Saccadic Eye-Movement Exercise and Physical PerformanceNCT07853521
Acute Effects of Saccadic Eye-Movement Exercise on Flexibility and Handgrip Strength
A study testing Four-Phase Saccadic Eye-Movement Exercise Protocol in people with Saccadic Eye-Movement Exercise and Physical Performance and Physical Flexibility, run by Istanbul Gelisim University at 1 site in Turkey (Türkiye).
Trial summary
This randomized controlled trial investigated whether a short session of saccadic eye-movement exercises could produce immediate changes in flexibility and handgrip strength in healthy adults. Thirty participants were randomly assigned to either an experimental group or a control group. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Saccadic Eye-Movement Exercise and Physical Performance, Physical Flexibility, Handgrip Strength
- What is being tested?
- Four-Phase Saccadic Eye-Movement Exercise Protocol
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 3 Jun 2025to 3 Jul 2025
- 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 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Adult participants.
- Healthy and recreationally active individuals.
- Normal vision, either corrected or uncorrected.
- No known oculomotor disorder such as nystagmus.
- Willingness to participate and provide written informed consent.
Who cannot join
- Upper-extremity or spinal surgery, orthopedic injury, or neurological injury within the previous 6 months.
- Presence of a neurological condition, including epilepsy.
- Presence of a vestibular condition, including vertigo.
- Presence of an oculomotor disorder such as nystagmus.
- Consumption of alcohol within 24 hours before testing.
- Use of central nervous system-acting medication within 24 hours before testing.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Istanbul Gelisim University
Istanbul, Istanbul, 34290
About this study
Official title: Acute Effects of a Four-Phase Saccadic Eye-Movement Protocol on Sit-and-Reach Flexibility and Handgrip Strength in Healthy Adults: A Randomized Controlled Trial
This randomized controlled trial investigated whether a short session of saccadic eye-movement exercises could produce immediate changes in flexibility and handgrip strength in healthy adults. Thirty participants were randomly assigned to either an experimental group or a control group. The experimental group completed a standardized four-phase eye-movement exercise protocol lasting approximately 6-8 minutes, while the control group rested quietly for the same period. Firat_Caglar_Frontiers_Eda Flexibility was assessed using the sit-and-reach test, and maximal handgrip strength was measured for both hands before and immediately after the intervention. The study aimed to determine whether brief saccadic eye-movement exercise could acutely influence these physical performance measures compared with resting. Firat_Caglar_Frontiers_Eda The study was conducted in healthy adults in a single-session design. All 30 participants completed the study, and no adverse events such as dizziness, nausea, nystagmus, or visual discomfort were reported.
- Conditions
- Saccadic Eye-Movement Exercise and Physical Performance, Physical Flexibility, Handgrip Strength
- Being tested
- Four-Phase Saccadic Eye-Movement Exercise Protocol
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Four-Phase Saccadic Eye-Movement Exercise ProtocolBehavioural
A standardized four-phase saccadic eye-movement protocol was performed in a quiet, normally lit room. Participants kept the head stationary while performing horizontal, vertical, diagonal, and random-target eye movements toward visual targets. The protocol lasted approximately 6-8 minutes, with 30-second rest intervals between sets. Post-intervention assessments were performed after a 2-minute seated rest period.
| Study group | Role | What they receive |
|---|---|---|
| rms and Interventions Error Found (1) Warning Found (1) Use this module to add descriptions of eac | Experimental | Participants performed a standardized four-phase saccadic eye-movement exercise protocol lasting approximately 6-8 minutes. The protocol included horizontal, vertical, diagonal, and random-target saccades. After the protocol, participants rested quietly for 2 minutes before post-intervention assessments were performed. Receives: Behavioral: Four-Phase Saccadic Eye-Movement Exercise Protocol |
| Resting Control Group | No intervention | Participants rested passively in the same environment for the same total duration as the experimental group and received no oculomotor stimulation. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Sit-and-Reach Flexibility
Flexibility was assessed using a Baseline® sit-and-reach box. Participants performed three valid trials, and the best distance reached was recorded in centimeters.
Measured: Immediately before and immediately after the single-session intervention
Right-Hand Maximal Handgrip Strength
Maximal isometric handgrip strength of the right hand was measured using a Baseline® mechanical hand dynamometer. Three maximal contractions were performed, and the highest value was recorded in kilograms.
Measured: Immediately before and immediately after the single-session intervention
Left-Hand Maximal Handgrip Strength
Maximal isometric handgrip strength of the left hand was measured using a Baseline® mechanical hand dynamometer. Three maximal contractions were performed, and the highest value was recorded in kilograms.
Measured: Immediately before and immediately after the single-session intervention
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Oct 2026
- Study start3 Jun 2025
- Primary completion3 Jul 2025
- Study completion3 Jul 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Saccadic Eye-Movement Exercise and Physical PerformanceStudies 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Participants were randomly assigned to either a saccadic eye-movement exercise group or a time-matched resting control group in a single-session, pre-test-post-test parallel-group design.
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Istanbul Gelisim University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Görkem Açar, Istanbul Gelisim University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07853521
- Sponsor's protocol ID
- FCE-SACCADE-2025-01
- Status last verified
- Oct 2026
- First submitted
- 26 Sep 2026
- Last updated
- 6 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 6 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Acute Effects of a Four-Phase Saccadic Eye-Movement Protocol on Sit-and-Reach Flexibility and Handgrip Strength in Healthy Adults: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT07853521
- Acronym / sponsor ID
- FCE-SACCADE-2025-01
- Conditions
- Saccadic Eye-Movement Exercise and Physical Performance, Physical Flexibility, Handgrip Strength
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Istanbul Gelisim UniversityUniversity, hospital or other
- Study start
- 3 Jun 2025 (actual)
- Primary completion
- 3 Jul 2025 (actual)
- Study completion
- 3 Jul 2025 (actual)
- First posted
- 1 Oct 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.
This randomized controlled trial investigated whether a short session of saccadic eye-movement exercises could produce immediate changes in flexibility and handgrip strength in healthy adults. Thirty participants were randomly assigned to either an experimental group or a control group. The experimental group completed a standardized four-phase eye-movement exercise protocol lasting approximately 6-8 minutes, while the control group rested quietly for the same period. Firat_Caglar_Frontiers_Eda Flexibility was assessed using the sit-and-reach test, and maximal handgrip strength was measured for both hands before and immediately after the intervention. The study aimed to determine whether brief saccadic eye-movement exercise could acutely influence these physical performance measures compared with resting. Firat_Caglar_Frontiers_Eda The study was conducted in healthy adults in a single-session design. All 30 participants completed the study, and no adverse events such as dizziness, nausea, nystagmus, or visual discomfort were reported.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
- Model description
- Participants were randomly assigned to either a saccadic eye-movement exercise group or a time-matched resting control group in a single-session, pre-test-post-test parallel-group design.
| Arm | Type | Receives |
|---|---|---|
| rms and Interventions Error Found (1) Warning Found (1) Use this module to add descriptions of eac | Experimental | Behavioral: Four-Phase Saccadic Eye-Movement Exercise ProtocolParticipants performed a standardized four-phase saccadic eye-movement exercise protocol lasting approximately 6-8 minutes. The protocol included horizontal, vertical, diagonal, and random-target saccades. After the protocol, participants rested quietly for 2 minutes before post-intervention assessments were performed. |
| Resting Control Group | No intervention | –Participants rested passively in the same environment for the same total duration as the experimental group and received no oculomotor stimulation. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Adult participants.
- Healthy and recreationally active individuals.
- Normal vision, either corrected or uncorrected.
- No known oculomotor disorder such as nystagmus.
- Willingness to participate and provide written informed consent.
Key exclusion criteria (6 listed)
- Upper-extremity or spinal surgery, orthopedic injury, or neurological injury within the previous 6 months.
- Presence of a neurological condition, including epilepsy.
- Presence of a vestibular condition, including vertigo.
- Presence of an oculomotor disorder such as nystagmus.
- Consumption of alcohol within 24 hours before testing.
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 |
|---|---|---|
| Four-Phase Saccadic Eye-Movement Exercise ProtocolA standardized four-phase saccadic eye-movement protocol was performed in a quiet, normally lit room. Participants kept the head stationary while performing horizontal, vertical, diagonal, and random-target eye movements toward visual targets. The protocol lasted approximately 6-8 minutes, with 30-second rest intervals between sets. Post-intervention assessments were performed after a 2-minute seated rest period. | Behavioural | rms and Interventions Error Found (1) Warning Found (1) Use this module to add descriptions of eac |
Primary outcome
Sit-and-Reach Flexibility
Time frame: Immediately before and immediately after the single-session intervention
Flexibility was assessed using a Baseline® sit-and-reach box. Participants performed three valid trials, and the best distance reached was recorded in centimeters.
Right-Hand Maximal Handgrip Strength
Time frame: Immediately before and immediately after the single-session intervention
Maximal isometric handgrip strength of the right hand was measured using a Baseline® mechanical hand dynamometer. Three maximal contractions were performed, and the highest value was recorded in kilograms.
Left-Hand Maximal Handgrip Strength
Time frame: Immediately before and immediately after the single-session intervention
Maximal isometric handgrip strength of the left hand was measured using a Baseline® mechanical hand dynamometer. Three maximal contractions were performed, and the highest value was recorded in kilograms.
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 6 Oct 2026.
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?
A study testing Four-Phase Saccadic Eye-Movement Exercise Protocol in people with Saccadic Eye-Movement Exercise and Physical Performance and Physical Flexibility, run by Istanbul Gelisim 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 5 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 6 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?
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?
Sit-and-Reach Flexibility (time frame: Immediately before and immediately after the single-session intervention). 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?
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 6 Oct 2026.