Experience:
Dr. John Rusin is an internationally recognized strength coach, Doctor of Physical Therapy, and injury prevention specialist with 19 years of elite-level training experience. Known for his pain-free performance training approach, Dr. Rusin combines advanced degrees in exercise science and physical therapy with real-world coaching expertise to help clients achieve strength, mobility, and longevity—without pain.
Over his career, he has designed performance, regeneration, and body transformation programs for MLB All-Stars, NFL All-Pros, Olympic gold medalists, world-record-holding powerlifters, and professional athletes from eight major American sports leagues. Named a Top 50 Health & Fitness Expert by Men’s Health, Dr. Rusin has taken training principles proven at the highest levels of sport and adapted them for everyday people over 40, 50, and beyond, making elite-level injury prevention, sustainable health, and functional fitness accessible to all.
He is the founder of the Pain-Free Performance Specialist Certification (PPSC), the largest and fastest-growing fitness education program in industry history, certifying more than 20,000 trainers, physical therapists, physicians, and coaches since 2018. His evidence-based methods have helped hundreds of thousands of people worldwide build muscle, lose fat, prevent injuries, and stay active for life.
