Fascial Gun, also called deep myofascial impact instrument, is a soft tissue massage tool that relaxes the soft tissues of the body through high-frequency impact. The moving parts of the Fascial Gun mainly include motors, transmission components and sliding components, which form a A slider-crank mechanism. The transmission assembly converts the rotational motion of the motor into the reciprocating linear motion of the piston rod in the sliding sleeve assembly, thereby using the piston rod to drive the massage head for back and forth impact massage, so that the body can relax after labor or physical exercise [2]. The functions of the fascia gun include: relieving fatigue and pain, relaxing fascia and muscles, relaxing skeletal muscles, and improving fasciitis.