EP Team


Dr. Joey Glenn


owner, Sports chiropractor AND head performance specialist 

Joey is a Sports Chiropractor and Certified Strength and Conditioning Specialist. After obtaining his Bachelor's Degree in Health Sciences from the University of Iowa, Joey had an opportunity to work with Core Performance/Athlete's Performance™ in Los Angeles, California helping everyday people and professional athletes reach their highest athletic potential.

Joey continued his education at Palmer College of Chiropractic West and earned his Doctor of Chiropractic Degree and Strength and Conditioning Specialist certification.  Joey worked for the Martinez Veterans Administration Hospital, treating our nation's heroes and completed his preceptorship treating professional athletes and weekend warriors alike at Water and Sport Physical Therapy in San Diego.  After developing a passion for Olympic weightlifting, Joey obtained his USA Weightlifting Sport Performance Coach certification. 

Dr. Joey has a keen eye for proper biomechanics.  He is well-trained in deciphering between motor control limitations, mobility limitations, and other performance leaks.  

Joey is ecstatic to return to the Midwest and share his knowledge of health, movement and athletic development in his home state.  


Hannah Glenn, owner, Admin director and Massage therapist


Hannah is office manager/administrative director and soft tissue therapist at Engineered Per4mance.  Originally from the Des Moines area, Hannah graduated high school from Dowling Catholic.  She continued her schooling in Iowa City at the University of Iowa graduating in 2011 with a bachelors degree in business studies.  She then moved to California with husband, Joey, to pursue the highest of massage therapy education at one of the highest ranked schools, National Holistic Institute (NHI) in San Jose.  During her time there, she completed an internship with the San Jose SaberCats arena football team, providing myofascial therapy to injured athletes.  Through this, she gained interest in massage therapy for enhancing athletic performance and healing.

Hannah is a life-long athlete, which inspired her to pursue a career in the health profession.  She enjoyed playing soccer for 16 years of her life on various competitive teams, as well as being involved in track, basketball, and softball while growing up.  In her spare time, Hannah enjoys cycling, strength training and practicing yoga.  She looks forward to sharing her experiences and expertise to help people achieve their optimal potential.


Dr. Matt Zirretta

DPt, sfma, fms

Physical therapist and performance specialist

Matt is a physical therapist and a performance specialist at EP. He played Division I men's soccer at the University of Kentucky and Northern Illinois University prior to completing his Bachelor's Degree in Integrative Physiology at the University of Iowa. Following his undergraduate coursework Matt continued his education at the University of Iowa within the Carver College of Medicine where he graduated from the Doctor of Physical Therapy Program.

He enjoys working with patients of all ages and levels. His specialties include treating a wide range of musculoskeletal conditions and post surgical interventions. Matt's goal is to collaborate with you to help you return to your prior level of function, improve your quality of life, and/or maximize your performance in both sport and life. He utilizes the FMS/SFMA and Postural Restoration Institute (PRI) techniques to assess and correct movement deficiencies, postural asymmetries, and muscle imbalances.

Matt is active in the Ankeny community as his wife and Father-In-Law are both teachers and coaches. He continues to dedicate his time to the sport of soccer as the Performance Coach for the Iowa Rush Soccer Club. While not in the clinic he enjoys trying new restaurants with his wife, playing soccer with his black lab, exercising, and following Iowa Hawkeye athletics.


Dr. Emily Hilderbrand

physical therapist and performance specialist

Emily is a physical therapist at EP.  She did Division I women's gymnastics at the University of Nebraska-Lincoln where she was a first team Academic All-American in 2014 as well as Big Ten Gymnast of the year.  She received her Bachelor's Degree in Nutrition Science upon her graduation in 2015.  Following UNL, she continued her education at Des Moines University, where she received her doctorate in Physical Therapy in 2018. 

As a former athlete having to go through physical therapy, Emily's goals as a physical therapist is to collaborate with her patients to help them return to their prior level of function.  She believes physical therapy is about treating the person as a whole rather than just the injury or diagnosis.  She wants to work with her patients to see them reach their goals and full potential. 

Billy Snyder

SFG1, USAW-L1SP, CF-L1 trainer

performance specialist and program director

Billy became interested in strength and conditioning during his middle school years.  In the beginning, he was very intrigued by body building.  As he entered high school, barbell and kettlebells became a big part of his training.  These tools were valuable in developing his strength and he loved how they influenced his performance in soccer, baseball, and track.  

While in college, he interned at Crossfit Energy in Ohio eventually moving up into a full time position. He gained a lot of experience with seeing people move and helping them move better He also achieved one of his goals in becoming a StrongFirst Girya Level 1 instructor in September 2014.  Billy attended The University of Akron in Ohio, graduating with a degree in Exercise Science: Strength and Conditioning in December 2014. 

Billy continues his pursuit for finding mastery in movements with kettlebells being his tool of choice.  He loves seeing people learning to move better, finding strength within themselves, and is excited to work with the Engineered Per4mance community.


Craig Konrardy, Performance specialist

USAw-1, MA-kinesiology


Craig comes to EP from the University of Northern Iowa where he graduated with his Master of Arts Degree in Kinesiology. While attending UNI, he spent a summer working with the UNI football team and a season with the UNI women’s basketball team. He also was the assistant strength and conditioning coach for the Waterloo Black Hawks Junior Hockey team. While working with the Black Hawks, he saw four players drafted in the 2017 NHL Entry Draft, along with more to be drafted in the Spring of 2018. Along with working with athletes at UNI and the Black Hawks, Craig completed internships with the Baylor University football team, Waukee High School, developed summer strength programs for the Coe College Baseball team, and developed high school speed and agility programs at the Cedar Valley SportsPlex in Waterloo.

Originally from Waterloo, Iowa, Craig is a high school graduate of Columbus Catholic High School in 2012. After high school he attended Coe College in Cedar Rapids, Iowa while playing baseball and majoring in Physical Education with an emphasis in Strength Development. 

You can find Craig working the afternoon Adult Fitness classes and Alpha Athlete classes. When Craig is not working he is trying to gain more knowledge to help benefit the members of EP and training for future PowerLifting events.