Meet Our Perth Team
At O2 Active, our team of Accredited Exercise Physiologists (AEP’s) and health and wellness professionals assist people with disability, injury or illness to move better, feel good and take part in everyday activities and community life.
Every team member is passionate about helping you experience better function, health, and wellbeing – irrespective of your fitness, age or ability.
O2 Active work with people throughout Perth and surrounding areas, including the Perth Hills, Mandurah, Yanchep, Northam and Merredin, to achieve their health goals using exercise and lifestyle interventions delivered with a positive and supportive approach.
CAITLIN HUNT
MANAGING DIRECTOR (AES, AEP, AUSCEP)
Caitlin has over 24 years of experience in allied health, specialising in musculoskeletal rehabilitation, pain, oncology recovery, women’s health, and longevity. An Accredited Exercise Physiologist, she sits on the UWA Master of Clinical Exercise Physiology Advisory Board, the Curtin Exercise Physiology Advisory Board, and the Exercise Oncology Professionals Advisory Group at ECU, and holds qualifications in Pilates and yoga. Every patient begins with a comprehensive baseline assessment and objective outcome measurement, giving referrers progress they can track. Alongside her Perth practice, Caitlin leads O2 Active’s regional Wheatbelt service — supporting clients to feel their best and live fulfilling lives through evidence-based exercise and lifestyle care.
ANNIKA RENKEMA
SENIOR EXERCISE PHYSIOLOGIST (AES, AEP)
Annika is a highly experienced Accredited Exercise Physiologist and second-in-charge at O2 Active Exercise Physiology. She holds a Bachelor of Science in Exercise & Sports Science and a Master of Clinical Exercise Physiology. Annika has worked extensively with clients living with complex and chronic conditions, delivering individualised, evidence-based exercise programs that enhance physical, mental, and emotional health.
Her clinical expertise includes rural health, mental health, metabolic conditions, and musculoskeletal rehabilitation, with a strong focus on Pilates-based exercise for injury prevention and long-term wellbeing.
EMILY SIERAKOWSKI
OPERATIONS MANAGER & SENIOR EXERCISE PHYSIOLOGIST
CAROLINE BROADWAY
SENIOR EXERCISE PHYSIOLOGIST (AES, AEP)
Caroline (Caz) is an Accredited Exercise Physiologist and qualified health coach who believes in the transformative power of movement. She specialises in oncology, osteoporosis, osteoarthritis, active ageing, falls prevention, and metabolic health, using exercise to manage chronic conditions and improve quality of life. Caz is passionate about making exercise accessible to everyone, regardless of age, ability, or health status. Her patient-centred approach focuses on support, education, and empowerment, ensuring every client feels valued, confident, and capable in their journey toward better health.
BEN LIVINGSTONE
ASSOCIATE EXERCISE PHYSIOLOGIST
(AES, AEP)
Ben has graduated with a Master of Clinical Exercise Physiology and a Bachelor of Science in Sport Science, Exercise and Health. Ben is dedicated to helping people discover the benefits that exercise can offer for the physical, mental, and social aspects of life. He strives to ensure that each client is heard with their personal goals catered for, to ensure that all ages, abilities, backgrounds, cultures, pathologies, and beliefs are treated fairly to create a safe and non-judgemental experience. Growing up in the regional Southern coast of Western Australia, Ben has a passion for promoting exercise physiology services to all regions including rural areas, and for those living in these regions to have access to client-centred health care.
LIAM TUBBY
ASSOCIATE EXERCISE PHYSIOLOGIST
(AES, AEP)
Liam holds a Master’s degree in Clinical Exercise Physiology and a Bachelor of Science in Exercise & Sports Science, along with certifications III and IV in Health and Fitness. His professional interests include working with peadiatrics, managing chronic cardiac, neurological, respiratory, musculoskeletal, and metabolic conditions. Liam is dedicated to fostering positive lifestyle changes through evidence-based exercise programs that are tailored to each person’s unique needs. He aims to enhance both physical and mental well-being, helping individuals lead healthier, more fulfilling lives.
JESS TREGILLES
ASSOCIATE EXERCISE PHYSIOLOGIST
(AES, AEP)
Jess graduated with a combined Masters in Clinical Exercise Physiology, and Bachelor of Science in Sport Science, Exercise and Health. With experience working alongside both senior and junior WAFL squads, Jess specialises in strength and conditioning for youth athletic development, and injury management to return back to sport for all abilities. Passionate about everything outdoors, she believes in getting creative with exercise choice finding the most enjoyable option for clients to support both their physical and mental health. When she’s not working you can find her trying all new types of movement such as training for a marathon, hiking and rock climbing.
KELLY HOLLIDAY
HEAD OF STRENGTH, CONDITIONING, PILATES & YOGA
Kelly brings over 17 years of experience in the fitness and wellness industry, with qualifications in Cert III & IV in Fitness and specialised training in Pilates, Yoga, Mindfulness Meditation, and Massage. She is passionate about the mind-body connection and supporting her clients’ physical, mental, and emotional well-being.
With a background in elite sport—representing Victoria in netball and softball—and 16 years in customer service with Qantas, Kelly combines movement expertise with exceptional people skills. She is known for creating meaningful, lasting connections with her clients.
IMMY HARRIS
ACCREDITED EXERCISE SCIENTIST
Imogen is an Accredited Exercise Scientist with a Bachelor of Exercise and Sports Science and is currently completing her Master of Clinical Exercise Physiology. She has a strong background in elite sport, having represented both state and national teams from a young age and worked as Assistant Strength and Conditioning Coach for the East Fremantle Sharks in the WAFL.
Imogen is passionate about the role of movement in improving not only physical health but also mental well-being, confidence, and overall quality of life. She believes everyone, regardless of age or ability, should have the opportunity to develop a positive, empowering relationship with exercise.
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North Fremantle - Exercise Physiology & Gym
Unit 1/124 Stirling Highway, North Fremantle WA 6159
Cottelsoe, Eric St. - Physiotherapy
Suite 13, Level 2, 36 Eric Street, Cottesloe WA 6011
Swanbourne - Movement Studio
142B Railway Street, Claremont, WA, 6010
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