Research Article

Effects of a Newly Developed Therapeutic Deep Heating Device Using High Frequency in Patients with Shoulder Pain and Disability: A Pilot Study

Figure 4

Experimental design of prospective randomized controlled trial assessing the effectiveness of deep heat therapy ( patients). V1, visit 1, pretreatment, within 28 days after screening the patients; V2, visit 2, posttreatment period within 2 days after completing all treatment sessions; V3, visit 3, posttreatment period in 28 ± 2 days after completing all treatment sessions.