A manually-operated quantification soft tissue mobilization (QSTM) device includes a pressure applicator and a sensor member. The pressure applicator is configured to enable a user to dynamically apply a stroking mechanical force as the pressure applicator is moved over an area treatment areas of a patient's soft tissue. The sensor member including an accelerometer and a gyrometer is configured to determine various parameters of the dynamically applied stroking mechanical force in three dimensions as the pressure applicator is moved over the treatment areas of the patient's soft tissue. These parameters include a force magnitude in three dimensions, an angle in multiple axes, a stroke position, a stroke frequency, a sensed vibration magnitude at dominant spectral frequencies, and/or a rate of the stroking mechanical force dynamically applied to the soft tissue.