Meet Our Team
Ali Khalil Beigi
Founder & Director
Ali Khalil Beigi is the Founder and Director of NZ Strength Institute, with more than 20 years of experience in strength and conditioning, athletic development, rehabilitation, movement assessment, and Active Release Techniques®.
Ali's approach is built on a simple belief: before you train the body, you must understand it. He combines assessment, strength training, corrective exercise, and soft tissue therapy to help people improve performance, recover from injury, and build long-term physical resilience.
Ali's career has been shaped by some of the world's leading minds in strength and rehabilitation. Charles Poliquin shaped his understanding of biomechanics, structural balance, and programme design. Professor Stuart McGill deepened his knowledge of spinal biomechanics and injury mechanisms. Dr. Michael Leahy, founder of ART®, shaped his approach to soft tissue therapy and movement restriction. Dr. Ken Kinakin, Louie Simmons, Stéphane Cazeault, and Dr. Layne Norton further refined his expertise in muscle testing, maximal strength development, athletic programming, and evidence-based nutrition.
Over the past 10 years, Ali has trained and mentored many of New Zealand's strength coaches and personal trainers, many of whom have gone on to build successful careers in the industry. He has also worked with professional athletes, rehabilitation clients, and everyday people looking to improve their health and performance — coaching built not on trends, but on careful assessment and the ability to connect multiple systems of the body.
Ali is a Holistic Nutrition Practitioner and ART® provider, having overcome major injuries in his own athletic career — including knee reconstructions, shoulder surgery, and spinal injuries. That experience shaped his coaching philosophy: training must be individualised, intelligent, and built on a strong foundation.
Today, through NZ Strength Institute, Ali educates coaches in biomechanics, corrective exercise, and programme design — with a mission to raise the standard of coaching across New Zealand.
James Hassell
Education Co-Founder
James Hassell is co-founder of the New Zealand Strength Institute (NZSI) and a Personal Trainer at Les Mills Britomart. A dedicated strength trainee for more than 20 years, James has developed a deep interest in biomechanics, movement assessment and evidence-informed coaching. His approach has been shaped by the work of industry leaders including Charles Poliquin and Stéphane Cazeault, with a strong focus on applying proven principles in a practical, coach-friendly way.
After more than two decades in senior leadership within the financial services industry, James combined his expertise in systems, process improvement and education with his passion for strength training to help raise the standard of personal training. He specialises in distilling complex concepts into practical, structured frameworks that coaches can confidently apply on the gym floor. Through NZSI, James is committed to equipping personal trainers with high-quality education that improves coaching practice and delivers better outcomes for both PTs and their clients.
Upcoming Course: 1-2 August 2026
Biomechanical Assessment & Corrective Exercise Strategies
