Plantar Fascia and Achilles Tendon Thickness and Flexibility in Pes Planus

The aim of this study is to examine the plantar fascia and Achilles tendon thickness and flexibility in individuals with pes planus. Individuals between the ages of 18-45 who have been diagnosed with pes planus by an orthopedist and healthy individuals with similar demographic characteristics will be included in the study as a control group. Demographic information of the individuals will be recorded and clinical evaluations will be made. The foot posture of the individuals participating in the study will be evaluated with the Foot Posture Index, and the degree of flat feet will be evaluated with the Navicular Drop Test. The Achilles tendon and plantar fascia thicknesses of the individuals participating in the study will be measured with ultrasound, and the plantar fascia and Achilles tendon flexibility will be measured with a myotonometer.

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Key information

Conditions

Pes Planus Congenital Abnormalities Congenital, Hereditary, and Neonatal Diseases and Abnormalities Flatfoot Foot Deformities Foot Deformities, Acquired Foot Deformities, Congenital Limb Deformities, Congenital Lower Extremity Deformities, Congenital Musculoskeletal Abnormalities Musculoskeletal Diseases Talipes

Age range

18 year–45 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Atılım University

Ankara, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Age 18 to 45
Mini Mental State Examination (MMSE) score of 24 to 30
Diagnosed with Pes Planus by a physician

Exclusion criteria

Inability to communicate verbally
Use of walking aids
Any history of surgery involving the lower extremities
People with severe visual impairment, neurological disorders and/or congestive heart failure.

Treatment and study plan

Primary outcomes

Foot Posture Index

Time frame: Baseline

In this study, the Foot Posture Index will be used to evaluate the foot postures of the participants.
Navicular Drop Test

Time frame: Baseline

The Navicular Drop Test will be administered to measure the amount of drop in the participants' navicular bones.
Ultrasonographic Evaluation

Time frame: Baseline

Participants' Achilles tendon and plantar fascia thicknesses will be evaluated using a high-resolution ultrasound device.
Myotonometer

Time frame: Baseline

Participants' plantar fascia and Achilles tendon flexibility will be evaluated using a myotonometer device.

Sponsors and collaborators

Lead sponsor

Hacettepe University

Other

Registry information

Official study title

Investigation of Plantar Fascia and Achilles Tendon Thickness and Flexibility in Individuals With Pes Planus

Important dates

Study start: 2025
Primary completion: 2025
Study completion: 2025
First posted: May 23, 2025
Registry last updated: Nov 24, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed