Aaron Hornstra, B.S., CSCS – Owner

Aaron Hornstra, B.S., CSCS (Owner)

With over 20 years of personal training experience, Aaron Hornstra brings a rare combination of academic excellence, elite institutional training, and real-world athletic background to every client he works with.

Aaron earned his Bachelor’s degree in Exercise Science from Ithaca College, with concentrations in Exercise, Nutrition, and Coaching — building a strong foundation in the science behind human performance and body transformation. He holds the prestigious Certified Strength & Conditioning Specialist (CSCS) designation from the National Strength & Conditioning Association, one of the most respected credentials in the fitness industry.

His professional development includes internships at two world-class institutions: the Stanford University Strength and Conditioning Department and the Duke University Center for Living — experiences that shaped his approach to evidence-based, results-driven training. As a former collegiate basketball player at Ithaca College, Aaron also understands firsthand the dedication, discipline, and mental toughness it takes to reach your goals.

Aaron is CPR/AED certified through the American Heart Association, ensuring every session is conducted with the highest standards of safety and professionalism.

Whether you’re looking to build strength, lose weight, rehab an injury, or transform your health, Aaron’s depth of knowledge and passion for the craft make him uniquely equipped to help you get there.

Aaron has helped me trim down, increase my stability and improve my overall strength and fitness. I love the power 30 minute sessions – they work into my schedule well and give me a solid workout. Aaron’s approach with both fitness and nutrition has been terrific – I am a believer!

Ellen Harvin

My trainer, Aaron, is just fantastic. He makes every workout challenging, but keeps the atmosphere encouraging and fun. He is very knowledgeable, and researches the best exercises to achieve my individual goals, and adapts our program as we progress and change priorities. … I had tried for nearly two years on my own to increase my vertical leap with no success. Within weeks of working with Aaron I was starting to see results in this area as well as overall strength and conditioning.

Debbie Hilliard

I came to Core Results about 18 months ago after a recommendation from a good friend and 6 months after having an inexplicable heart attack. Aaron has become my trainer and friend. He is focused and always aware of my activities and knowledgeable on how to push the right workouts! I train 3 days a week and walk everyday and have felt the best I have in years! Thank you Aaron!

 Jeff Stoney