The Lifestyle Intermediate 12-Week Sprint Triathlon Training Plan is designed for athletes like you—ready to handle a heavier training load and race at your best. This structured, heart rate-based training plan helps you build endurance, power, and speed with a progressive, science-backed approach that syncs directly to your device for effortless tracking. What You’ll Get in 12 Weeks: ✅ Early Focus on Strength & Technique – Build a solid foundation with swim drills, endurance work, and VO2 ...