Bess Mathisen, D.P.T. 


Inertia Physio & Pelvic Health

  Inertia is the force by which an object in motion stays in motion and an object at rest stays at rest.  

  Inertia Physio and Pelvic health was founded in 2021 driven by the belief that we feel better, smile more, and think straighter when we keep moving.

  While movement goals are different for everyone, we could all benefit from a teammate to help us achieve our desired result. 

  Whether pain, immobility, weakness, or fear is your limitation, Inertia believes that with education, individualized care, and commitment to the plan we can work together to successfully achieve a lasting benefit for you.  

  Let Inertia Physio be your teammate in movement for life!


Our Staff


Bess Mathisen, DPT

Founder/ Director 

A Maryland native, Bess fell in love with this region through service with the Appalachian Service Project.

After receiving her Doctorate in Physical Therapy from Saint Louis University, Bess relocated to Norton, Virginia in 2012.  She treated a wide variety of orthopedic and neurological diagnoses in the outpatient setting before extensive training with the Herman & Wallace Pelvic Rehabilitation Institute.  In 2018, Bess started the first pelvic health rehab program in the region. 

Through three of her own pregnancies and postpartum recoveries, Bess developed a passion for pelvic floor therapy and promoting awareness and education around pelvic health concerns across the lifespan.  

In 2021, Bess founded Inertia Physio and Pelvic Health with the goal of treating the whole patient and not just the diagnosis they come in with, while utilizing the most current tools and techniques available.  An active member of the Virginia Chapter of the APTA and Academy of Pelvic Health, Bess works to stay up to date with the most recent research and evidence in the field. 

Beyond her therapy practice, Bess is a committed Catholic, competitive runner, cyclist, and rock climber. But most importantly she does her best to be a loving wife, mother, and friend.  


Kellie Olinger

Front Desk Coordinator

Kellie is the smiling face at the front desk and friendly voice behind the phone when you call Inertia Physio and Pelvic Health.  A southwest Virginia native, Kellie loves walking the Virginia Creeper trail especially in the fall when the area is full of beautiful colored trees.   Kellie is excited to make a difference at Inertia Physio because she ended up in physical therapy back in high school when she pitched almost every game of fastpitch softball.  She remembers how much physical therapy helped her to continue playing the sport she loved the most and she is eager to see people have the same results.  A fun fact about Kellie is that she is an animal lover and has two dogs, Snoop and Lala, and a cat Sassy.