EHS 240 Lecture Notes - Lecture 14: Heat Therapy, Light Therapy, Muscle Spindle

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18 Jun 2018

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Energy transfer

Conduction: direct contact

Convection: indirectly through another medium

Radition: transfer though space from one object to another

Conversion: though other forms of energy

Classifications

Electromagnetic: energy absorbed by the body.

Ex. Cryotherapy ( ice therapy)

Thermotherapy ( heat therapy)

Electrical stimulating currents and light therapy

Acoustic: energy in the form of vibration is absorbed though dense tissue to produce

heat and alter cell permeability. Ultrasound.

Mechanical: modalities are used to stretch, compress, manipulate soft tissue and/or

joint surfaces.

Ex. Traction, intermittent compression, and massage

Analgesic decrease muscle tone

Decrease muscle spindle depolarization increase axon reflex activity

Anesthetic analgesic

Ice vs heat

Ice Heat

Vascoconstriction vasodilation

Decreased blood flow increased blood flow

Decrease local metabolism increase local temperature

Decrease leuko and phagocytes increase leuko and phagocytes

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