XC Training System
Post-Run Strength Work for High School Runners

Last updated: July 4, 2026. Coach Jay Johnson.

📌 Key Takeaways

  • Open the free Post Run App on your phone: coachjayjohnson.com/post-run. This is the Red/Orange post-run resource to share with athletes; it is a web link, but it opens cleanly on a phone and works like an app.
  • Post-run strength work is the missing piece for many high school runners because the aerobic engine improves faster than the structural chassis.
  • The work should happen imm
  • ...
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Core X: Core Routine for Runners

📌 KEY TAKEAWAYS

  • Core X is a 5-minute core routine — 10 exercises at 30 seconds each — designed specifically for runners and easy to add after any run.
  • The routine targets both the anterior chain (front of the body) and the posterior chain (back of the body) for balanced core development.
  • A strong core helps maintain proper running form, reduces fatigue, and improves the transfer of power from your legs through your torso.
  • Exercises include ...
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