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Growing up, Kelsey wanted nothing more than to be a professional dancer. While she worked towards achieving this goal, she also enjoyed outdoor activities such as hiking and skiing. After a knee injury while dancing at elite and professional levels, Kelsey’s experience in physical therapy led her to pursue the profession herself with the mission of helping athletes continue to perform at their desired level.
Kelsey obtained her Doctorate of Physical Therapy in 2016 and has worked in a variety of settings including the ICU, stroke rehab, and outpatient settings, allowing her to have a thorough understanding of the experiences her clients have from the moment of injury well into their return to sports and activities. Kelsey also maintains a focus on performance optimization where she helps athletes prevent injury before it occurs while operating at their best.
Since moving to Colorado, Kelsey has fallen even more in love with the outdoors and has found cycling to be one of her favorite ways to explore, and an initial start with a love of gravel has quickly grown to love for all bikes. 
Adding bike fitting to her skillset was a natural progression, and has allowed her to have a more comprehensive understanding of and impact on the athletes she works with. 
When Kelsey isn’t working, you can find her riding, running, skiing, or exploring with her dog, Buttons.

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Jeff Rothschild is a Registered Dietitian (RD) with a Master’s degree in Nutritional Science and a Board-Certified Specialist in Sports Dietetics (CSSD). His clients include multiple Olympians, State Champions, triathletes competing at World Championships, collegiate All-Americans, and professional tennis players. He also works with people trying to complete their first cycling century, improve their energy levels, and learn how they should be eating to achieve their health and performance goals. Jeff is currently doing his PhD, researching the effects of pre-exercise nutrition strategies on the adaptations to endurance training.



Stef Callens is a Certified Personal Trainer and owner of Vitality Training Studio - a semi-private personal training studio in Littleton, CO. An engineer by education and after 10 years in the corporate world, Stef realized her passion is exercise, educating people on how to move better and helping them accomplish their fitness goal, regardless of what it is. She opened Vitality in 2019 to be able to provide more clients with an environment where they can feel comfortable getting stronger. Stef and the Vitality Coaches have experience training athletes and deconditioned people alike, aged pre-teen all the way up to people in their

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