HealthyNCT05595902
Normative Value for Navicular Drop Test in Older Adults
An observational study of Healthy, run by Istanbul Medeniyet University at 1 site in Turkey (Türkiye).
Trial summary
The aim of this study is to determine the normative values of navicular height and navicular drop in individuals over 65 years of age. The secondary aim is to investigate the effects of age, gender, and body mass index on these normative values. Read more about this study
- Who is it for?
- Ages 65 years and olderHealthy volunteers can take part
- Conditions the study is for
- Healthy
- How many people
- 100 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Apr 2023to 1 Aug 2025
- 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 65 years and older
- All sexes
- Healthy volunteers accepted
- Older adult
Study population: Healthy older adults
Who may be able to join
- Being 65 years or older
- Having a body mass index between 18.5 and 29.0 kg/m2
Who cannot join
- Having chronic diseases that affect the foot structure and connective tissue (such as diabetes mellitus, rheumatoid arthritis, gout, etc.).
- Have had foot or ankle surgery in the last 6 months
- Having orthopedic or neurological deformities (related to stroke, Parkinson's, multiple sclerosis, spinal cord injury, etc.) that will affect the foot structure and mobility.
- Dependence on standing and ambulation (except independence gained through the use of assistive devices)
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Determination of Normative Values of Navicular Height and Navicular Drop Amount in Geriatric Individuals and Investigation of the Effect of Age, Gender and Body Mass Index on Normative Values
The aim of this study is to determine the normative values of navicular height and navicular drop in individuals over 65 years of age. The secondary aim is to investigate the effects of age, gender, and body mass index on these normative values.
- Conditions
- Healthy
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 |
|---|---|---|
| Young older adults | ≥65-<75 years of age | |
| Older adults | ≥75-<90 years of age | |
| ≥90 years old | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Navicular Drop Test
The navicular height and the amount of navicular drop will be made separately for each foot. The navicular prominence is found by palpation and marked with a marker pen when the individual is in a sitting position with the hips and knees flexed to 90 degrees and the subtalar joint in neutral position (the subtalar joint is palpated and the talus is in a neutral position). The height of the navicular protrusion from the ground is measured with a rigid ruler. Then, while the person stands on both feet equally, the height of the navicular protrusion from the ground is also measured with a ruler. The difference between the two measurements is noted as the amount of "navicular drop" (NDT).
Measured: 10 minutes
Secondary outcomes (4)
Age
Age
Measured: 1 minute
Gender
Gender
Measured: 1 minute
Body-Mass index
weight/ (height)2
Measured: 3 minutes
Foot Posture Index
FPI
Measured: 15 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Oct 2022
- Study start1 Apr 2023
- Primary completion1 May 2024
- Study completion1 Aug 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HealthyStudies of the same condition, open and under way.
- 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
- Cross-sectional
- Enrolment
- 100 participants (actual)
Sponsor and investigators
- Lead sponsor
- Istanbul Medeniyet University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Nilufer Kablan, Istanbul Medeniyet University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05595902
- Sponsor's protocol ID
- IstanbulMU81
- Status last verified
- Jul 2026
- First submitted
- 24 Oct 2022
- Last updated
- 30 Jul 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 30 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Determination of Normative Values of Navicular Height and Navicular Drop Amount in Geriatric Individuals and Investigation of the Effect of Age, Gender and Body Mass Index on Normative Values
- ClinicalTrials.gov ID
- NCT05595902
- Acronym / sponsor ID
- IstanbulMU81
- Conditions
- Healthy
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 100 participants (actual)
- Lead sponsor
- Istanbul Medeniyet UniversityUniversity, hospital or other
- Study start
- 1 Apr 2023 (actual)
- Primary completion
- 1 May 2024 (actual)
- Study completion
- 1 Aug 2025 (actual)
- First posted
- 27 Oct 2022 (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 determine the normative values of navicular height and navicular drop in individuals over 65 years of age. The secondary aim is to investigate the effects of age, gender, and body mass index on these normative values.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Young older adults | – | –≥65-<75 years of age |
| Older adults | – | –≥75-<90 years of age |
| ≥90 years old | – | – |
Who may qualify
- Ages
- 65 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Older adult
- Study population
- Healthy older adults
Key inclusion criteria (2 listed)
- Being 65 years or older
- Having a body mass index between 18.5 and 29.0 kg/m2
Key exclusion criteria (4 listed)
- Having chronic diseases that affect the foot structure and connective tissue (such as diabetes mellitus, rheumatoid arthritis, gout, etc.).
- Have had foot or ankle surgery in the last 6 months
- Having orthopedic or neurological deformities (related to stroke, Parkinson's, multiple sclerosis, spinal cord injury, etc.) that will affect the foot structure and mobility.
- Dependence on standing and ambulation (except independence gained through the use of assistive devices)
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
Navicular Drop Test
Time frame: 10 minutes
The navicular height and the amount of navicular drop will be made separately for each foot. The navicular prominence is found by palpation and marked with a marker pen when the individual is in a sitting position with the hips and knees flexed to 90 degrees and the subtalar joint in neutral position (the subtalar joint is palpated and the talus is in a neutral position). The height of the navicular protrusion from the ground is measured with a rigid ruler. Then, while the person stands on both feet equally, the height of the navicular protrusion from the ground is also measured with a ruler. The difference between the two measurements is noted as the amount of "navicular drop" (NDT).
4 secondary outcomes
Age
Time frame: 1 minute
Gender
Time frame: 1 minute
Body-Mass index
Time frame: 3 minutes
Foot Posture Index
Time frame: 15 minutes
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 30 Jul 2026.
- 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.
The record lists no contact. Use the official record to reach the sponsor.
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 Healthy, run by Istanbul Medeniyet 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 2 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 30 Jul 2026. 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?
Navicular Drop Test (time frame: 10 minutes). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 30 Jul 2026.