Supported by 15 years of professional experience, Jon D. Kosrow is well-regarded in the field of fitness. Since 2020, he has served as the owner of JK Strength and Fitness LLC. Located in Villa Park, Illinois, JK Strength and Fitness stands out as an education-centric gym committed to reintegrating the core principles of physiology and science into the fitness domain. Specializing in strength training, the facility offers tailored programs for individuals and leveraged fitness methods such as maximal bench presses, squats and deadlifts, as well as tracks and analyzes an individual’s strength gains over the course of the year. As the owner, Mr. Kosrow provides fitness training and educates members in exercise science, biomechanics, physiology and anatomy while guiding members in achieving fat loss and/or muscle mass gain.
Mr. Kosrow commenced his career in 2009 as a certified personal trainer at Bally Total Fitness, remaining there until 2011. Following this position, he served as a personal trainer at Life Time Inc. from 2011 to 2012, a fitness specialist and certified personal trainer at Fitness Formula Clubs in 2013, and an intern strength and conditioning coach at Samford University in 2014. Concurrently, he was an assistant strength and conditioning coach at Carroll University from 2013 to 2015. Relocating to Miles College, Mr. Kosrow served as the director of strength and conditioning between 2015 and 2018, having then thrived as a strength and conditioning coach with E-Town Fitness between 2018 and 2019. Before assuming his most recent role, Mr. Kosrow was an exercise physiologist for Training for Warriors from 2019 to 2020.
An alumnus of Carroll University, Mr. Kosrow achieved a bachelor’s degree in exercise science in 2009 and a master’s degree in exercise physiology in 2015. He also became a certified strength and conditioning specialist in 2014 and received a USA Weightlifting Level I certification in 2015. Mr. Kosrow maintains affiliation with the National Strength and Conditioning Association and USA Weightlifting.
Impressively, JK Strength and Fitness was twice named the #1 Small Business in Villa Park, Illinois, in 2022 and 2023. Mr. Kosrow was also inducted into Who’s Who Among American High School Students early in his career. Looking forward, he aims to establish one or two additional locations of JK Strength and Fitness within his community to expand the facility’s reach without compromising their dedicated quality of service.
