Pes PlanusNCT06987422
Plantar Fascia and Achilles Tendon Thickness and Flexibility in Pes Planus
An observational study of Pes Planus, run by Hacettepe University at 1 site in Turkey (Türkiye).
Trial summary
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… Read more about this study
- Who is it for?
- Ages 18 to 45 yearsHealthy volunteers can take part
- Conditions the study is for
- Pes Planus
- How many people
- 93 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 25 May 2025to 30 Aug 2025
- How long will I take part?
- 1 Day
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 45 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: Individuals with Pes Planus
Who may be able to join
- Age 18 to 45
- Mini Mental State Examination (MMSE) score of 24 to 30
- Diagnosed with Pes Planus by a physician
Who cannot join
- 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.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Investigation of Plantar Fascia and Achilles Tendon Thickness and Flexibility in Individuals With 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.
- Conditions
- Pes Planus
- Medical subject headings
- Flatfoot
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Pes Planus | Individuals with pes planus | |
| Control | Healthy individuals with similar demographic characteristics |
What is being measured
The primary outcome is the main question the study is designed to answer.
Foot Posture Index
In this study, the Foot Posture Index will be used to evaluate the foot postures of the participants.
Measured: Baseline
Navicular Drop Test
The Navicular Drop Test will be administered to measure the amount of drop in the participants' navicular bones.
Measured: Baseline
Ultrasonographic Evaluation
Participants' Achilles tendon and plantar fascia thicknesses will be evaluated using a high-resolution ultrasound device.
Measured: Baseline
Myotonometer
Participants' plantar fascia and Achilles tendon flexibility will be evaluated using a myotonometer device.
Measured: Baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 May 2025
- Study start25 May 2025
- Primary completion20 Aug 2025
- Study completion30 Aug 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Pes PlanusStudies of the same condition, open and under way.
- More trials run by Hacettepe UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 93 participants (actual)
- Target duration
- 1 Day
Sponsor and investigators
- Lead sponsor
- Hacettepe University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Busra Seckinogullari Korkusuz, Ankara University
- Investigators
- Süleyman Korkusuz, PhD, Study chair, Atılım UniversityBüşra Seçkinoğulları Korkusuz, PhD, Principal investigator, Ankara University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06987422
- Sponsor's protocol ID
- 604.01.02-421
- Status last verified
- Jul 2025
- First submitted
- 16 May 2025
- Last updated
- 24 Nov 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Angin S, Crofts G, Mickle KJ, Nester CJ. Ultrasound evaluation of foot muscles and plantar fascia in pes planus. Gait Posture. 2014;40(1):48-52. doi: 10.1016/j.gaitpost.2014.02.008. Epub 2014 Feb 26.
PubMed 24630465Tas S, Aktas A, Dikici TF, Cekok FK. Achilles Tendon, Patellar Tendon, and Femoral Cartilage Thickness in Control vs Asymptomatic Flatfoot Young Adults. Foot Ankle Int. 2023 Jan;44(1):81-88. doi: 10.1177/10711007221136137. Epub 2022 Nov 22.
PubMed 36412188
Study at a glance
From the registry record, last updated by the sponsor on 24 Nov 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Investigation of Plantar Fascia and Achilles Tendon Thickness and Flexibility in Individuals With Pes Planus
- ClinicalTrials.gov ID
- NCT06987422
- Acronym / sponsor ID
- 604.01.02-421
- Conditions
- Pes Planus
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 93 participants (actual)
- Lead sponsor
- Hacettepe UniversityUniversity, hospital or other
- Study start
- 25 May 2025 (actual)
- Primary completion
- 20 Aug 2025 (actual)
- Study completion
- 30 Aug 2025 (actual)
- First posted
- 23 May 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Target follow-up
- 1 Day
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Pes Planus | – | –Individuals with pes planus |
| Control | – | –Healthy individuals with similar demographic characteristics |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- Individuals with Pes Planus
Key inclusion criteria (3 listed)
- Age 18 to 45
- Mini Mental State Examination (MMSE) score of 24 to 30
- Diagnosed with Pes Planus by a physician
Key exclusion criteria (4 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
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.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Nov 2025.
- Results publication: PubMed 24630465Angin S, Crofts G, Mickle KJ, Nester CJ. Ultrasound evaluation of foot muscles and plantar fascia in pes planus. Gait Posture. 2014;40(1):48-52. doi: 10.1016/j.gaitpost.2014.02.008. Epub 2014 Feb 26.
- Results publication: PubMed 36412188Tas S, Aktas A, Dikici TF, Cekok FK. Achilles Tendon, Patellar Tendon, and Femoral Cartilage Thickness in Control vs Asymptomatic Flatfoot Young Adults. Foot Ankle Int. 2023 Jan;44(1):81-88. doi: 10.1177/10711007221136137. Epub 2022 Nov 22.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Süleyman Korkusuz, PhD study chair
Atılım University
Büşra Seçkinoğulları Korkusuz, PhD principal investigator
Ankara University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Pes Planus, run by Hacettepe University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 24 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Foot Posture Index (time frame: Baseline). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06987422, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Nov 2025.