Who We Are

About Sports Recovery Annex

Sports Recovery Annex is a walk-in sports recovery facility that provides everyday athletes and professionals access to state-of-the-art recovery tools and equipment once only available to Olympic athletes and the Pro’s.

Recovery after training and competition will allow you to perform in your next competition or training session without being compromised by muscle soreness and/or fatigue. Recover to enhance your exercise performance.

If you are a novice runner training to compete in your first 5K, weekend warrior working on your general fitness or an elite athlete looking to perform your best, the Sports Recovery Annex is the place to come to help you stay in the game and achieve your goals. Our highly trained sports medicine staff include nationally certified athletic trainers, board certified physicians and support staff all with the sole focus to help keep you injury free so you can achieve your athletic goals.

For the professional athlete, our job is to help you do your job. Perform!

Sports Recovery Annex has everything you need to actively recover between workouts and competitions.
Remember…You are only as good in your training as in your ability to recover.

We are your community Athletic Training Room.



Dr. Anthony Iselborn


Dr. Anthony Iselborn


Anthony J. Iselborn, DC, DACBSP, ATC, LAT, CSCS, FIAMA, PES
Dr. Iselborn completed undergraduate studies at the University of the State of New York and the University of Florida. He received his Chiropractic Degree from Life Chiropractic College in 1984. He is Board Certified as a Diplomate of the American Chiropractic Board of Sports Physicians (DACBSP).

Dr. Iselborn is credentialed by the National Athletic Trainers Association as a Certified Athletic Trainer (ATC), the National Strength and Conditioning Association as a Strength and Conditioning Specialist (CSCS) and the National Academy of Sports Medicine as a Performance Enhancement Specialist (PES).

He is fellowship trained to perform acupuncture by the International Academy of Medical Acupuncture (FIAMA). He is also certified in Dry Needling Trigger Point Technique. In 1999 and 2011, Dr. Iselborn was selected by the United States Olympic Committee to provide chiropractic care at the Colorado Springs Olympic Training Center. He is a member of the United States Olympic Sports Medicine Society and The American Chiropractic Association Sports Injury Council.

Dr. Iselborn is the Team Chiropractor for the Jacksonville Jaguars NFL Professional Football Team. He is a member of the Professional Football Chiropractic Society.

He has extensive training and has been certified to perform Active Release Technique (ART), Graston Soft Tissue Technique Procedures, Kinesiotaping, and is FAKTR Certified (Functional and Kinetic Treatment with Rehabilitation).

Dr. Iselborn served as a member of the United States Olympic Committee Sports Medicine Team at the 2011 Pan American Games.
Dr. Iselborn was selected and served with the United Stated Olympic Team as a member of the Medical Staff for the Games of the XXX Olympiad in London, England 2012.


  • Licensure, Florida Board of Chiropractic Medicine, CH4759
  • Athletic Training Board Licensed, AL715
  • Florida Board of Chiropractic Medicine-Acupuncture Certification, CH4759
  • Certified Athletic Trainer (ATC), National Athletic Trainers Association, 029702485
  • Certified Strength and Conditioning Specialist (CSCS), National Strength and Conditioning Association, 9910310
  • USA Beach Volleyball Sports Medicine Staff
  • American Chiropractic Board of Sports Physicians-Ethics Committee Chairman


  • Hawaii Ironman Triathlon World Championship Finisher – Kona
  • Boston Marathon Finisher
  • River Run 15K National Championship 58:59 PR
  • Cross Florida Bike Ride Finisher – 160 miles
  • RAMROD Finisher – Ride Around Mount Ranier One Day – 180 miles
  • Maine Marathon 3:10 PR


Ashley Iselborn


staff Ashley

  • B.S. in Biology
  • Taught for 3 years
  • Swim Coach for Atlantic Coast High School
  • Swam competitively for 15 years
  • Graduate of The Bolles School
  • Excited to expand the family business and bring the very first “community athletic training room” to the people of Jacksonville
  • Free time spend with dog (Oliver), traveling the world and spending time with family and friends


Catherine Horita

Athletic Trainer

Athletic Trainer: Catherine Horita


Catherine Horita is a certified athletic trainer originally from Arkansas. She’s excited to work at Sports Recovery Annex because she genuinely enjoys working with athletes and aiding their performance. Her passion for helping athletes is a great match with Sports Recovery Annex because they provide innovative and original services. When she’s not working, Catherine enjoys reading and going to the beach.

Some of Catherine’s achievements include:

  • Recipient of Jay Rogers Athletic Training Scholarship
  • Recipient of Zachary B. Hooper Athletic Training Memorial Scholarship 2010 and 2011
  • Recipient of Benjamin Franklin Lever Fellowship Scholarship 2012


Jon Vredenburg



Jon Vredenburg, MBA, RD, CDE, CSSD, LD/N
Jon Vredenburg is a Registered Dietitian with over 20 years of experience providing nutrition services to people in all walks of life. He consults for athletes, training facilities, fitness centers, and colleges throughout the state of Florida and has also served as a nutrition consultant in the National Football League and Arena Football League. Jon is a Board Certified Specialist in Sports Dietetics and a nationally-touring speaker on sports nutrition. He is a contributing writer to many local and national publications, and has been featured on television and radio for his work with athletes. He is a certified Health Fitness Specialist through the American College of Sports Medicine and served on the Florida Governor’s Council on Physical Fitness.


Matt Mathis

Massage Therapist

 Massage Therapist, Matt Mathis


Matthew G. Mathis was born February 26, 1992 of Okaloosa County Florida. He is fresh out of school and encouraged to jump into this new opportunity. Matthew has been brought up around sports having family ties on many professional level. Matthew is a renowned soccer player in the state of Florida bringing home a state championship, as well on the collegiate level. He understands the sports atmosphere and the vigorous tribulations associated within. Matthew works close with his clients ensuring, they have the best positive outcome of treatment through PRE-Event, Intern, and POST Event massage.