What is Run Your Days?

Run Your Days is a small business focused on coaching people of all abilities to their goals.

Coaching programs are individualized to guide you through your next season of running, strength training, or support you in training fitness for life, and are offered virtually or in-person.

Your fully customized program is the first step in falling in love with the strength of your body. And did we mention, you’ll have fun with it along the way?

Meet Coach K.

Dr. Kiersten McCartney is a runner, athlete, and scientist, and the spirit of sport and dedication needed to excel at any physical level captivates her. During her first undergraduate exercise science class things ‘clicked’, she had found her space, which led to earning a masters degree in Kinesiology. After spending over 3 years as a personal trainer, group fitness instructor, and full-time clinical exercise physiologist at the Shirley Ryan AbilityLab, Kiersten knew pursuing a Doctorate of Physical Therapy would further her knowledge and open up more opportunities to grow in this field. She has found a niche in combining her love of sport with her intense curiosity of the science of the human body, working to explore our individual potentials, no matter what our beginning is. Together she uses these to help others, like you, achieve their sport, health, and fitness goals.

Credentials + more

  • A Doctor of Physical Therapy and graduate of the University of Delaware (class of 2020), the #1 Physical Therapy School in America

  • A current PhD - Student at the University of Delaware studying Biomechanics and Human Movement Sciences researching exercise in people with chronic stroke

  • An advocate for Adaptive Sport & Fitness - her passion lies where sports and neurorehabilitation intersect, and she aims to facilitate the engagement and participation of people with disabilities in physical activity, exercise, and sport

  • An Exercise Physiologist with 2+ years of clinical experience at the Shirley Ryan AbilityLab (formerly known as the Rehabilitation Institute of Chicago) where she developed individual fitness programs for people of all abilities, including those with neurological impairments, such as spinal cord injury, amputation, stroke, and Parkinson’s Disease

  • A competitive runner with nearly a lifetime’s worth of experience, from elementary school to the NCAA and post-collegiately with six Boston Marathon Qualifications

  • An American College of Sports Medicine Certified Personal Trainer and Functional Movement Systems Level 1 coach

  • Passionate USA Track & Field Coach who thrives off motivating and empowering athletes on the journey towards their goals, uncovering how incredibly capable they are along the way

  • Hands-on Patient Educator with 4 years experience teaching anatomy & physiology as an adjunct professor for Occupational Therapist students and over 800 undergraduate students while managing a human-cadaver lab at the University of Illinois-Chicago


  • Exercise Physiologist

  • Adaptive Training Academy - Adaptive & Inclusive Trainer

  • American College of Sports Medicine Certified Personal Trainer

  • Doctor of Physical Therapy, University of Delaware

  • Certified USA Track and Field Coach, Level 1

  • M.S. in Kinesiology, University of Illinois at Chicago