The Science of Periodization: Building the Perfect High School XC Macrocycle The season had fallen apart by mid-October. A talented squad that had looked promising in August was now scattered across the training spectrum—two kids injured, three overtrained and flat, four undertrained and fitness-lagging. The coach, well-intentioned but flying by instinct, had programmed workouts week-to-week…

It’s the Fourth of July. The local 5K just finished. I see my breakout sophomore limping. Don’t be a casualty of the ‘June Jump.’ Here is the veteran coach’s guide to navigating summer mileage. Building a massive aerobic engine is crucial for XC success—we all know the science. But if you build the engine faster…

Building the Championship Season: A Case Study A successful running season isn’t random; it’s designed. By utilizing mesocycles—distinct training blocks lasting 3-6 weeks spanning the aerobic base, threshold, and VO2 max phases—coaches can ensure athletes handle progressive overload and peak exactly on race day. Here is a 13-week case study on building that structure. Let…

Mesocycles: The Engine of Adaptation Mesocycles are 3-4 week training blocks within the macrocycle, each with a specific physiological target. This is where the magic happens—where abstract periodization theory becomes concrete workouts that create measurable adaptation. This is what you came for, right? This article is part of our Complete Guide to High School Cross…