 power workouts that studies show can increase your overall sustainable power by 12% (Klika, et al., 2007). Each DVD contains three 1-hr workouts. CTS Field Test disc is included with each order