Your Personal Trainers

Kari Ritterman
Director of The MVMT Studio &
Certified Personal Trainer

Canadian turned Aussie; Adrenalin junkie; Fun-run fanatic; Dog lover.

Kari is the mastermind behind The MVMT Studio, and has been empowering people to live their best life for the last 16 years as a personal trainer.

Her love for health and fitness started from a young age, after trying her hand at an array of different sports. Her softball skills saw her represent Canada, before being scouted to play in New Zealand.

Kari's expertise extends beyond traditional personal training. She is well-versed in various disciplines, including Pre and Post Natal Training, Altitude Training, and Nutrition for Exercise and Sport. As a certified Yoga Instructor, she embraces the holistic approach to wellness and understands the mind-body connection. Kari is also an advanced Boxing Fitness Trainer, and she has completed workshops in BOSU and TRX, utilizing innovative training tools to enhance her clients' workouts.

Sessions with Kari at The MVMT Studio are more than just fitness sessions; they are dynamic pathways to strength and personal achievement. Her coaching style is motivating, high-energy, and fun-filled, creating an environment where clients feel inspired to unlock their inner power and reach new heights of physical performance.

Expect Kari to provide expert guidance on precise technique, functional strength training, proper breathing, and effective recovery methods. Alongside her knowledge, you can count on her infectious positivity, encouragement, and a good dose of laughter to keep those abdominal muscles engaged and spirits lifted.

Make your next move with Kari and The MVMT Studio. 

Ryan Young
Head of Personal Training

Has 2 different coloured eyes, South African by blood New Zealand by passport. Football/Soccer fanatic and always brings the vibes through energy and humour.

Ryan began his career as a gym instructor at Les Mills Asia Pacific, New Zealand's premier gym, after completing his Bachelor of Sport and Fitness in 2007. He then worked for three years as a Sports Manager at a High School, gaining diverse experience with a broad range of clientele.

During his tenure as a Sports Manager, Ryan was mentored by Kirsten Hellier, an award-winning coach of Olympic and Commonwealth Gold Medallist Valerie Adams. Kirsten, a successful athlete in her own right, won several medals, including a silver at the 1994 Commonwealth Games.

Ryan then advanced to the role of Club Manager, where he played a pivotal role in establishing and building a 24/7 gym at Melbourne's Royal Children's Hospital. This gym caters to doctors, nurses, support staff, and families, allowing Ryan to interact with a broad spectrum of clients.

With 12 years of experience, Ryan understands that one style of training does not fit all. He strives to create a personalized approach for each of his clients, incorporating functional training in his sessions.

Ryan is dedicated to motivating his clients, ensuring that each workout not only improves physical performance but also educates clients on proper and safe exercise techniques, making each session a challenging and enriching learning experience.

Make your next move with Ryan at The MVMT Studio

Kaisa Kastegren
Certified Physiotherapist, Personal Trainer & Pilates Instructor

Finnish girl who escaped the snowy winters to Australian sun, beach and outdoor lifestyle. (But then she found herself living in Melbourne)

Kaisa’s Physio background combined with Personal Training and Pilates ensures clients are in safe hands. Kaisa has been helping clients becoming strong, flexible and pain free for a decade.

Kaisa is passionate about  holistic approach with health, fitness and wellbeing.  “To be truly healthy and balanced we´ll need to combine exercise with stress management, good sleep habits and nourishing food.”

With coaching Kaisa specialised in ideal muscle balance, flexibility, posture and deep core muscle conditioning. Kaisa emphasises individuality, safety and quality of the exercises. She has a very nurturing and caring teaching style with clients.

Kaisa is an addicted learner and a self-help-junkie. She is always reading and studuying anything from musculoskeletal rehab, nutrition, mindfulness and stress management to holistic health. At the moment she is making her own probiotic Kefir drink  inspired by the latest gut microbiome health studies.

Over the weekends you`ll find Kaisa somewhere in the great Victoria´s nature. She loves hiking trips, bush walks and picnics. Breathing in the fresh air and admiring the beauty of the surroundings calms the body and the mind.

Make your next move with Kaisa at The MVMT Studio