Which statement about hydrotherapy is true?

Which statement about hydrotherapy is true?

• A. It uses a deep tissue heating with ultrasound.
• B. It requires air splints and negative pressure.
• C. It is a superficial modality performed in a tank with circulating water, typically 99-104 degrees, and patients may exercise for up to 20 minutes.
• D. It is a dry heat modality applied with a heat lamp.

Answer: (C)

Hydrotherapy is an aquatic therapy modality where the body is immersed in warm, circulating water. The chosen temperature range around 99–104°F is warm enough to produce superficial heating, which helps increase tissue perfusion and flexibility without penetrating deeply. Being in a tank with circulating water provides buoyancy, which reduces body weight and joint stress, making it easier to perform exercises and work through range of motion. The water’s hydrostatic pressure also assists with edema management and provides sensory input that can aid proprioception during activity. A typical session lasts up to about 20 minutes, depending on tolerance, which balances therapeutic heating with patient safety. The other statements don’t fit hydrotherapy because deep tissue heating like ultrasound targets deeper tissues, not a warm water immersion; air splints with negative pressure describe a different modality; and a dry heat source such as a heat lamp delivers warmth without water immersion or the buoyancy and hydrostatic effects that define hydrotherapy.

Hydrotherapy is an aquatic therapy modality where the body is immersed in warm, circulating water. The chosen temperature range around 99–104°F is warm enough to produce superficial heating, which helps increase tissue perfusion and flexibility without penetrating deeply. Being in a tank with circulating water provides buoyancy, which reduces body weight and joint stress, making it easier to perform exercises and work through range of motion. The water’s hydrostatic pressure also assists with edema management and provides sensory input that can aid proprioception during activity. A typical session lasts up to about 20 minutes, depending on tolerance, which balances therapeutic heating with patient safety.

The other statements don’t fit hydrotherapy because deep tissue heating like ultrasound targets deeper tissues, not a warm water immersion; air splints with negative pressure describe a different modality; and a dry heat source such as a heat lamp delivers warmth without water immersion or the buoyancy and hydrostatic effects that define hydrotherapy.