The Most Underrated Training Method | Combo Workouts Masterclass

Combo Workouts Explained: How to Mix Threshold, Hills & Speed Without “Interference” This episode breaks down “combo workouts,” which combine two different running intensities (e.g., threshold plus hill sprints, or aerobic repeats plus fast 200s) instead of traditional straight-repeat sessions done in a single zone. It explains how the old fear of an “interference effect” from mixing intensities was likely overblown, with modern research suggesting complex overlap in signaling and real-world coaching showing benefits, including using fatigue to amplify later faster work. The script outlines when combo workouts fit best—late base into pre-competition for transitioning and maintaining qualities, and in the final 6–8 weeks as lower-risk “small spices” of race-pace work for amateurs. Practical examples and guidelines are given, including keeping the primary aerobic portion around 75–80% of normal volume and adding a reduced dose of faster, specific work. YOUR FREE GUIDE to Combo Workouts! I put together a companion guide so you can apply these concepts. Get it here: https://thegrowtheq.kit.com/ee48082ff7 00:00 Combo Workouts Explained 01:07 Why We Stopped Mixing 02:10 Interference Effect Myth 03:19 Modern Signaling Reality 04:56 Fatigue Can Amplify 06:11 When To Combine 06:23 Bridge Into Faster Work 07:32 Develop And Maintain Speed 10:34 Small Doses For Amateurs 12:56 Blend Workout Progressions 14:26 Practical Templates 17:11 Wrap Up And Takeaways