Instrument Assisted Soft Tissue Mobilization or IASTM has been used for decades by professionals for treatment of soft tissue restriction. IASTM tools use an edge to break up adhesions and stimulate the body's natural healing process of remodeling and repair. A precise edge is necessary to cut through fibrotic tissue while preserving the healthy tissue. Edge tools also increase blood flow to the area. The ancient and popular art of Gua Sha uses a more rounded edge, but has many similar health benefits.

Edge tools are great for tendonitis, myofascial restriction, chronic injury, and scar tissue. With an IASTM tool, especially an ergonomic tool like The Wave Tool, you can easily feel tissue restrictions and adhesions. The tools are used like a snow shovel and pushed through the tissue at a 45 degree angle, which cuts through the misaligned poor quality adhesions, while preserving the healthy (properly aligned) tissue.