Plus the science behind running plans: why training schedules differ
On May 11, I’ll be running the Leiden Half Marathon. As part of my preparation—and as a personal experiment—I’ve created my own running plan. In the past, I followed training plans from Polar Flow, but I found them somewhat limiting. They emphasize heart rate zone 2 training, which for me means keeping my heart rate between 114 and 134 bpm. While this is great for endurance, there’s little focus on speed work, which I consider essential for effective race preparation. That’s why I decided to design my own plan, blending different training methodologies to see what works best for me.
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