Our Team

CoreActive is committed to employing highly-trained, experienced and compassionate Physical Therapy and Exercise & Movement specialists to benefit the health and wellness of our clients.


We are grateful for the opportunity to work with you on your health journey!


Jennifer U Klestinski, PT, MPT, OCS, WCS, CSCS, BCB-PMD

Physical Therapist/Owner/Founder


  • Dual Board Certified | American Physical Therapy Association (APTA) 
    • Women's Health Clinical Specialist 2008; 2018
    • Orthopedic Clinical Specialist 2009; 2019
  • Certified Strength & Conditioning Specialist (NSCA) 2002-present
  • Board Certified Biofeedback-Pelvic Muscle Dysfunction (BCIA) 2007 - present


Community Involvement & Service:

  • Recipient: Erik J Aasen Humanitarian award (Mayo Clinic) 
  • Former Board member: Section on Women's Health (APTA)
  • Volunteer: soccer, track/field, & volleyball coach; career day; service day; field day; wellness day 
  • Founder/past president: Future Leaders WI Scholarship Foundation (501c3) educational scholarships for resilient, action-oriented students pursuing careers in healthcare & education
  • Multiple decades commitment of time/talent/treasure to organizations and individuals dedicated to the health & well-being of women, children, and families


Born & raised in Madison WI Jennifer is honored to offer teens and adults of all ages a unique resource for specialty Physical Therapy and wellness through strength & conditioning, injury prevention and conservative injury management.


Bridging the gap between traditional rehab and fitness, Jennifer is passionate about running, women's health, and holistic care. Jennifer grew up playing team sports and studying ballet from a young age. After having children she began endurance training in earnest. Jennifer completed Ironman WI 2015 as an Ironman Foundation athlete raising funds for Coaches vs Cancer WI.  Jennifer enjoys training for road and trail races alike. She is an avid marathoner and repeat Boston Qualifier. She has completed five of six World Marathon Majors; last up: Tokyo. During downtime she enjoys reading, taking in concerts, traveling, and time connecting with friends & family.



Michelle S.

Class Instructor

Level II Essentrics® certified



Michelle teaches group and private Essentrics® classes at CoreActive Therapy. The positive and restorative impacts of Essentrics® inspired her to become a certified instructor to assist others in their pursuit of improving and regaining strength, mobility, and overall fitness. She enjoys teaching a variety of clients across age spans, from competitive and recreational athletes looking to increase performance or prevent/recover from injury, to individuals looking to improve their level of everyday functional movement.


Michelle holds a PhD in Curriculum & Instruction and a Masters in Social Work. Her hobbies include supporting her three kids in their interests, making stained glass art, well-intentioned gardening, attending live music concerts and festivals, being the caboose on the tandem bicycle she enjoys with her husband, playing board games, baking (and eating said baked goods), and reading great books. Michelle has been a long-time CoreActive Therapy supporter and is proud to be part of this team of exceptional service providers.




Julie S. 

Office Assistant




Julie is a lifelong runner and enjoys road biking. Physical fitness has always been important to her. Julie is an avid supporter, facilitator, coach, an advocate for the many benefits of youth athletics. She enjoys spending time watching her children's sporting activities with her husband. Julie also enjoys volunteer raising guide dogs for the blind through Occupaws.




© CoreActive Therapy 2021

"Never underestimate the power of dreams and the influence of the human spirit. We are all the same in this notion. The potential for greatness lives within each of us."


~ Wilma Rudolph ~       

3x Olympic Gold Champ, Track & Field, team USA