Welcome to 4D gym:
home to Melbourne’s MOST expert personal trainers.

A muscular man with a shaved head and tattoos on his right arm, wearing a Miami basketball jersey, stands with arms crossed in a gym. 
Alex Stevenson
Ruby
Xander
Stefan
Alex
Smiling woman in black polo shirt standing in a gym or fitness center with exercise equipment in the background 
Jacinta

ALEX

Alex, the founder of 4D Gym, brings both expertise and vision to the training floor. With a background rooted in strength training and a commitment to delivering exceptional client experiences, Alex created 4D Gym to redefine what personal training can be. Known for his no-nonsense approach and dedication to each member’s personal success, he fosters an environment where clients feel known and supported, but remain challenged. Alex’s mission is simple: to help everyone who walks through 4D’s doors achieve their best, both in their health and beyond.

RUBY

Ruby is one of Melbourne’s elite figures in the fitness industry, recognised for both her competitive achievements and her technical expertise as a personal trainer. Specialising in hypertrophy, body recomposition, and performance-focused nutrition coaching, she delivers results through precision programming, structured progression, and meticulous attention to detail. Her approach blends evidence-based training principles with real-world competitive experience, ensuring clients not only transform their physique but understand the strategy behind it. 

Stefan

Stefan is a dedicated personal trainer with a strong foundation in functional fitness and strength training. Known for his passion and hands-on coaching style, Stefan motivates clients through every session while keeping safety and technique at the forefront. He brings together evidence-based training methods and a personalised approach, helping each client at 4D Gym break through barriers and build real, lasting results.

Xander

Xander is a dedicated personal trainer with a passion for helping people move better and perform at their best. Approachable and encouraging, Xander meets clients where they are and builds programs tailored to their individual goals. With a focus on smart, progressive training, he guides each client at 4D Gym through a journey that builds confidence, strength, and lasting results.

Alex

Alex is a dedicated personal trainer with a passion for helping people move better and perform at their best. Approachable and encouraging, Alex meets clients where they are and builds programs tailored to their individual goals. With a focus on smart, progressive training, she guides each client at 4D Gym through a journey that builds confidence, strength, and lasting results.