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Forest Gate Therapy News

Understanding Therapeutic Modalities

12/9/2022

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​Series 2 - Therapeutic Ultrasound

What Is Ultrasound?
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Ultrasound is defined as inaudible acoustic vibrations that may produce either thermal or nonthermal physiological effects. When sound scatters and absorbs as it penetrates the tissue, its energy is decreased.
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Equipment
The main piece of equipment for delivering therapeutic ultrasound is a high-frequency generator, which provides an electrical current through a coaxial cable to a transducer contained within an applicator. The crystals in the head of the applicator expand and contract producing oscillations at the same frequency as sound waves.
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​Indications - Thermal Effects
  • decreases muscle spasms
  • decreases pain perception
  • increases blood flow
  • increases metabolic rate
  • increases collagen elasticity
  • decreases joint stiffness
  • increases capillary permeability
  • increases edema
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​Indications - Non-Thermal Effects.
  • Cavitation: formation of gas bubbles that expand and compress resulting in an increased flow of fluid around these vibrating bubbles
  • Microstreaming: unidirectional movement of fluids along the boundaries of a cell membrane, altering the cell membrane structure thereby accelerating the healing process.
  • These effects can
    • alert membrane properties
    • alter cellular proliferation
    • produces increases in proteins associated with inflammation
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Application
Acute injuries require more frequent treatments over a shorter period of time
Chronic conditions require fewer treatments over a longer period of time
Ultrasound should begin as soon as possible after injury to maximize effects on the healing process.
Acute conditions may require treatment once daily for 6-8 days.
Chronic conditions can be used on alternating days for 10-12 treatments.

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References
Arnheim’s Principles of Athletic Training - A Competency Based Approach, William E. Prentice, 12 Edition, 2006, pg 412-415

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​We offer ultrasound. Book an Athletic Therapy appointment today to determine if ultrasound should be included in your therapeutic treatment.
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    Author

    Rozalind Sorensen 
    Certified Athletic Therapist 
    Registered Massage Therapist

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