Meet the Central Fitness team!


We have an amazing team of experienced, passionate and dedicated professionals that are all here to help you keep healthy, fit and mentally stronger than ever.


So keep reading and meet the crew that will be giving there everything to keep you healthy and happy!

ALEX - Owner, Personal Trainer & Small Group Fitness Instructor. 


Hey I’m Alexandra Offen (Alex). I live and breathe health and fitness and am a big advocate for creating a healthy and balanced lifestyle. After high school, I went on to Double Major in Physical Education at Otago University. I then spent 1-2 years living in and visiting Australia, Canada, America, and Mexico. I coached internationally and in New Zealand for Regional and National level swimmers.

I then met my fiance Jonny . We decided to embark on a health and fitness journey together. That journey was opening Central Fitness Cromwell back in 2017. With the support of our incredible team we have created a space and a community we are very proud to be a part of.


We know how important staying healthy, fit and positive is for our well-being and we love that you have chosen to be a part of it, whether that be in the incredible Central Fitness Facilities across the South Island or with us online.

JONNY - Owner, Personal Trainer & Small Group Fitness Instructor 


Hi, I'm Jonny Roberts. I call Cromwell home and this is probably because of the friends I have made here.

So why the gym you ask. When I wasn't able to do all the things I loved most, I was at the gym. This place is my happy place.

There is an element of self-improvement about health and fitness that is addictive. This doesn't mean just lift something heavier, but finding out how to do it better. More importantly, this is across all platforms. Mentality, nutrition, movement, attitude, even connecting with people.


This is why it is so important that we stick together, create an online community and fight this fight together.

CHRIS - Cromwell Small Group Fitness Instructor

Chris Foster has been a member of Central Fitness Cromwell since almost the beginning!

He has been a regular - often training 5-6 times a week. You could say he is obsessed but in a healthy way!

He is now studying to become a qualified trainer. Chris is gaining experience and expanding his already impressive knowledge base by running our FuncFit classes. If you haven't had a chance to try his class yet, this is what one of the regulars had to say:

"I really enjoy coming to FuncFit, Chris has gotten to know me well and knows how to push me. Every class is different and I always leave feeling proud of myself and what I have achieved in his classes, thanks Chris"- Elle Tredinnick

Sarah - Cromwell MamaFit Instructor

Hi! I’m Sarah Gourlay, personal trainer and certified pre & postnatal specialist. 


I create fitness programming to prepare mums for pregnancy, labour, postnatal recovery & the activities of daily life as a parent. My goal is to equip you with the knowledge, strength, & function to heal, move well, & have the energy for the toughest job you’ll ever love -- motherhood. Training focuses on core & pelvic floor health, rehab, & a safe (re) introduction to movement postpartum.


As women, sometimes we don’t believe in ourselves the way we should. We think we should always be doing more, being more. We don’t always put ourselves first or have the strength to make changes in our lives. In our eyes, we’re never enough. 


All it takes is that one person to believe in you, help you along your journey, give you a little push when you need it, or simply take that first step. This is how I see my role as your coach AKA your ‘cheerleader.’

HANNES- Picton Gym Manager

Hi, my name is Hannes. I am a friendly South African in the Central Fitness Team!

For as long as I can remember I have always been involved in sports. This led me to study and complete my Honours degree in Sports Science. I've been very fortunate and have worked in the fitness industry for more than 10 years in South Africa and internationally. I have had the privilege of working with many professional athletes across various sporting codes such as running, cycling, javelin, squash, tennis, and golf, as well as training for triathletes and much more.

My specialty and motivation for training revolve around body movement mechanics and injury prevention; getting the body to move more economically. I particularly enjoy and promote mobility and functional training. I’m a huge advocate for movement, no matter your age or fitness level, and I firmly believe a healthy body stimulates a healthy mind.

Be healthy, you deserve it!

Amy Neilson - Nutrition Coach

Our happiness is often intrinsically linked to how we feel about our bodies, our relationship with food and underlying health issues. Having good information and on-going support is priceless when it comes to making successful, sustainable lifestyle changes. I will help you reach your goals and develop a happy relationship with both your body and food. 

Each session will leave you feeling inspired and motivated. I will help you build clarity around what you should be eating and help you understand why you make the food choices you do. We will talk about things beyond food and fitness, to help take control of your health and build a lifestyle you'll be proud of.

Find us

68 The Mall,
Cromwell, 9310


42 Dublin Street,

Picton 7220


85 King Street,

Temuka 7920

Contact us


Alex - 027 344 3054 

Jonny - 027 524 8831

Picton - Hannes

027 324 1864


Temuka - Shane

021 0222 3551

© 2017 Central Fitness 

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