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Journal of the Korean Academy of Rehabilitation Medicine 1990;14(1):18.
Temperature Increase in Infraspinous Fossa of the Scapula by Ultrasound
Jin Ho Kim, M.D. , Chyung-Ki Lee, M.D.*
Department of Rehabilitation Medicine, College of Medicine, Seoul National University, *Department of Rehabilitation Medicine, College of Medicine, Kyeongsang National University
견관절 극하와 부위에서 초음파에 의한 조직온도 상승효과
김진호, 이청기*
서울대학교 의과대학 재활의학교실, *경상대학교 의과대학 재활의학교실
Abstract

Ultrasound is primarily useful as a deep as a deep heating agent at present because it produces a rise of tissue temperature in selective areas requiring heat for therapeutic purposes. There are many factors influencing the temperature distribution in areas exposed to ultrasound but standardized criteria are lacking for sites in human beings, especially in scapular area.

Sixteen patients suffering from myofascial pain in shoulder area recieved ultrasound at the intensities of 0, 0.5, 1.0, 1.5, 2.0 W/cm2 for 10 minutes in infraspinous fossa. tissue temperatures were recorded near the interface between scapular bone and infraspinatus muscle (depth: 3-5 cm) using clinical thermomerer.
Results
are followings.

1) Ultrasound at an intensity of 1, 0.5(0) W/cm2 caused the decrement of tissue temperature at a rate of 0.01oC/mim for 10 minutes (p<0.05)

2) Tissue temperaturerose at a rate of 0.05, 0.09, 0.17, 0.26oC/min. for 10 minutes with 0.5, 1.0, 1.5, 2.0 W/cm2 respectively (p<0.05).

3) All patients that received the ultrasound of 2.0 W/cm2 reported warm sense but the beginning points of warm sense are of wide range, ranging from 37.4oC to 40.2oC (average 39.0oC). Patients generally felt warmth when they received 1.5 W/cm2 intensity, at the speed of 3-4 sec/circle.

4) Minimal conditions of ultrasound therapy in infarspinous muscle area should preferably be 10 minutes in duration, 1.5-2.0 W/cm2 in intensity, in moderately slow stroking method.

Key Words: Temperature, Infraspinatus, Ultrasound
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