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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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INTRAMUSCULAR TEMPERATURE DIFFERENCES BETWEEN THE MID-POINT AND PERIPHERAL EFFECTIVE RADIATING AREA WITH ULTRASOUND |
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Michale G. Miller  ,
Janae R. Longoria, Christopher C. Cheatham, Robert J. Baker and Timothy
J. Michael |
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Department of HPER, Western Michigan University, Kalamazoo, MI, USA |
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© Journal of Sports Science and Medicine (2008) 7, 286 - 291 Search Google Scholar for Citing Articles |
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| ABSTRACT | |||
| The purpose of the study was to determine whether uniform intramuscular
heating is achieved throughout a treatment area 2 times the transducer head
at both 1 and 3 MHz. Seven male and three female subjects (Age: 23.6 ± 1.0
yrs, Weight: 83.8 ± 23.2 kg, Site Skinfold: 13.9 ± 7.3 mm) underwent two
ultrasound treatments (1 and 3 MHz) in the triceps surae muscle group. Thermocouples
were inserted at the midpoint and periphery of the treatment area. Ten minute
baseline temperatures were recorded followed by a ten minute ultrasound
treatment. Two (site) X 10 (time) repeated measures ANOVAs were separately
used to determine significance for 1 and 3 MHz treatments. Post-hoc testing
was performed using the Bonferroni adjustment. A significant site-by-time
interaction was observed for both the 1 and 3 MHz treatments. From baseline
to the end of the treatment, temperature increased approximately 2.62°C
and 1.58°C for the midpoint and periphery of the 1 MHz treatment and 5.88°C
and 3.64°C for the 3 MHz treatment. The differences in temperature suggest
that uniform heating does not occur throughout the treatment area.
Key words: Tissue, thermal effects, acoustical. |
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