Sports Science
From Data to Decision: Turning Sprint and Jump Numbers Into Training Prescriptions
Collecting testing data is the easy part. Knowing what to do with it is harder. Here's a practical framework for moving from force…
Sports Science
Force Plates Are Not Just for Labs: A Practical Guide for Coaches
Force plates have moved from laboratory exclusivity to field accessibility. Here's how to use them practically—what to measure, wh…
Sports Science
The Morin-Samozino Sprint Method: A Practical Field Guide
The Morin-Samozino method turned sprint force-velocity profiling into a field test. Here's a step-by-step practical guide to apply…
Sports Science
RSI: The Most Underused Jump Test in Sport Science
Reactive Strength Index combines jump height and ground contact time into a single number that tells you more about athletic readi…
Sports Science
Leg Stiffness in Sprinting: The Goldilocks Metric
Leg stiffness is one of the most important and least discussed variables in sprint performance. Too little and energy is wasted; t…
Sports Science
Fatigue and the Force-Velocity Profile: How Tiredness Changes Your Athletes
Fatigue doesn't uniformly reduce performance. It shifts the force-velocity curve in specific, predictable ways—and understanding h…
Sports Science
What Is Reactive Strength and Why Does Every Coach Need to Measure It?
Reactive strength is the ability to rapidly switch from absorbing force to producing it. It underpins sprinting, jumping, and chan…
Sports Science
Periodising Power: How to Peak Explosive Capacity for Competition
Power is the most competition-critical quality for most athletes—and the most difficult to maintain year-round. Here's how to stru…
Sports Science
Return to Sprint After ACL Reconstruction: What the Research Actually Says
Returning athletes to full sprinting after ACL reconstruction is one of the highest-stakes decisions in sports medicine. The resea…
Sports Science
Jump Height Is Not Enough: Moving Beyond Peak Height in Jump Testing
Jump height is the most widely used output from jump testing—but relying on it alone misses most of what a force plate or contact …
Sports Science
Horizontal vs Vertical Force: Why the Direction of Force Production Changes Everything
Sprinting is won and lost in the horizontal plane, but most strength testing measures vertical force. Understanding the difference…
Sports Science
How to Use a Friction-Resistance Sled for Force-Velocity Profiling
A friction-resistance sled removes the guesswork from sprint loading. Here's exactly how to use one to generate valid force-veloci…
Sports Science
Steady Start vs Two-Stage Start: Which One Should You Be Using?
After 30 years building timing equipment, I've watched coaches argue over split times that were never comparable to begin with. Th…
Sports Science
The Science of Sled Training: What Load Actually Does to Sprint Mechanics
Heavy sled work and light sled work are not the same training stimulus. The load you choose determines what adapts—and choosing wr…
Sports Science
CMJ vs Squat Jump: When to Use Which Test and What Each Tells You
The countermovement jump and squat jump measure related but distinct qualities. Choosing the right test—and comparing the two—give…
Sports Science
Force-Velocity Profiling: What It Is, Why It Matters, and How to Do It Right
Force-velocity profiling tells you exactly where an athlete's power production breaks down — and therefore exactly where to direct…
Sports Science
Why Most Sprint Testing Is Producing Garbage Data (And What to Do About It)
Timing gates, radar guns, and timing systems are more common than ever. The protocols for using them correctly are not. Here's why…
Sports Science
Ground Contact Time vs Flight Time: What Do They Actually Tell Us?
Ground contact time and flight time are among the most commonly measured sprint variables—and the most commonly misinterpreted. He…
Sports Science
The Stretch-Shortening Cycle Explained: Why Some Athletes Are Just Built Differently
The stretch-shortening cycle is the mechanism that makes elite jumpers and sprinters seem almost effortless. Understanding how it …
Sports Science
Why Your Athletes' Force-Velocity Profiles Are Probably Wrong
Force-velocity profiling is a powerful tool—but it's also easy to get wrong. Here are the most common errors that corrupt the data…
Sports Science
Eccentric Strength and Injury Risk: What the Data Actually Shows
Eccentric strength deficits are consistently linked to hamstring and other soft tissue injuries in sport. Here's what the evidence…