HealhtyNCT07691866
Effect of Chronotype on Balance and Cognitive Function
An observational study of Healhty, run by Istanbul Gedik University at 1 site in Turkey (Türkiye).
Trial summary
Balance is the ability of an individual to maintain posture against gravity and sustain stability during movement; it depends on the coordinated functioning of the proprioceptive, visual, and vestibular systems, as well as the central nervous system. Read more about this study
- Who is it for?
- Ages 18 to 35 yearsHealthy volunteers can take part
- Conditions the study is for
- Healhty
- How many people
- 40 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Aug 2026to 20 Oct 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 35 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: Healty young people
Who may be able to join
- Being between 18-35 years old
- Not using any neuropsychiatric medication
- Not having undergone lower extremity surgery
- Having at least a bachelor's degree
Who cannot join
- A history of a neurological disease
- A history of a neuropsychiatric disease
- Individuals with an intermediate type according to the Horne-Ostberg questionnaire results
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Turkey (Türkiye)1 site, 1 recruiting
- Recruiting
Istanbul Gedik Uni
Istanbul, Istanbul, 34771
YASİN YILDIRIM, 905069341346, yasin.yildirim@gedik.edu.tr
About this study
Official title: Examining the Relationship Between Balance and Cognitive Functions Based on Chronotype
Balance is the ability of an individual to maintain posture against gravity and sustain stability during movement; it depends on the coordinated functioning of the proprioceptive, visual, and vestibular systems, as well as the central nervous system. Current studies show that movement control occurs not only through the motor system but also through the interaction of sensory-cognitive-motor components. Cognitive functions encompass processes such as attention, memory, visuospatial skills, and executive functions, with attention and visuospatial processing playing a particularly important role in balance control. The literature reports significant relationships between balance and cognitive functions, particularly noting that increased attention requirements in dual-tasking situations negatively impact balance performance. Furthermore, it has been shown that both balance performance and cognitive functions are affected by circadian rhythm and chronotype, with individuals exhibiting different performance levels at different times of the day. Despite this, studies examining the relationship between balance and cognitive functions appear to have insufficiently addressed the chronotype factor. Therefore, the aim of this study is to investigate how the relationship between balance and cognitive functions changes according to individuals' chronotypes.
- Conditions
- Healhty
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 |
|---|---|---|
| Early type | Not described | |
| Late type | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Chronotype
It will be assessed by survey (Horne Ostberg). The survey contains a total of 19 questions. Points will be added up based on participants' answers to obtain a score between 16 and 86. 16-30 will be considered evening type, and 70-86 will be considered morning type.
Measured: baseline - 2 weeks later
Secondary outcomes (3)
balance
It will be assessed with KoreBalance balance system. Users will be asked to keep their eyes open while maintaining a center of gravity on an electronic device. Results are presented as point scores.
Measured: baseline - 2 weeks later
Attention measurement
It will be assessed with stroop test. Individuals will be tested at a desk. They will first be asked to read only the text written in three different colors. Then they will be asked to read the colors of the text. The total score will be recorded in milliseconds.
Measured: baseline - 2 weeks later
Visuo-spatial attention
It will be assessed with Flanker task. Eriksen Flanker Task is a classic cognitive psychology test that measures selective attention and response inhibition. You are asked to identify the direction of a central target (e.g., an arrow) while ignoring distracting "flanker" arrows on either side, which can either point the same way (congruent) or opposite (incongruent). The total correct responses are kept.
Measured: baseline - 2 weeks later
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Jul 2026
- Study start1 Aug 2026
- Primary completion25 Sep 2026
- Study completion20 Oct 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HealhtyStudies 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
- Other
- Time perspective
- Prospective
- Enrolment
- 40 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Istanbul Gedik University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Yasin Yildirim, Istanbul Gedik University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07691866
- Sponsor's protocol ID
- E-10840098-202.3.02-3738
- Status last verified
- Jun 2026
- First submitted
- 17 Jun 2026
- Last updated
- 14 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 14 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Examining the Relationship Between Balance and Cognitive Functions Based on Chronotype
- ClinicalTrials.gov ID
- NCT07691866
- Acronym / sponsor ID
- E-10840098-202.3.02-3738
- Conditions
- Healhty
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 40 participants (estimated)
- Lead sponsor
- Istanbul Gedik UniversityUniversity, hospital or other
- Study start
- 1 Aug 2026 (actual)
- Primary completion
- 25 Sep 2026 (actual)
- Study completion
- 20 Oct 2026 (estimated)
- First posted
- 9 Jul 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.
Balance is the ability of an individual to maintain posture against gravity and sustain stability during movement; it depends on the coordinated functioning of the proprioceptive, visual, and vestibular systems, as well as the central nervous system. Current studies show that movement control occurs not only through the motor system but also through the interaction of sensory-cognitive-motor components. Cognitive functions encompass processes such as attention, memory, visuospatial skills, and executive functions, with attention and visuospatial processing playing a particularly important role in balance control. The literature reports significant relationships between balance and cognitive functions, particularly noting that increased attention requirements in dual-tasking situations negatively impact balance performance. Furthermore, it has been shown that both balance performance and cognitive functions are affected by circadian rhythm and chronotype, with individuals exhibiting different performance levels at different times of the day. Despite this, studies examining the relationship between balance and cognitive functions appear to have insufficiently addressed the chronotype factor. Therefore, the aim of this study is to investigate how the relationship between balance and cognitive functions changes according to individuals' chronotypes.
Study design
- Observational model
- Other
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Early type | – | – |
| Late type | – | – |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- Healty young people
Key inclusion criteria (4 listed)
- Being between 18-35 years old
- Not using any neuropsychiatric medication
- Not having undergone lower extremity surgery
- Having at least a bachelor's degree
Key exclusion criteria (3 listed)
- A history of a neurological disease
- A history of a neuropsychiatric disease
- Individuals with an intermediate type according to the Horne-Ostberg questionnaire results
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
Chronotype
Time frame: baseline - 2 weeks later
It will be assessed by survey (Horne Ostberg). The survey contains a total of 19 questions. Points will be added up based on participants' answers to obtain a score between 16 and 86. 16-30 will be considered evening type, and 70-86 will be considered morning type.
3 secondary outcomes
balance
Time frame: baseline - 2 weeks later
Attention measurement
Time frame: baseline - 2 weeks later
Visuo-spatial attention
Time frame: baseline - 2 weeks later
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Oct 2026.
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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.
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 Healhty, run by Istanbul Gedik 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 3 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: looking for participants now, as of the sponsor's last update on 14 Oct 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Chronotype (time frame: baseline - 2 weeks later). 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 14 Oct 2026.