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Running Analysis Checklist
Running Analysis Checklist - Our team of Physical Therapy has always been proactive in giving each patient the best treatment...
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10 Steps To Help Your Teen Athlete Avoid Injury
As a parent, you are always concerned about your child's safety. And one of the best ways to keep your teen athlete healthy...
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Youth Sports Performance
Do you have a child who is an athlete? At PREP Performance Center, we are dedicated to helping athletes of all levels reach...
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What Our Client's Say
I lost a lot of muscle mass, strength, knee extension, and would walk with a limp. Still dealing with those issues a year later, I luckily met Mary Kate and her team. Although I was hesitant about going back to therapy, I’m so glad I did! Despite needing to have an additional small corrective knee surgery, Mary Kate and her staff gave me a whole new perspective on therapy and my knee has improved by milestones!
Mary Kate Casey and her team are great. My daughter is a level 9 competitive gymnast and has been coming to Mary Kate on and off for years to address her sports related injuries including back and knee issues. She is well versed in all matters of youth related sports injuries and won’t give up until her clients can return to their sport pain free. From onsite PT to an online home program to dry needling you can get what you need. She is a true partner. Highly recommend.
100% honesty! Mary Kate saved my life. 3 years ago I had Spinal Fusion, S4,S5,L1 and L2. I was a wreck. My legs were killing me after the surgery, so much so that I thought the surgeon had done some damage. Mary Kate correctly diagnosed my pain as leg muscles and worked with me to fix my back and legs. We worked for 8 weeks,. 6 months later I had my first knee replaced...
Being an athlete for most of my life, I’ve suffered many injuries. Mary Kate and her team have everything you could need under one roof for physical therapy and performance. The knowledge and the tools that they have given me have gotten me through the recent ankle and knee pain of shin splints, back onto the treadmill running again at Orangetheory. This experience has by far been the best of the PT world that I’ve had…
Joe, PT at PREP Performance, is a gem in the PT world. He has a gift for soft tissue work and is an expert in the area of strength and conditioning. Both have been invaluable to me as Joe has been able to help me regain mobility in my mid-back and provide me with strengthening exercises that don't increase back pain!
I first went to Mary Kate for PT before and after surgery for lower back pain. Mary Kate is a wonderfully intelligent therapist who has a real talent for zeroing in on what I needed most. The work we have and the things she has taught me have helped with injury prevention since then too. I even brought my mother, who is in her late 80s, to see Mary Kate. So her expertise spans generations!
As a college athlete, I cannot recommend PREP highly enough. Definitely the most individualized, patient-oriented physical therapy experience I've had in years and years of getting injured playing sports. In addition to helping me heal my current injury, they've been able to resolve muscle issues that have been with me for years. Not sure there's a more accommodating, friendly, knowledgeable PT center in Chicago.
I worked with Joe Nelson after I tore my meniscus, opting not to pursue surgery. My experience with him has been excellent in all respects. He is very knowledgeable, prepared, engaged. He had my own specific goals top of mind and was able, in various respects, to meet me where I was at. He’s a good listener, and truly seemed interested in my physical pursuits and beyond. The center as a whole has a nice vibe… in short, a good place to work hard and to heal. I’m now just starting to work on running and hopeful that I will be able to return to running without surgery. So far so good.
I have been seeing Joe for about six months now and have been super impressed by his knowledge and work ethic. About three years ago I had a bladder augmentation surgery and lost my ability to control my pelvic floor muscles. Every week he comes up with new exercise to build up my core and work on strengthening those pelvic floor muscles through new and challenging exercises. I have seen great progress in the last six months compared to the 2 1/2 years after my surgery that I was not going to physical therapy.
Meet Our Therapists

Dr. Mary Kate Casey, PT, DPT
Owner & FounderDr. Mary Kate is a Founder of PREP Performance Center, physical therapy, and sports performance facility, emphasizes the...

Dr. Jack Davis, PT, DPT
Physical TherapistDr. Jack is passionate about providing individualized, quality care to help his patients achieve their full potential.

Dr. Joe Nelson, PT, DPT, CSCS
Physical TherapistDr. Joe is a Certified Strength and Conditioning Specialist through the National Strength and Conditioning Association. Dr....
Our Blog
Physical Therapy News
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Gymnastics is an extremely intense sport both emotionally and physically. The physical demands of this sport unfortunately...
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How to get higher clicks in Irish Dance? How to jump higher during my leaps? How can I increase my toe height? These...
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Low Back Pain in the Gymnast
Gymnastics is an extremely intense sport both emotionally and physically. The physical demands of this sport unfortunately...
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