Which category includes electrical modalities?

• A. Thermal Modalities
• B. Mechanical Modalities
• C. Electrical Modalities
• D. Manual Modalities

Answer: (C)

Electrical modalities are defined by delivering electrical energy to the body to influence nerves and muscles, pain, circulation, and healing. This category includes treatments that use current or electromagnetic energy—examples are TENS for pain relief, NMES for muscle activation, IFC for deeper pain modulation, iontophoresis to move medication through the skin, and diathermy which generates heat in tissues with electrical energy. This sets them apart from thermal modalities, which rely on heat or cold; mechanical modalities, which apply physical forces or energy like sound or traction; and manual modalities, which are hands-on techniques performed by the clinician. So, when identifying the category that includes this type of treatment, it is the electrical modalities category because the defining feature is the use of electrical energy to produce therapeutic effects.