High-Intensity Laser Therapy vs. Ultrasound Therapy Essay

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High-Intensity Laser Therapy vs. Ultrasound Therapy

Research Question The research question for this article is whether high-intensity laser therapy or ultrasound (US) therapy is more beneficial for short-term treatment of subacromial impingement syndrome (SAIS). There has been little evidence found on the effects of physical therapy treatment, with some studies showing effectiveness of US therapy and others showing limited effectiveness in this type of condition.

Review of Literature According to Cameron, laser therapy increases collagen production and decreases inflammation, while hindering bacterial growth. It also promotes vasodilation so that blood and other nutrients are able to flow into the area. One indication for
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When performing US on superficial tissues the intensity is 0.5-1 W/cm2 and on deep tissues it is 1.5-2.0 W/cm2.2

Hypothesis and Null Hypothesis The hypothesis of this study is that both US and high-intensity laser therapy treatment show effectiveness in the treatment of SAIS. The null hypothesis is that neither treatment groups will show effectiveness in treating SAIS.

Variables The independent variable of this study is the type of treatment: US or high-intensity laser therapy. The dependent variables are the outcomes of the visual analog scale (VAS), Constant-Murley Scale (CMS), and Simple Shoulder Test (SST) following treatment.1 The purpose of this study was to determine the effectiveness of these two therapy treatments. The dependent variables are all different scales that evaluated how the patient felt. Each patient completed all three scales before treatment as a baseline, and then again following treatment. The results of these different scales showed the outcome measures of both treatments so that the researchers were able to compare the effectiveness.
The methodology of this study consisted of 70 patients with subacromial impingement syndrome (SAIS). Each patient had also been experiencing pain for at least the past four weeks and their diagnosis of SAIS was confirmed with an MRI.1 The patients then signed a consent form and agreed not to receive any other forms of treatment or therapy for their shoulder during this
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