Chapter 12: Therapeutic Physical Modalities

Comprehensive vocabulary flashcards covering the thermal, ultrasonic, and electrical therapeutic modalities presented in Chapter 12.

Modalities

Treatment methods for injuries, including heating, cooling, and mechanical or electrical applications.

Thermal Modalities

Treatments that use thermal agents—specifically cold and heat applications—to create a physiological, therapeutic effect on the body.

Cryotherapy

The therapeutic use of cooling agents to manage pain and edema, and to decrease muscle guarding and spasms.

Ice Massage

A localized cryotherapy technique in which ice is rubbed briskly over an injured area, typically for about $5\text{ minutes}$.

Cold-Water Compression

A technique in which cold water and pressure are simultaneously applied to an injured area using an internal water bladder sleeve, typically for $15\text{ to }20\text{ minutes}$.

Ice Bath

A therapeutic immersion of an affected body part into a bucket of cold water maintained at a temperature between $55^\circ\text{F}\text{ and }64^\circ\text{F}$, allowing uniform cooling and active movement exercises.

Hydrocollator

A heated, stainless-steel container filled with hot water in the range of $60^\circ\text{C}\text{ to }90^\circ\text{C}$ used to heat moist packs for superficial heat therapy.

Hydrocollator Packs

Moist hot packs stored in hot water used for superficial heating, applied inside insulating coverings to the affected body area for $10\text{ to }20\text{ minutes}$.

Hydrotherapy

A form of superficial heating that uses agitated, heated water within a specially designed piece of equipment.

Whirlpool

A stainless-steel or fiberglass tub equipped with an attached turbine that mixes air with water to create pressurized turbulence for therapeutic treatment.

Contrast Therapy

A treatment modality consisting of the alternating immersion of an extremity between hot water baths ($38^\circ\text{C}--44^\circ\text{C}$) and cold water baths ($10^\circ\text{C}--18^\circ\text{C}$) for specified time periods.

Ultrasound (US)

A therapeutic deep-heating modality (also termed ultrasonic diathermy) that uses high-frequency soundwaves absorbed by tissues high in protein to affect structures up to $5\text{ cm}$ deep.

Continuous Ultrasound

A continuous, uninterrupted delivery of ultrasound energy measured at a $100\%$ duty cycle that transforms into deep heat within targeted tissue.

Pulsed Ultrasound

A mode where the ultrasound beam is delivered intermittently (such as a $20\%$ duty cycle) to produce nonthermal effects that facilitate tissue repair.

Duty Cycle

In pulsed-mode ultrasound, the fraction of time during one pulse when the ultrasound beam is flowing, expressed as a percentage.

Hertz (Hz)

The standard unit of frequency, equivalent to one cycle or soundwave per second.

Transducer (Sound Head)

A metal-shielded applicator housing a vibrating synthetic crystal that generates an ultrasonic beam for ultrasound therapy.

Coupling Agent

A specialized gel or cream applied to the skin before an ultrasound treatment to provide an essential conductive medium through which sonic waves can penetrate the body.

Electrical Stimulation (e-stim)

The therapeutic use of electrical impulses to stimulate motor nerves, eliciting muscle contractions and muscle facilitation; also termed neuromuscular stimulation (NMS).

Transcutaneous Electrical Nerve Stimulation (TENS)

The use of electrical impulses delivered through the skin to reduce pain by stimulating sensory and pain-signaling nerves.

Neuromuscular Electrical Stimulation (NMES)

The application of electric current across peripheral nerves to elicit either a sensory or a motor (movement) response.

Functional Electrical Stimulation (FES)

The targeted application of electrical stimulation (e-stim) specifically designed to restore or improve functional motor activities.