Which method includes using an extremity tank and provides convection and conduction?

The method that effectively includes using an extremity tank and provides both convection and conduction is whirlpool baths. In whirlpool therapy, water is circulated in a tank, promoting convection, which is the transfer of heat through the movement of fluids. When a patient immerses an extremity in warm water, the heat is transferred from the water to the skin, which utilizes conduction. This dual mechanism enhances the therapeutic effects of the treatment, aiding in pain relief, muscle relaxation, and improved circulation.

The other options do not combine both convection and conduction in the same manner or do not involve an extremity tank. Ice massage focuses solely on conduction through direct contact of ice to skin, cryokinetics also utilizes specific techniques for colder therapy without water immersion, and paraffin immersion primarily employs conduction without the associated convection effects found in whirlpool baths.