Elevate Human

Performance.

By Gavin Macmillan

World Renowned Performance Coach to 650+ Pros

Welcome

to the World's Most

Pioneering Training Modality.

Our Athletes

Georges St PierreAryna SabalenkaMiguel CottoCoco GauffManny PacquiaoMarcus MariotaSpringboks RugbyDominick CruzMitch TrubiskyLood de JagerSean BuntingCarlin IslesJohn SmitBrandon NakashimaIsaac SeumaloLatavius Murray

Track Record

2UFC Champions

75+NFL Athletes

15+NBA Players

7World Boxing Champions

2Tennis Champions

1World Cup Rugby Team

5+Olympic Medalists

Our Philosophy

Where Biomechanics Meets Elite Training

Our philosophy extends beyond biomechanics coaching and into the very way we train. Those same training systems have built hundreds of elite athletes.

Backed by PhD level physios, our story is not just one of athlete rehabilitation, training and performance coaching. It's a journey to the truth of how the human body works, what defines strength and how that translates to sports performance.

We're the best in the world at it.

Poolside with Georges St-Pierre

Training Principles

What we're built on:Eastern Bloc Training

Eastern Bloc Training

While working together at SSL, Marv Marinovich and Gavin Macmillan both became deeply educated in eastern bloc training principles responsible for creating many top tier athletes.

The Spinal Engine

Russian Engineer and Physicist Serge Gracovetsky proved the spine’s role as the primary driver of movement. This became the foundation of our biomechanics approach.

Verkoshansky’s Vision

Verkoshansky said if an inertia machine existed, together with the right understanding of biomechanics, you could create the perfect athlete. We built that machine.

Verkoshansky said if an inertia machine existed, together with the right understanding of biomechanics; you could create the perfect athlete.
Yuri Verkoshansky

Equipment

Introducing
The ISO

Our pioneering inertia machine delivers the fastest documented strength gains without risking injury.

Discover Innovation

Redefining Strength

Without DOMS. Without injury risk. The inertia-based system that built 650+ elite athletes across 7 major sports.

This is how you elevate human performance.

Watch the ISO in action

In The Lab

Building The Perfect Athlete

Our equipment is used by the elite of the elite, from Francis Ngannou to GSP.

Francis Ngannou training at Sport Science Lab

01Francis Ngannou

Marcus Mariota training at Sport Science Lab

02Marcus Mariota

Georges St-Pierre training at Sport Science Lab

03Georges St-Pierre

Isaac Seumalo training at Sport Science Lab

04Isaac Seumalo

Cody Garbrandt training at Sport Science Lab

05Cody Garbrandt

Our Challenge

The Problem: Conventional Weight Training Does Not Translate to Sports Performance

01The Measure of Strength

Weight lifted is only half the equation

When we think of strength, we picture conventional weight lifted as the unit of measurement. If two people can deadlift 500kg, we say they're equally strong — but these contests allow unlimited time to complete the lift. If one person completes it four times faster than the other, is that not important?

Deadlift · 500 kgLive

Athlete A0.0s

Athlete B0.0s

Same load4× faster

02Functional Strength

Strength is orchestrated by the nervous system

Functional strength is a product of muscle action initiated and orchestrated by the nervous system, under highly specific conditions — not simply the load on the bar.

Neural DriveLive

Motor unit recruitmentorchestrated

03Rate of Force Development

Force and power, in a fraction of a second

In the majority of sports, it's the ability to produce and control force and power in a very small amount of time. Rate of force development contributes far more to athletic ability than so-called maximal strength. We built the system to measure exactly that.

Rate of Force DevelopmentLive

0.00s

Time to peak force

Force ▲

Explore Strengthwork

Recent Outcomes

Aryna Sabalenka

Winning a grand slam

Fixing a champion's serve

Gavin became the biomechanics coach responsible for fixing Aryna Sabalenka's serve, transforming her game and winning multiple Grand Slam victories and developing one of the most devastating serves on tour. The approach combined SSL's unique understanding of spinal mechanics and tendon elasticity.

Now our equipment and modalities are available to everyone.

Shop Equipment

Train Like A Pro

Flagship Product

Accelerated Isokinetic Machine

Used by elite athletes and PT studios

Learn More Shop Now

Reactive Tendon Strength

Plio (aka Supercat) Plyometric Press

Develop Rate of Force like an NFL athlete

Shop Now

Train Real Power

Plio Push Press

Explosive upper body power development

Shop Now

Elevate Human

Where Biomechanics Meets Elite Training