Momentum Pilates is part of the Momentum Group of companies. We partner with Momentum Physiotherapy and Health Services and Norwest General Practice.  

Our qualified talented instructors work closely with the Momentum Health team to deliver the best possible services to our clients.


Alyna Rost

Director/Founder/POLESTAR MENTOR/Pilates Instructor/Barre Instructor

BA Media, Diploma of Pilates, ARAD, Grad. English National Ballet School, London.

Alyna has been dancing since she was six years old and trained at the Robyn Kirkland School of Ballet in Sydney, as well as the Boston Ballet School in the USA. Dancing ‘Swan Lake’ with the English National Ballet at the Royal Albert Hall was a career highlight.

Alyna was first introduced to Pilates when she was twelve years old.  It was during her time in London whilst studying and dancing with The English National Ballet School, that Pilates became part of her daily training. It was through the exploration of Pilates that Alyna became intrigued by the movements, muscle strength and muscle lengthening Pilates provided. Alyna recognised the benefits of Pilates and the well being it created.

Alyna completed her accreditation of Diploma of Pilates teacher training at Polestar Pilates and is both committed and enthusiastic about contributing to the health and well-being of her clients. Alyna is also a Polestar Mentor.

Alyna has also completed a degree in Bachelor of Media at Macquarie University with a focus in writing and dance.



Angela Black

Pilates Instructor/POLESTAR MENTOr in training

Angela initially started Pilates as a form of rehabilitation and muscle balancing following a running injury. She hoped it would offer an alternative to surgery. Within a few weeks Angela experienced such promising results that it inspired her to pursue Pilates as a profession.

Angela brings with her a wealth of knowledge and experience as an operating room nurse. Her clinical specialties and interests include: Urology, Cardio-Thoracic, Orthopedics and General Surgery. By combining this broad knowledge and expertise with Pilates, she hopes to use this valuable experience to help clients prepare for surgery and assist them with their recovery.  Her intricate understanding of anatomy and rehabilitation is a valued benefit to Momentum Pilates clients.

Angela is also a professional classic singer and performs regularly with Opera Australia. Since commencing her training in Pilates, Angela has noticed a marked difference in her breath control and breath-body connection which is a vital aspect of singing. Angela’s philosophy towards Pilates is that it can benefit everyone and it is not always about moving perfectly, but instead about moving optimally for the individual.

Angela has a wealth of Qualifications including: Bachelor of Applied Science; Nursing, Graduate Certificate in Perioperative Nursing, Bachelor of Music Performance, First Class Honours in Music Performance and Churchill Fellow.



Lauren McGrath

Pilates Instructor/POLESTAR MENTOR in training & Barre Instructor

Certificate in Ballet Teaching Studies, ARAD, Diploma in Professional Pilates.

Lauren is a Classical Ballet Dancer and a Professional Ballet Teacher.

She has been dancing since the age of five and trained full time as professional student at the McDonald College and Ecole, Ballet School in Sydney.

Lauren has performed with the Premier State Ballet Company, Ecole Ballet Theatre and Studio Tibor’s Ballet Company. Performing Don Quioxte, Sleeping Beauty and the famous Pas de Quatre were some of Lauren’s career highlights.

Through dancing, Lauren was first introduced to Pilates at the age of twelve. Pilates brought Lauren body awareness, muscular strength, and longer, leaner lines through her body. She noticed a huge improvement in her performance and believed Pilates helped prevent injuries. After undergoing ankle surgery during her full time training, Pilates assisted Lauren’s rehabilitation, decreased her recovery time and helped to maintain her strength while she was unable to dance.

Lauren’s awareness of the importance of Pilates for Dancers and sports professionals made her decide to become a Pilates Instructor.

She was driven to cross train dancers and athletes to help them become aware of their bodies, improve their performance and prevent them from injury.

Lauren completed her Diploma of Professional Pilates instructor training with Polestar Pilates. 

Working with dancers and athletes was only the beginning of her journey as a Pilates Instructor.

Pilates continues to inspire Lauren and her passion shines through her teaching. Lauren enjoys working with a variety of clients and seeing the amazing results it brings to each individual.



Hope StropnickY

Pilates Instructor & Barre Instructor

BASI Certified Pilates Instructor.

Qualified Barre Instructor.

Originally from the USA, Hope brings with her broad experience across many Pilates and Barre disciplines.

Hope’s sessions are fun, energetic, and hard work!




Pilates Instructor

Certified Pilates Instructor.

Adriana is an ex dancer with a background in jazz and ballroom. This lead to performances on music Channel [V] and live sporting events. Through her dancing career she also loved excerise and later found a new passion for aerobics and Pilates. This inspired Adriana to begin studying Pilates and she went on to complete a Certificate IV in Pilates. She is excited about helping and motivating her clients to achieve the best possible results. 

Adriana's love for Pilates and dance make her sessions fast paced and fulfilling.