Ultrasound Duration Effects on Knee Osteoarthritis Pain and Function

This clinical trial investigates the effects of different ultrasound therapy durations on pain relief and physical function improvement in patients with knee osteoarthritis. Sixty sedentary individuals aged 18 to 85 years diagnosed with knee osteoarthritis will be enrolled and randomly assigned to three groups receiving ultrasound treatment for 5, 10, or 15 minutes, respectively, alongside conventional therapy (such as hot packs, TENS, etc.).

Ultrasound therapy will be applied by a qualified physiotherapist at 1 W/cm² intensity and 1 MHz frequency in pulsed mode, for four weeks. Evaluations will be conducted at baseline and after treatment completion, using the Visual Analog Scale (VAS) for pain assessment, WOMAC Osteoarthritis Index for physical function, and a 2-minute walk test to measure walking performance.

This study aims to provide scientific evidence on the optimal ultrasound treatment duration for knee osteoarthritis, contributing to improved rehabilitation protocols. The findings will be prepared for publication in an international peer-reviewed journal.

Inclusion criteria

Individuals aged between 18 and 85 years Diagnosed with knee osteoarthritis Recommended for ultrasound therapy as part of routine physical therapy Willing to participate voluntarily and provide written informed consent

Exclusion criteria

History of acute knee trauma Individuals with contraindications to ultrasound therapy