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- Title
The effects of superficial heating before 1-MHz ultrasound on tissue temperature [corrected] [published erratum appears in J SPORT REHABIL 2003 Aug;12(3):ii].
- Authors
Holcomb WR
- Abstract
Context: Ultrasound significantly raises tissue temperature, but the time of temperature elevation is short. Objective: To assess the effectiveness of superficial preheating on temperature elevation and decline when using ultrasound. Design: Within-subjects design to test the independent variable, treatment condition; repeated-measures ANOVAs to analyze the dependent variables, temperature elevation and decline. Setting: Athletic training laboratory. Intervention: Temperature at a depth of 3.75 cm was measured during ultrasound after superficial heating and with ultrasound alone. Subjects: 10 healthy men. Main Outcome Measure: Temperature was recorded every 30 s during 15 min of ultrasound and for 15 min afterward. Results: Temperature elevation with ultrasound was significantly greater with preheating (4.0 +/- 0.21 degrees C) than with ultrasound alone (3.0 +/- 0.22 degrees C). Temperature decline was not significantly different between preheating and ultrasound alone. Conclusions: Superficial preheating significantly increases temperature elevation but has no effect on temperature decline during a 15-min cooling period.
- Publication
Journal of Sport Rehabilitation, 2003, Vol 12, Issue 2, p95
- ISSN
1056-6716
- Publication type
Journal Article
- DOI
10.1123/jsr.12.2.95