About this trial
This randomized controlled study will examine the acute effects of a medial arch support and a prefabricated insole on lower-limb muscle mechanical properties and pain in young adults with pes planus. Ninety participants will be allocated in a 1:1:1 ratio to a medial arch support group, an insole group, or a control group. Muscle mechanical and viscoelastic properties will be assessed with MyotonPRO, and pain will be assessed with a visual analog scale.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Aged 18-30 years
Diagnosed with unilateral or bilateral pes planus
Willing to participate voluntarily in the study
Disqualifiers
History of lower-extremity injury or surgery within the past 6 months
Diagnosis of a rheumatologic or neurological condition that may affect foot joint alignment
Skin lesions or damage that may prevent the measurements from being performed
Current use of an orthosis, such as an insole or wedge, to support pes planus
Trial design
Parallel
Treatments tested in this trial
Insole
DeviceAn insole will be placed inside the participant's shoe and used during a 30-minute treadmill walking session at a self-selected speed.
Medial Arch Support
DeviceA medial arch support will be placed inside the participant's shoe and used during a 30-minute treadmill walking session at a self-selected speed.
Treatment groups
Trial outcomes
Primary outcomes
Change in Muscle Dynamic Stiffness
Muscle dynamic stiffness will be measured using the MyotonPRO device and reported in newtons per meter (N/m). Higher values indicate greater muscle stiffness.
Change in Muscle Oscillation Frequency
Muscle oscillation frequency will be measured using the MyotonPRO device and reported in hertz (Hz). Higher values indicate greater muscle tone.
Secondary outcomes
Change in Pain Intensity
Pain intensity will be assessed using a 10-cm Visual Analog Scale (VAS), ranging from 0 (no pain) to 10 (worst imaginable pain). Higher scores indicate greater pain intensity.
Locations
Sponsors and contacts
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