Our Team | JK Fitness Staff

Julia Karlstad, M.Ed., NSCA-CSCS, ISSA-SFN Founder & President, JKFITNESS, LLC San Antonio Location I’m Julia Karlstad and I am the President and Founder of JKFITNESS, LLC. I have worked in the fitness industry and specifically the medical wellness community for several years. I hold over fourteen years of experience developing, implementing and directing exercise, education …

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My body is strong, so is my will JULIA KARLSTAD, M.ED., CSCS Our degreed, experienced and passionate personal trainers will get you in the best shape of your life. We are committed to helping you achieve your health, fitness and nutritional goals. Book an appointment Get More Info individualized semi-private personal training and Nutrition Services …

Kickstart Your 2025 Health Journey with San Antonio’s Premier Personal Training Studio

As we embrace the fresh start of 2025, JKFITNESS, San Antonio’s leading personal training studio, invites you to transform your health and fitness journey with our exclusive “Kickin’ Bad Habits” boot camp. This special event, taking place this Saturday, January 11th, at 10 AM, combines an invigorating group fitness session with expert nutrition guidance to …

Meet Your JKFITNESS Personal Trainers

  Looking for the best personal trainer in San Antonio? Well, look no further than JKFITNESS. Our personal training studio has been awarded Best Fitness Studio six of the past seven years in a row! Our personal training studio is committed to offering one-on-one attention and personalized guidance from an experienced team of qualified personal …

Cryotherapy for Winter Recovery

Winter brings unique challenges to our fitness and wellness routines. Cold weather, holiday stress, and increased sedentary time can impact our physical health. At JKFITNESS, we have THE cutting-edge solution to help you stay healthy and recover effectively: Localized Cryotherapy with the °CRYO Penguin machine.   What is Localized Cryotherapy? Localized cryotherapy is a targeted …

Finding Balance: A Personal Trainer’s Guide to Holiday Nutrition

  The holidays are coming and we know it is one of the most challenging times of the year to make sure you stay on track. Here at JKFITNESS, our certified nutritional coach works hand in hand with our personal trainers to educate and provide the tools necessary for you to be successful this time …