Meet our Personal Trainers

Samantha Codario


Samantha has been a Certified Personal Trainer and Group Fitness Instructor for over 7 years. She served as a Graduate Assistant for Fitness at Florida International University where she earned her Masters Degree in Sports Science. Now the Coordinator for Personal Training and Assessments here at AU, she hopes to make a positive impact by sharing her fitness knowledge and serving as a healthy role model to the AU community.   Samantha specializes in strength & conditioning as well as weight-loss programs. She believes anyone can find their place in the fitness center with a little guidance and perseverance.

"When you give 110%, Exercise is 100% mental and 10% physical. Train the brain and the rest will follow!"

Craig Culp


Since his days in grade school, Craig has competed in multiple sports – including gymnastics, track & field, wrestling, swimming, football, soccer and lacrosse – and played club lacrosse during and after college. When not coaching and training, Craig also is an avid outdoorsman and enjoys mountain & road biking, rock climbing, boating and backpacking, as well as teaching wilderness survival skills to people of all ages.

"My energy and enthusiasm come from a deep belief that we all have the power to be who we want, lead the lives we desire and perform at our peak with a little direction and motivation. That's where I come in by helping clients define a vision for themselves, align their actions toward that goal and then successfully execute the plan!"

Chelsea Horne


Chelsea is an NASM Certified Personal Trainer. She received both her BS and MS degrees at Binghamton University where she played Division I softball for 4 years. She holds a 2nd degree black belt in Tae Kwon Do and has experience in weight training, strength and conditioning, and Crossfit. Chelsea loves working out and looks forward to helping and motivating all her clients to achieve and surpass their training goals.

Ashley Vicino


Ashley has been a personal trainer for the past 13 years. She received a BS in Health Promotion from American University where she also played Division I Volleyball. She has acquired a great amount of experience working with clients of all ages and fitness levels. The focus of her training has been on general fitness, weight-loss, injury prevention, pre/post natal exercise, senior fitness and individuals with sport specific goals. Ashley is dedicated to the well-being and success of her clients. Her ultimate goal is to empower her clients to live a healthy lifestyle.

Nate Macomber


Nate Macomber is a NASM Certified Personal Trainer who has been training at American University since Spring 2013. He is a senior in the Kogod School of Business.  He is working towards a minor in Health Promotion. Growing up he has always been active, playing numerous sports competitively and skiing since before he could walk. He loves working out and being active outside the gym. Seeing clients achieve their goals and break new records is what motivates him as a trainer.

"Success is the sum of small efforts repeated day-in and day-out."