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.
PROF STEVE SELIG
CLINICAL ADVISOR (CARDIAC EXERCISE PHYSIOLOGY) (PhD, AES, AEP, ESSA Fellow and Life Member)
Prof. Steve Selig is O2 Active’s Clinical Advisor for our cardiac exercise physiology program. With a career spanning university and hospital clinics, Steve is one of Australia’s most experienced clinical exercise physiologists, specialising in complex cardiac and chronic-disease clients — and the developer of the fit.test protocol we use to estimate VO₂ peak and prescribe a safe, individualised range of exercise.
In his advisory role, Steve mentors Caitlin and the O2 Active team, helps design our cardiac testing and clinical-governance standards, and supports the evidence base behind our program. His involvement gives our clients — and their referring doctors — confidence that what we deliver is grounded in best practice.
A lifelong exerciser who still swims every day, Steve is living proof of the philosophy behind our work.
Riley Thomas
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.
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.
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.
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.
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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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