Soft-tissue mobilization is a manual therapy that relaxes tense muscles, reduces scar tissue and stretch or lengthen fascia. This is done via a number of techniques, including applying gentle pressure and stretching the affected tissue.

The goal of soft tissue mobilization is to decompose inelastic or fibrous muscle tissue (called 'myofascial adhesions') such as tissue from a back injury, move tissue fluids and relax muscle tension. This procedure is commonly applied to the musculature surrounding the spine and consists of rhythmic stretching and deep pressure movements. The physiotherapist will localize the area of greatest tissue restriction through a layer-by-layer assessment. Once identified, these restrictions can be mobilized with a wider variety of techniques.