In induction methods of diathermy, how is energy delivered?

In induction methods of diathermy, how is energy delivered?

• A. By placing the body part into an electromagnetic field
• B. By injecting currents directly into tissue
• C. By applying direct contact heat
• D. By laser irradiation

Answer: (A)

In induction diathermy, energy is delivered by placing the body part into an electromagnetic field generated by an induction coil. The alternating magnetic field penetrates the tissue and induces electrical currents (eddy currents) within it. The tissue’s resistance converts this electrical energy into heat, producing deeper, more uniform heating than surface methods. This is different from injecting currents directly into tissue (that’s electrotherapy), applying heat by direct contact (conduction), or using laser light (optical energy).

In induction diathermy, energy is delivered by placing the body part into an electromagnetic field generated by an induction coil. The alternating magnetic field penetrates the tissue and induces electrical currents (eddy currents) within it. The tissue’s resistance converts this electrical energy into heat, producing deeper, more uniform heating than surface methods. This is different from injecting currents directly into tissue (that’s electrotherapy), applying heat by direct contact (conduction), or using laser light (optical energy).