About us

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Performance Physique Team

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Arj Thiruchelvam

Head Coach

James Phipps

Athletics Coach
MNU Certified Nutritionist

Kate Thiruchelvam

Performance Swimming Coach

Simon Eustace

Strength & Conditioning Coach

As featured in or seen on:
Magazine, newspapers and tv that feature Performance Physique

Elite clients

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Jake Vincent

London 2012 Men’s Water Polo Team GB Athlete. We work with Jake on his strength training to maintain his competitive conditioning. Jake also receives ongoing nutrition coaching to ensure he’s competing at his full potential at international events.

Francesca Clayton

Fran competed in the London 2012 Olympics as part of the first ever GB Women’s Water Polo Team. Similarly to Jake, we support Fran with strength conditioning and regular nutrition guidance.

Aidan Mitchell

Aidan is a British Swimming Medalist training with us to improve his strength, power and conditioning to provide him with a competitive advantage in the run up to Olympic Qualification.

Arj profile picture

Arj Thiruchelvam

Head Coach

Performance Physique founder Arj has a BSc Hons in Applied Sports Science from Loughborough University & has co-designed two Sports Science Degrees for Oxford Brookes University.


Arj has worked with world-leading nutritionists Martin MacDonald & Mac-Nutrition, GNC and Holland & Barrett to deliver training programmes and has 15 years’ experience of performance mentoring, including working as a UK Athletics Sprints & Jumps Coach.


Providing clear fitness & nutrition guidance utilising the latest scientific research, Arj coaches novices to Team GB Olympians to consistently improve their personal bests.

James Phipps

(BSc) – Athletics Coach
MNU Certified Nutritionist

BSc Honours Applied Sport Science – Oxford Brookes University

Level 3 Personal Trainer

Boxing Coach

Assistant Athletics Coach

Sports Therapist

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(BSc PG Cert)
Performance Swimming Coach

ASA Level 3 Swimming Coach

GB Pentathlon & Talent Camp Coach

Simon Eustace

(Msc) – Strength &
Conditioning Coach
UK Athletics Coach
Sports Science Lecturer
Performance Strength & Conditioning Coach
Trained as a 400m runner alongside Martyn Rooney