Trainers and Instructors


In the state of Oklahoma, anyone can become a personal trainer. Yes, even you! However, at Kaizen Performance we strive to provide you not only the best environment to achieve your goals but also an experienced, educated and certified staff. We know you have lots of gyms to choose from, we’ve made the decision easier by providing a team determined to help you fight to achieve your goals in the most efficient and beneficial process possible. Don’t believe us? Come on in and find out for yourself.

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Garrsion Niemiec MS, CSCS, NSCA-CPT, USAW-SPC

Sports Strength and Conditioning
Fat Loss/Weight Management
Group Fitness Training Youth Training

Garrison is Co-Owner of Kaizen and the founder of G Fit Training LLC. He is a personal trainer and strength and conditioning coach from Arvada, Colorado. He has his Masters in Exercise Physiology and has his bachelor’s from the University of Oklahoma.


Monica Godsey

Specializations Yoga

Monica began her yoga journey in late 1999, studying Hatha-style yoga with author and yogi, Kimberly Byer-Nelson. Initially, yoga felt like a way to unify her background in dance and various other aspects of athletics and physical fitness. Through the years, yoga has become a place of comfort and challenge, continually offering new places to go and new elements of practice both on, and off the mat. Monica completed her 200 hour RYT in April 2018, and enjoys teaching at studios in Norman and Oklahoma City, sharing a healing and strengthening practice of yoga, while growing with students.


Chad Mathis BS, NSCA-CPT

Weightlifting Strength Training
Senior Fitness Contest Prep Strength Training

Chad Mathis is a Personal Trainer from Watonga, Oklahoma where he was a 2x State Champion. He received his Bachelor’s Degree in Exercise Science and graduated Magna Cum Laude from Southwestern Oklahoma State University  where he also played football. Chad was an intern under Chat Williams at Youth Performance and obtained his Personal Training Cert. through the NSCA. He was the Head Trainer at Norman’s 10 Gym for a year and half and also trained independently at Steel Fitness in Norman for a little over 2 years. Currently, Chad, along with Garrison Niemiec, owns and trains at Kaizen Performance Gym and has found great success working with clients ranging from ages 7-81, high school and collegiate level athletes, and also Figure, Bikini, and Men’s Physique Competitors.

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Bakker Shields, ESA

Specializations Personal Training Group Fitness

Ever since I started in fitness, I have been obsessed with learning the ins and outs of how we can change our bodies and achieve the form we desire. For me though, fitness is much more than just the physical manipulation of your body. I have seen first-hand in both myself and the others that I have helped how physical fitness can transform a person, giving you more confidence and self-appreciation than you had ever though possible. I am also a firm believer that taking control of your health and building discipline in that aspect of your life will in-turn spill over and positively impact everything else you do.

Hopefully you can tell I am here to help you, transform you, not just physically but mentally as well. We WIIL chase your full potential, TOGETHER.


Ruben Zamarron

Brazilian Jiu-Jitsu
Muay Thai Kickboxing Self Defense Youth Martial Arts


Cory Punto

Specializations Yoga

Cory began teaching in 2010 with a certification from YogaFit Training Systems. In 2015, she completed her 200 hr track with Yoga Mazé. She is set to complete a 500 hr certification, with her final hours obtained from the Prajna Yoga School.  

Practice discussions will center around alignment and engagement of anatomy, and mobility through balanced strength. All are welcome and can expect to be guided with compassion and encouragement at any level of experience.

Aside from Yoga, Cory is passionate about education, family, design, and nature.