The Cycling-Inform Store

50 Minute Sprinting Power Workout. Get ready to sharpen your leg speed and improve your maximum power output by doing this high intensity workout with Coach Troy. Spinervals 20.0 - The Sprinting Machine, will enhance your short burst sprinting abilities by developing those hard-to-reach fast twitch muscle fibers and improving your nervous system response. Quicktime Video Preview. In this incredibly challenging and effective workout, you'll do a series of short, high intensity sprinting efforts followed by longer rest intervals on a 1:5 work-to-rest ratio designed to optimize your ATP-CP energy system. Towards the end of the workout, get ready for a set of power producing plyometric jumps that will give you the edge in any group sprint. This workout is for experienced competitive cyclists who have a high level of aerobic base fitness and are ready to take it to the next level of performance!