About Trevor Cassidy

About Me

Trevor Cassidy is a NASM-certified personal trainer (CPT, CES, PES), certified nutrition coach, and fully insured fitness professional with over 13 years of experience training clients across New York City and Northern New Jersey. His background includes working in a physical therapy facility, giving him a deep understanding of rehabilitation, corrective exercise, and safe movement progression.

A lifelong athlete, Trevor played professional rugby for Rugby United New York during the 2019 and 2020 Major League Rugby seasons. He also played club rugby with Old Blue NYC and competed abroad in South Africa and Australia. Trevor was part of the USA national team player pool in 2013-2014 and represented USA Selects in 2013. His career as a professional athlete gives him a unique perspective on training, recovery, and what it takes to perform at the highest level — insights he brings to every client he works with.

Trevor builds every training plan from scratch based on your individual assessment, goals, lifestyle, and preferences. His approach combines progressive overload principles, periodization science, and integrated nutrition guidance to create programs that are both effective and sustainable.

Certifications & Education

• NASM Certified Personal Trainer (NASM-CPT)
• NASM Corrective Exercise Specialist (NASM-CES)
• NASM Performance Enhancement Specialist (NASM-PES)
• NASM Certified Nutrition Coach
• CPR/AED Certified (American Red Cross)
• Fully Insured

My Training Philosophy

According to Trevor Cassidy, the best training program is one you'll actually stick with. That's why every program he designs balances scientific rigor with practical sustainability. Whether you're training for strength, weight loss, sports performance, or general health, the fundamentals remain the same: progressive challenge, proper recovery, solid nutrition, and consistent accountability.

Trevor trains clients in private gyms, commercial fitness centers, home gyms, parks, and outdoor spaces across Manhattan and Northern New Jersey. He also offers fully remote online training programs for clients who prefer the flexibility of training on their own schedule.

Areas Served