The Lifestyle Intermediate 44-Week Full IRON Triathlon Training Plan is designed for athletes who have progressed from Sprint to Olympic triathlons and are ready for the next challenge—without needing prior endurance training in the last 90 days! A Progressive Plan for Serious Athletes This structured and heart rate-based training program is compatible with Garmin-type devices, allowing you to auto-sync workouts for seamless execution. The plan is divided into two key phases to optimize your ...