All of our trainers are degreed and certified, which means they’ve been trained in anatomy, physiology, and nutrition. They understand that no two bodies are alike and will work with you to get fit at the right pace.


Hayley Krez

Hayley earned her Bachelors of Science in Exercise Science from Iowa State University where she was also a four-year member of the Iowa State Women's swim team.

While at Iowa State, Hayley earned NSCA All-American honors in strength and conditioning. Before coming to AASA, Hayley served as a sports performance coach in Park City, Utah working with a wide variety of athletes ranging from youth, to Paralympic, to professional.

While in Utah, she also assisted in coaching the Park City High School swim team to a Utah State Championship. Hayley’s athletic training knowledge and swimming background led her to Austin where she is excited to enhance our strength and dryland programs.


Miles McGriff

Graduated with a degree in Kinesiology from the University of Texas and has been in the fitness business for over 20 years now.

Since receiving his diploma, he has gone on to receive certifications from: NSCA, NASM, ACSM, TPI (Titleist Performance Institute) and PRI (Postural Restoration Institute).

Miles loves anything athletic that pushes the boundaries. Over the years he has been a mountain bike racer, competitive Crossfit athlete, ultra runner, triathlete, Olympic Lifting competitor, Spartan racer and much more. His passion is helping people change their lives through fitness.