Source:http://linkedlifedata.com/resource/pubmed/id/16558387
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
2
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| pubmed:dateCreated |
2010-6-29
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| pubmed:abstractText |
Thermal ultrasound can be effective in increasing extensibility of collagen, thus aiding joint mobilization and stretching. In 1995, we reported on the rate of temperature decay following 3-MHz ultrasound in subcutaneous tissues. We repeated that study at 1-MHz frequency to see if the stretching window is different for deep muscle. Twenty subjects had two 23-gauge thermistors inserted 2.5 cm and 5 cm deep into their triceps surae muscle. We administered 1-MHz continuous ultrasound at 1.5 W/cm(2) until the tissue temperature increased 4 degrees C (vigorous heating). Immediately following the treatment, we recorded the rate at which the temperature dropped at 30second intervals. We ran a stepwise nonlinear regression analysis to predict temperature decay as a function of time following ultrasound treatment. There was a significant nonlinear relationship between time and temperature decay. At 2.5 cm, the average time for the temperature to drop each degree was: 1 degrees C = 2:34; 2 degrees C = 6:35; 3 degrees C = 12:10: and 4 degrees C = 21:14. At 5 cm, the average time for the temperature to drop each degree was: 1 degrees C = 2:31, 2 degrees C = 6:50: 3 degrees C = 14:32; and 4 degrees C = 27:49. Based upon prior research, thermal decay of 1-MHz ultrasound was slower than 3 MHz, and the deeper tissue cooled at a slower rate than superficial tissue following 1-MHz ultrasound. The data illustrated that the stretching window was open longer for deep-seated structures than for superficial ones.
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| pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-1267581,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-13149318,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-13791568,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-14361715,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-16558352,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-349580,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-3575424,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-3918652,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-4952531,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-5116032,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-5448112,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-5475720,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-5940622,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-6218793,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16558387-8535471
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| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
Apr
|
| pubmed:issn |
1062-6050
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:volume |
31
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
139-43
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| pubmed:dateRevised |
2010-9-15
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| pubmed:year |
1996
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| pubmed:articleTitle |
The Stretching Window Part Two: Rate of Thermal Decay in Deep Muscle Following 1-MHz Ultrasound.
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| pubmed:publicationType |
Journal Article
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