THE FOUR CAPACITIES · EXPRESS

Can you produce force — still, in motion, redirected?

Express is the visible layer of athleticism — sprint speed, jump height, quickness, strength. When people call an athlete “athletic,” these are usually the qualities they mean.

What Express is

Express covers the qualities sport rewards most visibly: acceleration, top speed, jumping, throwing, change of direction, power, and strength. It's the athlete's ability to put force into the ground — and turn it into movement that matters in a game. We test it in four groups:

  • Speed — acceleration and max velocity, timed in segments so we know which one you have and which one you're missing.
  • Power — vertical and broad jump: how much force you produce, and how fast.
  • Agility & Quickness — change of direction. Stopping, redirecting, and re-accelerating is its own quality, and plenty of fast athletes don't have it.
  • Max Strength — the force foundation underneath the other three, tested with technique-gated estimates, never risky maxes.

The part most training skips

A low Express number doesn't automatically mean the athlete needs more speed work. A slow 40 can come from ankles that can't reach the right positions (an Access limit). From force leaking through a trunk or hip that can't stabilize (a Control limit). From testing on tired legs (a Sustain limit). Or from a true speed limitation.

Those are four different athletes with four different training plans — and the same stopwatch reading. That's why we never read one number in isolation. The Index measures all four capacities so the number tells us something specific.

How we measure express

What develops it

Sprint mechanics, jump and plyometric progressions, medicine ball work, strength training with intent, and max-velocity exposure — sequenced by what your map says is actually in the way. Sometimes the fastest route to a better 40 never touches a sprint drill.

Every program starts with the Athletic Index

Get your numbers