Lung-buster time. The Aerobic and 5K Efforts Workout brings together hill intervals and speed work to build both your lungs and your legs. Zwift Academy Run is a world-class training program featuring top-tier coaching for runners of all levels. Complete your journey of structured workouts and group events to unlock your speed, strength, and personal best. Get a closer look at this Zwift Academy Run workout with guidance from coaches Terrence Mahon and Jen Rhines.