Our Team
Meet the passionate professionals behind Holistic Strength! A team committed to delivering personalised care through expertise, empathy, and collaboration.
Vian Botma
Managing Director & Accredited Exercise Physiologist
Hi, I'm Vian. I’ve always had a strong passion for health, sport, and helping others. After graduating as an Exercise Physiologist in Perth in 2011, I’ve worked with a wide range of people, from those recovering from injury, to those living with chronic conditions or disabilities. My early work with sporting teams helped me appreciate the connection between physical and mental wellbeing, which ultimately led me to create Holistic Strength.
Holistic Strength was founded on the belief that healthcare should treat the whole person, not just their symptoms. Our approach considers all aspects of health, including exercise, nutrition, sleep, stress, and more. I’m proud to see the business grow into a multidisciplinary team delivering truly person-centred care.
Outside of work, I enjoy time with family and friends, going to the gym, and watching sport.
Elizabeth Jones
Accredited Exercise Physiologist
Hi, I’m Liz. I manage services in Perth’s northern suburbs as an Accredited Exercise Physiologist with Holistic Strength. My background as a competitive acrobatic gymnast and coach in both the UK and Australia sparked my early interest in injury prevention and movement education. After retiring from gymnastics due to a chronic hip condition, I redirected my passion toward Exercise Physiology.
I graduated from Edith Cowan University in 2021 and completed a Diploma in Remedial Massage Therapy to complement my skill set. My clinical interests include neurological and neuromuscular conditions, musculoskeletal injuries, oncology, and both men’s and women’s health. I love bringing creativity and fun into exercise programs to help people reach their goals and improve independence.
In my spare time, you’ll find me crafting, reading, staying active—or hanging out with my dwarf rabbit, Neo.
Jaydn Simkin
Accredited Exercise Physiologist
Hi, I’m Jaydn. I am originally from a small town in country WA called Northampton, where my sense of community, helping others, and love of sport originate from, and has equipped me with the passion for being an Exercise Physiologist.
I have previous experience with musculoskeletal injuries, and assisting all individuals with starting their exercise journey to achieve their goals and setting up for long-term success! I truly believe both physical and mental well-being are closely linked in life, and I strive to create a fun and supportive environment during exercise as a result.
In my spare time, I keep up with all things sport such as cricket, AFL and basketball, as well as visiting family and friends!
Andrew Haynes
Accredited Exercise Physiologist & Doctor of Philosophy (PhD)
Hi, I’m Andrew. Originally from Wales, my long passion for health and fitness led to the start of my journey in exercise sciences in 2005.
I have a BSc (Hons) in Exercise Science and MSc in Exercise and Nutrition Science from universities in Liverpool and Chester respectively. I received a prestigious International Research Scholarship to conduct my PhD at the University of Western Australia (UWA) in Exercise Physiology and Biochemistry between 2013-2017. I have worked as a teaching and research academic in Exercise Physiology at UWA since 2017. In this role, I lead clinical trials aimed at improving our understanding and ability to optimise human health through exercise and behaviour change; whilst educating the next generation of exercise scientists. I regularly publish in peer-reviewed scientific journals and mentor PhD students.
In 2023, I completed my second Master’s degree (Clinical Exercise Physiology) to gain Australian accreditation. I began working at Holistic Strength in 2025, to help people achieve their physical- and health-related goals through individually tailored exercise. I enjoy seeing people reap the physical and psychological benefits of exercise and improve their quality of life.
I am married, have two children and a dog. Outside of work, I enjoy maintaining an active lifestyle, movies, music and playing the guitar.
Nahla Channaoui
Accredited Exercise Physiologist
Nahla is a Clinical Exercise Physiologist with a strong academic foundation, having completed her Bachelor's in Sports Science and Exercise Health and a Master’s in Clinical Exercise Physiology, both at the University of Western Australia (UWA). She has worked across a diverse range of health conditions, including musculoskeletal, cardiovascular, neurological, metabolic, pre- and post-cancer, mental health, and pediatric care.
Having a deep-rooted passion for health and fitness, Nahla is also a former semi-professional soccer player. Her experience in sport gives her a unique perspective on the physical and mental demands of rehabilitation. She is a strong advocate for the collaborative approach between Exercise Physiologists and other allied health professionals, knowing that a holistic, multi-disciplinary strategy is key to optimising patient care.
Kiya Alimoradian
Certified Practicing Speech Pathologist and Team Leader
Hi, I’m Kiya – a Certified Practising Speech Pathologist and Team Leader at Holistic Strength. I also lecture in Speech Pathology at Edith Cowan University’s School of Health and Medical Sciences.
Growing up bilingual in Western Australia, I developed a fascination with language and how people communicate. This passion led me to study Linguistics before completing a Master of Speech Pathology in Sydney. My career has taken me across Australia, including memorable work in remote Northern Territory communities, before returning home to Perth.
I have a strong interest in multilingualism, Augmentative and Alternative Communication (AAC), speech and voice, and I’m experienced in dysphagia management and Mealtime Management training. Outside of work, you’ll find me bushwalking, gardening, doing yoga, or relaxing with my cat and dog.
Sara Cappelletti
Occupational Therapist
Hi, I’m Sara. I’m an Occupational Therapist with a passion for supporting people to achieve their goals through meaningful and purposeful activities. My career has spanned aged care, disability services, and behaviour support, giving me a broad understanding of client needs and the value of strong therapeutic relationships.
Prior to joining Holistic Strength, I worked for over three years as a behaviour consultant. This experience deepened my knowledge of restrictive practices and strengthened my ability to work collaboratively with clients, families, and support teams.
Outside of work, I enjoy crafting, riverside walks, and catching up with friends over coffee or wine. I’m also a dedicated follower of Aussie comedy—and a proud (if sometimes heartbroken) Richmond Tigers fan.
Marja Roodt
Occupational Therapist
Marja graduated in South Africa in 2006 and has worked across several industries, including life insurance, reinsurance, and private practice, where she conducted medico-legal and Functional Capacity Assessments. She also holds a post-graduate diploma in Vocational Rehabilitation.
After moving to Sydney in 2016, she embraced time with her young children while also becoming a qualified Kindermusik Educator and completing a Certificate IV in School-Based Education Support. Marja values human connection and draws on diverse experiences to support individuals with empathy and understanding.
Now based in Perth, she enjoys family camping trips, cycling, playing piano, and cooking up new recipes.
Boris Kazakov
Accredited Practicing Dietitian (APD)
Hi, I’m Boris, an Accredited Practising Dietitian (APD) at Holistic Strength, with over 30 years of experience across both public and private sectors in Western Australia and interstate.
I graduated from Curtin University with a Bachelor of Applied Science (Nutrition and Food Science) and a Postgraduate Diploma in Dietetics, and later completed the Sports Nutrition course at the Australian Institute of Sport (AIS) in Canberra. My work is grounded in the belief that everyone’s needs are unique, which is why I specialise in designing personalised nutrition and health programs. I work collaboratively with clients to achieve their goals in a sustainable and realistic way.
In my spare time, I enjoy cooking, eating well, and staying active through cycling, walking, and gym workouts. I’ve completed several City to Surf events and two half-marathons. I also value rest and quality time, often spent catching up with family and friends over a coffee or meal.
Itisha Bhatnagar
Physiotherapist
Hi, I’m Itisha, a Physiotherapist at Holistic Strength, proudly based in the beautiful city of Perth.
I hold a Doctor of Physiotherapy from Bond University on the Gold Coast, along with a Bachelor’s and Master’s degree in Physiotherapy, specialising in Orthopaedics. I bring over 13 years of experience across hospitals, community settings, aged care, and outpatient services, with clinical expertise in musculoskeletal, orthopaedic, paediatric, and geriatric care.
I’m passionate about the power of movement and keeping exercise programs fun, effective, and tailored. I believe in self-management and supporting the connection between physical and emotional wellbeing. I stay up to date with the latest physiotherapy research and enjoy empowering clients through education and movement.
Outside of work, I enjoy gardening and spending quality time with my family and friends.
Justine Mamootil
Allied Health Assistant
Hi, I’m Justine, one of the Allied Health Assistants at Holistic Strength.
I hold a Certificate IV in Occupational Therapy and Physiotherapy Assistance and have completed extensive training in sensory behaviours, including Classroom Behaviour Management, Social Skills training, and Sensory Fitness training for Autism. I enjoy working with both children and adults in a variety of settings.
In my downtime, I love spending time with my husband and two teenage sons. I’m also a passionate supporter of Australian Ninja Warrior – I was a National/State Judge and WA State Coach for the Australian Ninja Games from 2017 to 2023.
I believe that “participants learn best when moving and mimicking in natural environments.” Let’s keep moving and growing together.
Dianne Yao
Administrative Assistant
Hello! I’m Dianne, the Administrative Assistant at Holistic Strength.
I bring years of experience in administrative support and thrive on helping both our clients and team stay organised. My background includes managing accounts receivable/payable, handling customer inquiries, maintaining accurate data and records, and supporting the team with various day-to-day administrative needs.
With a background in nursing, I understand the importance of holistic wellbeing – both mental and physical. I bring this mindset to my role, aiming to support a smooth and caring experience for all who engage with Holistic Strength.
In my free time, I enjoy light exercise and spending time with my family over a good meal.
Julia Bitara
Marketing and Intake Officer
Hi! I’m Julia, the Marketing and Intake Officer at Holistic Strength.
With a background in customer service, project coordination, and social media, I help welcome new clients and grow our online presence. I'm passionate about making healthcare more accessible through clear communication and thoughtful content.
Since joining the team, I’ve enjoyed working closely with our therapists and highlighting the value of person-centred care, especially around disabilities, chronic conditions, and recovery.
Outside of work, I maintain a healthy lifestyle by playing sports, and focusing on personal development.
Holistic Strength is an NDIS registered provider
We are a community provider that offers a range of allied health services throughout Perth.
Contact Us
Phone: 08 6156 8656
Fax: 08 9200 5077
Email: admin@holistic-strength.com.au
Head office & mailing address: Suite 3, 326 Newcastle Street, Perth, WA, 6000