Elite Trainers

Find a Personal Trainer in North Frisco

Kobrin Brown, certified personal trainer at NexGen Fitness North Frisco

Kobrin Brown | ISSA-CPT

Certified Personal Trainer

Kobrin, AKA “KB”, has been around fitness his entire life and was an athlete growing up. With over 20 plus years of sports and exercising, KB genuinely has a passion for fitness and made it his life’s goal to help others achieve their personal long-term and short-term visions. KB is a Certification Personal Trainer through ISSA (International Sports Science Association) and plans to attain more certifications in the future, further expanding his intellect in the field to better help his clients. KB genuinely cares about his clients and those around him and is constantly advocating fitness and healthy living in the lives of everyone he comes in contact with. His mantra is: “You never know the impact you can make on someone’s life”.


Josh Fuller, certified personal trainer at NexGen Fitness North Frisco

Josh Fuller | B.S. | ISSA-CPT

Certified Personal Trainer

Josh has always been an active person. He grew up playing basketball, football, and running track & field. While attending Southeastern Oklahoma State University, Josh developed his passion for weightlifting after seeing phenomenal changes in his physique. After graduating from college, Josh decided to get his personal training certification through ISSA (International Sports Sciences Association) so that he could help others accomplish their own personal health & fitness goals! Josh interned at Michael Johnson Performance and has experience training elementary-age children all the way up to professional athletes. His mission is to help every client reach their fitness goals regardless of age, gender or limitations!


Sara Ray, certified personal trainer at NexGen Fitness North Frisco

Sara Ray | B.S. | NASM-CPT

Certified Personal Trainer

Sara has always had a great interest in fitness and living a healthy lifestyle. She grew up in the Houston area playing various sports and spent her college years running cross country and track for Sam Houston State University. After graduating with a Biology and Kinesiology degree, Sara decided to pursue her passion for fitness by motivating others to reach their fitness goals. She received her start in corporate fitness training in small groups and has been thoroughly enjoying the profession ever since. Sara believes the formula for achieving any goal entails dedication, perseverance, hard work and having fun through the process. Sara remains an avid runner with aspirations of trimming her 5K time. When not working with clients, Sara likes playing with her dogs and stand up paddle boarding at White Rock Lake.


Dr. Jason Rehwalk, Doctor of Chiropractic with NexGen Fitness North Frisco

Dr. Jason Rehwald | D.C. | B.S. | Certified AMIT

Doctor of Chiropractic | Certified AMIT Practitioner (Advanced Muscle Integration Technique)

Dr. Jason Rehwald graduated from Parker College of Chiropractic with a Doctor of Chiropractic and a Bachelor of Science in Anatomy in December 2000.

Dr. Rehwald is a certified AMIT (Advanced Muscle Integration Technique) practitioner and a licensed Acupuncturist. He specializes in muscle activation therapy, sports injuries, sports rehabilitation, post surgical rehabilitation, spinal health, extremity manipulation and complete wellness care of pediatrics and adults. He has a true passion for treating athletes of all levels from youth up to the professional levels.

Beyond practice, Dr. Rehwald is passionate about sports, exercise, nutrition, and diet. He is an avid endurance athlete having completed 14 marathons, including the Boston Marathon in 2013 and 2014, a Half- Ironman, and many other triathlons and relay road races.

To learn more, visit www.eliteintegrationchiro.com