Microtherapy is absorbed more readily by which tissue type?

• A. Superficial fatty tissues
• B. Deep muscles
• C. Bone
• D. Cartilage

Answer: (A)

The main idea is that energy from surface-based therapies is absorbed most by the tissue that lies directly under the skin. When a microtherapy modality is applied to the surface, the first tissue layer the energy encounters tends to take up a large share of it. Superficial fat sits right under the skin and is the closest tissue to the source, so it tends to absorb energy more readily than deeper structures. Deeper tissues like deep muscles, bone, and cartilage are further away and are more influenced by how quickly energy is attenuated or dissipated as it passes through the overlying layers. Additionally, fat has relatively lower blood flow compared with muscle, which can slow dissipation of energy and contribute to more energy deposition in that superficial layer. So, for surface-directed microtherapy, superficial fatty tissue is the most likely to absorb energy.