Kris Stallenberg 45-min Z2 (Endurance) Easy #04 This workout combines a steady Z2 endurance block with optional cadence drills to improve pedaling efficiency. While the power remains constant within the aerobic zone defined by Coggan Power Zones, periodic changes in cadence will enhance neuromuscular coordination. Listen for the prompts to guide you through different cadences, which will help you develop a smoother, more effective pedal stroke. bike