JK Fitness Home – NEW

My body is strong, so is my will

Founder & President

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.

JULIA KARLSTAD, M.ED., CSCS - Founder & President at JKFITNESS

Comprehensive Cryotherapy and Nutrition Services in San Antonio, TX

Discover a new fitness level with JKFITNESS, your premier personal trainer in San Antonio, TX. Our dedicated team of professionals is here to guide you on your individualized fitness journey and offer tailored programs to meet your needs.

Custom Training Solutions

Whether you’re interested in endurance training to increase stamina or functional training to improve overall fitness, you can count on our team to create personalized fitness programming that helps you achieve your fitness goals.

Yoga Training

Enhance your well-being with our yoga training. Our experienced instructors will lead you through invigorating yoga poses and teach focused breathing techniques to strengthen your body and calm your mind.

Cryotherapy Services

Experience the rejuvenating benefits of cryotherapy services. Our state-of-the-art treatments help accelerate recovery, reduce inflammation, and enhance overall performance.

Functional Nutrition Services

At JKFITNESS, we understand the importance of nutrition in achieving your fitness goals. Our expert nutrition coach and dietitian offers personalized guidance to optimize dietary choices. Trust our experienced team to deliver comprehensive solutions for your cryotherapy and nutrition needs in San Antonio, TX. Call JKFITNESS for more information!

Feed your health

Our knowledgeable and professional personal trainers are dedicated to helping you meet and surpass your fitness goals.

Proven Results

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Rock solid wall

The JKFITNESS Rock Solid Club was created to recognize and celebrate significant health and fitness accomplishments of JKFITNESS clients! In order to be inducted into the club, you have to be nominated by one of the JKFITNESS staff and then selected with a unanimous agreement from all staff.