Final answer:
Ultrasound diathermy aims to increase ROM, reduce muscle spasm, enhance collagen extensibility, modulate pain, improve blood flow, and boost metabolism by using heat generated from high-intensity ultrasound.
Step-by-step explanation:
When using ultrasound diathermy with the intent of creating a moderate 2-degree tissue temperature increase, the treatment goals are likely to include a. increase Range of Motion (ROM), b. reduce muscle spasm, c. increase collagen extensibility, e. pain modulation, f. increase blood flow, and g. increase metabolism.
These goals are achieved because the thermal energy from the ultrasound increases tissue temperature, leading to various therapeutic effects. For instance, by warming up the tissues, there's an increase in blood flow which can help to reduce muscle spasm and pain, similar to the effect of a proper warm-up before exercise.
Additionally, the heat helps to increase collagen extensibility, which can contribute to an increased range of motion. Care must be taken to avoid overheating, which could lead to damage such as bone burns or other tissue problems.