: Includes structured 8- to 12-week programs for various race distances, from 5Ks to ultramarathons, suitable for different skill levels. Purchasing Options The book is available from several major retailers:
: MacKenzie emphasizes high-intensity interval training (HIIT) and strength work over long, slow distance (LSD) training to improve both speed and aerobic base. Power Speed ENDURANCE: A Skill-Based Approach t...
: Features thousands of photographs detailing proper mechanics and drills for running, cycling (road, mountain, and time-trial), and swimming. : Includes structured 8- to 12-week programs for
: Outlines specific approaches to nutrition, hydration, and electrolyte balance tailored to high-intensity training. from 5Ks to ultramarathons