Nathaly Gaudreault is a physiotherapist and full professor at the University of Sherbrooke’s Rehabilitation School. She is director of the Physius laboratory affiliated with the CHUS Research Center. Her research program aims to better understand the pathophysiology of pain and myofascial stiffness (contracture, painful myofascial syndrome, trigger points, fibrosis) and to validate the mechanisms of different forms of manual therapy for these conditions. These therapies have in common to target areas of abnormal stiffness in the muscles and / or fasciae and provide beneficial relaxation after treatment. However, the presence of these stiffness zones and their resolution after treatment have not yet been clearly demonstrated. By combining their expertise in tissue biomechanics and imaging, their team is working to characterize these areas using different technologies such as myometry and innovative ultrasound techniques that measure the viscoelasticity, cellularity and echostructure of these tissues.