The document introduces the Spinpower program, which provides Spinning instructors with advanced certification to teach indoor cycling classes focused on power metrics. The program utilizes the Spinner Blade ION bike with a power meter to give riders real-time power output data and help them track fitness gains. Instructors are trained on power-based principles and how to administer a personal power threshold test to create customized training zones for riders. The goal is to help riders of all levels maximize training and achieve results through using an objective power measurement.