| Term | Definition |
|---|
| tissue alterations / increase | metabolic rate, nreve conduction velocity, circulation, soft tissue extensibility |
| tissue alterationa / decrease | pain, muscle spasm |
| thermal US compared to superficial heat (hot pack) | reaches deeper and heats smaller area |
| US heating rate porportional to | absorbtion coeffecient at the applied frequency |
| tissue with higher absorbtion coeffecient | greater temp increase to a smaller area of more superficial tissues |
| to increase total heat transferred | increase duration or intensity of treatment |
| frequency and intensity 1MHz | heats tissue up to 5cm deep, applied at higher intensity due to lower heat production |
| frequency and intensity 3MHz | heats tissue 1-2 cm deep, more superficial heat transfer, applied 3 - 4 times lowed than deep US |
| duration longer treatment time | transfer more heat |
Combine with other sets
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