
The 3 Phase Abdominal Workout
A six-week abdominal training ebook by Nikolai Babkoff. Follow three progressive phases with illustrated workouts, technique cues and a bonus full-body session.
Explore the Ebook
Build a stronger foundation with purposeful core training, better control and steady progression.








Start with structured abdominal training, then build on your foundation as your strength and confidence grow.

A six-week abdominal training ebook by Nikolai Babkoff. Follow three progressive phases with illustrated workouts, technique cues and a bonus full-body session.
Explore the EbookXtreme Core is the core-training pathway from Xtreme Athlete, bringing structure and purpose to abdominal development, movement control and strength.
Your core supports the way you lift, move and train. Progress begins with controlled movement and a plan you can follow consistently, then develops as you add challenge at a level that suits you.
Created by Nikolai Babkoff, the pathway starts with the 3 Phase Abdominal Workout: a practical six-week digital program built around three two-week phases. Explore the full product details, add it to your cart and keep your programs together in your Xtreme Athlete account.
Xtreme Core is Xtreme Athlete’s pathway for core strength, abdominal training and movement control. The current starting point is the 3 Phase Abdominal Workout ebook.
No. Core training also supports strength and movement control. Visible abdominal definition depends on factors including body composition, nutrition, genetics and your wider training.
Yes. The ebook is digital and can be accessed through your account after payment, wherever you train.
No. If you are pregnant, postpartum, injured or managing a medical concern, ask a qualified health professional about a suitable starting point. Explore Xtreme Rebuild for the women’s and mums pathway.
See how people have used structured coaching and consistent action to create lasting change.

Across a focused seven-day block, Juan gained more than 2 kg of muscle and 22 cm across measured areas while reducing body fat by 2.5 percentage points.

In 13 days, Jean-Luc lost more than 5.5 kg, reduced his combined measurements by 10.8 cm and lowered his body-fat result by 4.5 percentage points.


Good programming has structure, but it also has personality. The best plan is one you understand, enjoy and can keep showing up for.
Nicole SchaerNick is a great trainer, I have become leaner and built muscle in a short amount of time. Great positive classes. Couldn't recommend more.
Eliyan LobezThis class definitely packs a punch, highly energetic, fun yet definitely set to get you results. Both male and female members from all backgrounds, all shapes and sizes putting in the effort. Extremely motivating and i highly recommend it to anyone, looking to shape up get fit and have fun.
Adrienne PurmanundCustomised and thoughtful service with exceptional inter personal skills from all that work there.
Reviews from Xtreme Athlete personal training clients.