Sub30 Fitness
Sub30 Core Restore Program designed by Sub30 Core and KC Fit


Sub30 Core has joined forces with KC Fit’s Kirstyn Campbell to help fitness professionals worldwide understand the importance of training the core region in a safe and effective manner.  Sub30 Core Restore is a series of entry level workouts in mp3 format designed to target:
New Mums
Pelvic Floor & TA (Transverse Abdominals)
Diastasis Recti (Ab Separation)
Rebuilding a Weak Core
Lower Back Problems


Sub30 Core Restore workouts are entry level workouts designed to rebuild the core safely and effectively.

Plug in & Play

Simply download the mp3 workout to your mobile device and play - anytime, anywhere.

Exercise Video Demonstrations

Specialty entry level exercises for clients along with PDF timed instructions and in-depth video demonstrations.


Subscribers will receive full support and education on all aspects of training new Mums.

A New Workout Every Month

Subscribers will receive a fresh and new Sub30 Core Restore™ workout delivered to your inbox every month!

Branded MP3 Workouts 

Each individual mp3 workout has its own unique name and exercise timing commands with calming music.


We've done all the hard work for you! Target new and existing customers by adding Sub30 Core Restore™ mp3 workouts to your timetable.

Helping New Mums

We focus on helping Mums with Pelvic Floor, TA and Diastasis Recti issues.

Build Confidence

Giving clients back that confidence to undertake all manner of exercises and tasks.

Strengthen Back Muscles

Those with back problems or a weak core will benefit from these workouts.

Better Posture

Improving core stability, strength, and Posture.
KC Fit core exercise demonstration image
KC Fit core exercise demonstration image
KC Fit core exercise demonstration image

Get started with Sub30 Core™ Restore!

Add a new session to your timetable in 2021!

We've packaged up 2 incredible core restoring mp3 workouts to get you started!  
Price in Australian Dollars (AUD)
Offer ends Midnight Christmas Eve (AWST) 
Product_Sub30 Core Restore_Genesis

Core Restore - Genesis

Single workout
MP3 Track Time: 21.20 mins
7 different exercises 

Workout includes: 
PDF Trainer printout for session timings and video exercise demonstrations.
Watch video demonstration
Product_Sub30 Core Restore_DeepDive

Core Restore - Deep Dive

Single workout
MP3 Track Time: 20.45 mins
6 different exercises 

Workout includes: 
PDF Trainer printout for session timings and video exercise demonstrations.
Watch video demonstration

What trainers are saying...

Core Restore Workout Testimonial_Stacey TaylorCore Restore Workout Testimonial_Tanya-Glenn Walker
Core Restore Workout Testimonial_Amanda SeniorCore Restore Workout Testimonial_Jillian Olarenshaw

Try out a Sub30 Core Restore Mp3 Workout for FREE!

This is a great opportunity to try our core restoration mp3 workout format before committing to purchasing! Simply sign-up to our mailing list and we'll send you Sub30 Core™ Restore mp3 - Foundation workout for FREE!
Fitness Professional Kirstyn Campbell

Sub30 Core Restore Co-Creator

I’m mum of 2 adorable kids Micaela and Ethan, wife to one cheeky husband Chad, based in a small country town Huapai, in the Northwest of Auckland, New Zealand. I’m very driven and passionate about training women safely & effectively for their body. Teaching mum’s how to repair their body to get as fit and strong as they’d like with strong core foundations. 

With the increase of mum’s wanting specialized exercise, in June 2017 I went online launching an online fitness membership for mum’s ‘KC Fit @ HOME’ supporting over 200 mum’s nationwide, and have online foundational courses ‘Sneeze without Wees’ and ‘KC Fit Core Restore’ which are approved and supported by a Women’s Health Physio to ensure their accuracy and effectiveness.

I’ve had the pleasure of creating a pelvic course for trainers ‘Pelvic Floor Essentials for Fitness Professionals’ and am now running workshops to help upskill other trainers, helping them to understand how to train their female clients.

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