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

Physical Therapist/Owner


  • Dual Board Certified | American Physical Therapy Association (APTA) 
    • Women's Health Clinical Specialist 2008; 2018
    • Orthopedic Clinical Specialist 2009; 2019
  • Certified Strength & Conditioning Specialist (CSCS) | National Strength & Conditioning Association 2002-present
  • Peer-Reviewed & Media Publications
  • Certificate of Achievement-Pelvic Physical Therapy (CAPP-Pelvic) (APTA)
  • Creator: Ms Fit Therapy© Core + Pelvic Floor Program
  • Master Dry Needling trained in functional dry needling
  • Masters in Physical Therapy (Mayo Clinic Rochester, MN | 2001)
  • B.S. in Kinesiology-Exercise Physiology (UW-Madison | 1999)


Community Involvement & Service:

  • 100+ Women Who Care - Madison, Champion member, 2024-25
  • Board Member: Director of Communications, Section on Women's Health (APTA; 2011-2013)
  • Clinical Fellow: EMG Biofeedback-Pelvic Muscle Dysfunction (BCIA; 2007-2022)
  • Coach: MS track & field and girls volleyball; K-5 soccer and softball
  • Founder/President: Future Leaders WI Scholarship Foundation (501c3); "Myrtle & MJ" educational scholarship program for resilient, action-oriented students in southern WI pursuing healthcare & education careers (2016-2020)
  • Mentor & Facilitator: pre-PT & pre-med observation; HS & adult health care career exploration 
  • Multi-decade commitment via time/talent/treasure to organizations and individuals committed to the health & well-being of women & children 
  • Recipient: Erik J Aasen Humanitarian Award (Mayo Clinic) 


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, preventive health education, and rehabilitation and injury management.


Bridging the gap between traditional rehab and fitness, Jennifer is passionate about women's health, running, 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 has an 18year history with the sport of triathlon and completed her first marathon in Minneapolis-St Paul in 2009. At present Jennifer enjoys training for road and trail races alike. She is an avid marathoner, repeat Boston Qualifier, and as of March 2024 is a Six Star Finisher having run all six World Marathon Majors: Chicago, Boston, New York, Berlin, London & Tokyo. During downtime she enjoys reading, traveling, nature, concerts, and time connecting with family & friends.



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 2024

"Regardless of what you are or what you have been, you can still become what you may want to be."


~ W Clement Stone ~