The Edge

Performance desk

Written for athletes who already do the work — speed, vertical, mechanics and the ground beneath all of it.

Football · Speed

The .15 Nobody Talks About

NFL combine scouts deduct fifteen hundredths of a second for turf. Here is what that number really tells you about your playing surface.

5 min read

Basketball · Vertical

Your Vertical Is a Ground Problem

You cannot jump higher than the ground lets you push. A field guide to force, contact time, and the inches hiding in your takeoff.

6 min read

All Sports · Mechanics

Fourth-Quarter Mechanics

Form does not fail all at once. It erodes. Here is how fatigue rewrites your movement — and how to keep your last rep looking like your first.

5 min read

Soccer · Speed

The First Three Steps

Nobody in your sport runs 40 yards in a straight line. The acceleration that decides games happens in about a yard and a half.

4 min read

All Sports · Mechanics

What the Patents Actually Cover

Four U.S. patents, six years of development, and one material claim worth understanding before you buy anything for your feet.

6 min read

Strength · Strength

In-Season Strength Without Losing Your Legs

The season is not the time to chase PRs. It is the time to keep the ones you already earned.

5 min read

Baseball · Recovery

Feet Are Equipment

You replace your bat, restring your racket, and re-grip your clubs. Your shoes are two seasons old and your insoles are original.

4 min read

Track & Field · Mindset

Take the Springbak® Challenge

Two weeks, one variable, real numbers. How to test a performance claim on yourself instead of taking anyone's word for it.

4 min read

Volleyball · Vertical

The Block Starts on the Floor

Volleyball is decided in the tenth of a second between approach and takeoff. Most of that tenth is spent negotiating with hardwood.

5 min read

Golf · Mechanics

The Swing Is a Ground Sequence

Clubhead speed is generated in the feet and spent in the hands. If the ground under you is unstable, the sequence never fires in order.

5 min read

Track & Field · Recovery

Recovery Is a Training Variable

You do not adapt to training. You adapt to training you recovered from. A practical framework for sprinters and multi-event athletes.

6 min read

Basketball · Mindset

The Shot You Take When Tired

Confidence is not a mood. It is a rehearsed decision you can still make with a fourth-quarter heart rate.

4 min read

Football · Strength

Linemen Are Sprinters at Short Distances

Nobody wins a snap with a max squat. They win it with force delivered in under half a second, from a stance, into the ground.

5 min read

Soccer · Recovery

Ninety Minutes of Ground Contacts

A midfielder covers seven miles in changes of direction. The cost is paid in the feet long before it shows up in the legs.

5 min read

All Sports · Speed

The Thirty-Yard Repeat

One fast sprint is a talent. Twelve fast sprints in a row is a trained quality — and it is the one that shows up on Friday.

4 min read

Baseball · Mechanics

The Back Foot Tells the Truth

Pitchers and hitters both live on the trail leg. When it slips, sinks, or fatigues, velocity and contact go with it.

5 min read

Strength · Mindset

The Off-Season You Will Actually Finish

Ambitious plans fail in week three. Build one you can execute tired, bored, and short on time.

4 min read