
Posterior Chain.
Engineered for elite gyms, athletic facilities and commercial fitness centers. Built with heavy-duty steel, smooth biomechanics and uncompromising durability.

Selectorized back extension with padded hip clamp and full-range extension arc.
The GROWL Back Extension clamps the hips and drives a full erector-spinae extension arc — direct posterior chain loading for rehab and performance floors.
Every GROWL machine is built on 11-gauge structural steel with laser-cut components, sealed precision bearings and a tactical powder-coat finish. Commercial-grade upholstery, smooth cable and cam paths, and clean modern styling that holds up in high-traffic facilities for years.
Whether you're outfitting a private gym, athletic facility or commercial fitness center, our team can help design the perfect equipment package.