HealthyNCT07413380
Effects of Arm Measurements on Upper Limb Skills and Reaction Time
A study of Healthy, run by Istinye University at 1 site in Turkey (Türkiye).
Trial summary
In this study, upper extremity anthropometric characteristics, functional upper extremity skills, and reaction time will be examined in healthy young adults. A total of 46 healthy individuals aged between 18 and 25 years, with no history of systemic disease or upper extremity injury affecting functional performance… Read more about this study
- Who is it for?
- Ages 18 to 25 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 46 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 12 Mar 2026to 30 Mar 2026
- Phase
- Interventional
- 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 25 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Aged between 18 and 25 years
- No medical condition requiring regular medical supervision
- No history of upper extremity injury resulting in sequelae or any upper extremity injury within the past year
- Ability to communicate verbally and in writing in Turkish or English
Who cannot join
- Presence of postural abnormalities, movement restrictions, or pain affecting grasping or upper extremity function, as determined by inspection
- Adhesions, muscle shortening, or restricted joint range of motion affecting the neck muscles
- History of cervical canal stenosis or cervical disc herniation
- Significant impairment of balance system function
- Visual or sensory function disorders
- Upper extremity muscle tone disorders, including essential tremor
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Istinye University
Istanbul, Zeyti̇nburnu/i̇stanbul, 34010
About this study
Official title: The Effect of Upper Extremity Anthropometric Characteristics on Functional Upper Extremity Skills and Reaction Time
In this study, upper extremity anthropometric characteristics, functional upper extremity skills, and reaction time will be examined in healthy young adults. A total of 46 healthy individuals aged between 18 and 25 years, with no history of systemic disease or upper extremity injury affecting functional performance, will be included. Upper extremity anthropometric measurements, including arm, forearm, and hand lengths and circumferential measurements, will be obtained using standardized procedures. Functional upper extremity skills will be assessed using the Purdue Pegboard Test, and reaction time will be evaluated using the Nelson Hand Reaction Test. Correlation analyses will be performed to examine the relationships between upper extremity anthropometric characteristics, functional upper extremity skills, and reaction time.
- Conditions
- Healthy
- Being tested
- No Interventions
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
No InterventionsOther
This study is observational in nature and does not include any therapeutic intervention.
Participants will undergo anthropometric measurements and assessments of upper extremity function and reaction time for research purposes only.
| Study group | Role | What they receive |
|---|---|---|
| Observational Group | Other | Not described Receives: Other: No Interventions |
What is being measured
The primary outcome is the main question the study is designed to answer.
Upper Extremity Anthropometric Measurements
Arm, forearm, and hand length and circumference measurements (cm).
Measured: Baseline
Functional Upper Extremity Skills (Purdue Pegboard Test)
Functional upper extremity skills will be evaluated using the Purdue Pegboard Test. Performance will be measured as the number of pegs placed within 30 seconds for the dominant hand, non-dominant hand, and both-hands conditions, as well as the total number of components assembled within one minute during the assembly subtest. Higher scores will indicate better functional upper extremity performance.
Measured: Baseline
Reaction Time (Nelson Hand Reaction Test)
Reaction time will be assessed using the Nelson Hand Reaction Test. Reaction time performance will be quantified based on the distance (cm) the ruler falls before being caught, with values converted to reaction time in milliseconds. The average of the best three trials will be used for analysis, with lower values indicating faster reaction time.
Measured: Baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Feb 2026
- Study start12 Mar 2026
- Primary completion20 Mar 2026
- Study completion30 Mar 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for HealthyStudies of the same condition, open and under way.
- More trials run by Istinye 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 46 participants (actual)
Sponsor and investigators
- Lead sponsor
- Istinye University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Gül Deniz YILMAZ YELVAR, Study chair, Istinye University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07413380
- Sponsor's protocol ID
- IstinyeUni-B.UYANIK.002
- Status last verified
- Jan 2026
- First submitted
- 2 Feb 2026
- Last updated
- 22 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Tonak HA, Kaya Kara O, Sahin S. Correlation of hand functionality and grip strengths with anthropometric measurements. Work. 2021;69(1):187-195. doi: 10.3233/WOR-213468.
PubMed 33998582
Study at a glance
From the registry record, last updated by the sponsor on 22 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Upper Extremity Anthropometric Characteristics on Functional Upper Extremity Skills and Reaction Time
- ClinicalTrials.gov ID
- NCT07413380
- Acronym / sponsor ID
- IstinyeUni-B.UYANIK.002
- Conditions
- Healthy
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 46 participants (actual)
- Lead sponsor
- Istinye UniversityUniversity, hospital or other
- Study start
- 12 Mar 2026 (actual)
- Primary completion
- 20 Mar 2026 (actual)
- Study completion
- 30 Mar 2026 (actual)
- First posted
- 17 Feb 2026 (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.
In this study, upper extremity anthropometric characteristics, functional upper extremity skills, and reaction time will be examined in healthy young adults. A total of 46 healthy individuals aged between 18 and 25 years, with no history of systemic disease or upper extremity injury affecting functional performance, will be included. Upper extremity anthropometric measurements, including arm, forearm, and hand lengths and circumferential measurements, will be obtained using standardized procedures. Functional upper extremity skills will be assessed using the Purdue Pegboard Test, and reaction time will be evaluated using the Nelson Hand Reaction Test. Correlation analyses will be performed to examine the relationships between upper extremity anthropometric characteristics, functional upper extremity skills, and reaction time.
Study design
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Observational Group | Other | Other: No Interventions |
Who may qualify
- Ages
- 18 to 25 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Aged between 18 and 25 years
- No medical condition requiring regular medical supervision
- No history of upper extremity injury resulting in sequelae or any upper extremity injury within the past year
- Ability to communicate verbally and in writing in Turkish or English
Key exclusion criteria (6 listed)
- Presence of postural abnormalities, movement restrictions, or pain affecting grasping or upper extremity function, as determined by inspection
- Adhesions, muscle shortening, or restricted joint range of motion affecting the neck muscles
- History of cervical canal stenosis or cervical disc herniation
- Significant impairment of balance system function
- Visual or sensory function disorders
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| No InterventionsThis study is observational in nature and does not include any therapeutic intervention. Participants will undergo anthropometric measurements and assessments of upper extremity function and reaction time for research purposes only. | Other | Observational Group |
Primary outcome
Upper Extremity Anthropometric Measurements
Time frame: Baseline
Arm, forearm, and hand length and circumference measurements (cm).
Functional Upper Extremity Skills (Purdue Pegboard Test)
Time frame: Baseline
Functional upper extremity skills will be evaluated using the Purdue Pegboard Test. Performance will be measured as the number of pegs placed within 30 seconds for the dominant hand, non-dominant hand, and both-hands conditions, as well as the total number of components assembled within one minute during the assembly subtest. Higher scores will indicate better functional upper extremity performance.
Reaction Time (Nelson Hand Reaction Test)
Time frame: Baseline
Reaction time will be assessed using the Nelson Hand Reaction Test. Reaction time performance will be quantified based on the distance (cm) the ruler falls before being caught, with values converted to reaction time in milliseconds. The average of the best three trials will be used for analysis, with lower values indicating faster reaction time.
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 22 Apr 2026.
- Background: PubMed 33998582Tonak HA, Kaya Kara O, Sahin S. Correlation of hand functionality and grip strengths with anthropometric measurements. Work. 2021;69(1):187-195. doi: 10.3233/WOR-213468.
- 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.
Gül Deniz YILMAZ YELVAR study chair
Istinye University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study of Healthy, run by Istinye 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 4 inclusion and 6 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 22 Apr 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?
Upper Extremity Anthropometric Measurements (time frame: Baseline). The study lists 3 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 NCT07413380, which also lists 1 linked publication.
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 22 Apr 2026.