| Effect of coupling medium temperature on rate of intramuscular temperature rise using continuous ultrasound. | |
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MedLine Citation:
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PMID: 16558655 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: We determined the effects of coupling medium temperature on the rate of intramuscular temperature rise (RTR) during continuous ultrasound. DESIGN AND SETTING: Ultrasound was applied in a continuous mode at a frequency of 1 MHz and intensity of 1.5 W/cm(2). Each subject received 3 treatments, using water-based coupling gel at temperatures of 18 degrees C, 25 degrees C, and 39 degrees C. All treatments were performed in an athletic training room under controlled environmental conditions. SUBJECTS: Eighteen healthy male subjects (mean age = 23.6 +/- 3.5 years; height = 177.8 +/- 6.9 cm; weight = 76.6 +/- 8.2 kg; calf size = 37.6 +/- 2.4 cm) participated in this study. MEASUREMENTS: A thermistor was inserted into the left medial triceps surae at a depth of 5 cm, and baseline tissue temperatures were recorded before treatment. Intramuscular temperature was recorded every 30 seconds until the temperature rose 4 degrees C above baseline or until discomfort was felt. RTR was calculated by dividing the absolute temperature change by treatment time. RESULTS: A 1-way, repeated-measures analysis of variance revealed a significant difference in RTR among gel temperatures, RTR was significantly faster using the 25 degrees C gel compared with the 18 degrees C and 39 degrees C gels. There was no difference between the 18 degrees C and 39 degrees C gel treatments. CONCLUSIONS: These results suggest that the use of a cooled or heated gel may be counterproductive when maximal thermal effects are desired within a given time frame. |
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Authors:
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C A Oshikoya; S J Shultz; D Mistry; D H Perrin; B L Arnold; B M Gansneder |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of athletic training Volume: 35 ISSN: 1938-162X ISO Abbreviation: J Athl Train Publication Date: 2000 Oct |
Date Detail:
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Created Date: 2010-06-29 Completed Date: 2010-07-02 Revised Date: 2010-09-14 |
Medline Journal Info:
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Nlm Unique ID: 9301647 Medline TA: J Athl Train Country: United States |
Other Details:
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Languages: eng Pagination: 417-21 Citation Subset: - |
Affiliation:
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Denver Broncos Football Club, Englewood, CO. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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