ProprioceptionNCT07437066
Investigation of Vision on Knee Joint Velocity Sense in Healthy Adults
An observational study of Proprioception and Vision, run by University of Thessaly at 1 site in Greece.
Trial summary
The study included two tasks to test how well people could reproduce the speed of knee movement at two different speeds (20°/s and 120°/s) under two vision conditions: eyes closed and eyes open. It included 10 participants. The equipment used was a Biodex 4 Pro dynamometer, an eye mask, and a goniometer. Read more about this study
- Who is it for?
- Ages 18 to 25 yearsHealthy volunteers can take part
- Conditions the study is for
- Proprioception, Vision
- How many people
- 60 participants
- Where
- 1 siteGreece
- Study dates
- 15 May 2025to 20 Jun 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 18 to 25 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: 60 healthy adults participated in the study. Participants were aged 18-25 years, included both males and females (30 male - 30 female), and had no history of knee injuries. All measurements were performed in a controlled laboratory environment.
Who may be able to join
- young, healthy adults
Who cannot join
- knee pain or knee disorder, or knee surgery, neurological diseases, heart diseases, respiratory diseases
Trial locations and contacts
1 site in 1 country.
Greece1 site
Physiotherapy Department, University of Thessaly
Lamia, Fthiotis, 35132
About this study
Official title: The Effect of Vision on Proprioceptive Perception of Angular Velocity at the Knee Joint.
The study included two tasks to test how well people could reproduce the speed of knee movement at two different speeds (20°/s and 120°/s) under two vision conditions: eyes closed and eyes open. It included 10 participants.
The equipment used was a Biodex 4 Pro dynamometer, an eye mask, and a goniometer. Participants wore shorts so that the knee area was free for the measurements.
Read more
Before starting, each participant's height, weight, age, and sex were recorded. All measurements were done while sitting. The order of the tests was random. Each participant chose the first four letters of the alphabet at random, and each letter matched a combination of speed and vision condition (A: eyes closed, B: eyes open, C: 120°/s, D: 20°/s). For the eyes-closed condition, participants wore the eye mask. The tests were conducted in a quiet room to help participants focus.
First, the knee was moved passively by the machine so participants could feel the speed. Then, they tried to reproduce the same speed themselves. The 20°/s tests had 5 repetitions, and the 120°/s tests had 8 repetitions. The whole session lasted about 20 minutes.
Participants tried to stay focused, and at the end of each condition, they rated their attention using a simple 10-point scale.
- Conditions
- Proprioception, Vision
- Keywords
- proprioception, vision, velocity replication
What is being measured
The primary outcome is the main question the study is designed to answer.
Αbsolute error of target velocity under the two conditions
Participants' ability to reproduce the speed of knee movement at two velocities (20°/s and 120°/s) under eyes open and eyes closed conditions, measured with a Biodex 4 Pro dynamometer.
Measured: single session ( 20 minutes)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Feb 2026
- Study start15 May 2025
- Primary completion13 Jun 2025
- Study completion20 Jun 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for ProprioceptionStudies of the same condition, open and under way.
- More trials run by University of ThessalyThe 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
- Other
- Time perspective
- Cross-sectional
- Enrolment
- 60 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Thessaly
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Anthi Kellari, University of Thessaly
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07437066
- Sponsor's protocol ID
- 13866/25/ΤΦΣΚΘ
- Status last verified
- Feb 2026
- First submitted
- 20 Feb 2026
- Last updated
- 27 Feb 2026
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 27 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Vision on Proprioceptive Perception of Angular Velocity at the Knee Joint.
- ClinicalTrials.gov ID
- NCT07437066
- Acronym / sponsor ID
- 13866/25/ΤΦΣΚΘ
- Conditions
- Proprioception, Vision
- Keywords
- proprioception, vision, velocity replication
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 60 participants (actual)
- Lead sponsor
- University of ThessalyUniversity, hospital or other
- Study start
- 15 May 2025 (actual)
- Primary completion
- 13 Jun 2025 (actual)
- Study completion
- 20 Jun 2025 (actual)
- First posted
- 27 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.
The study included two tasks to test how well people could reproduce the speed of knee movement at two different speeds (20°/s and 120°/s) under two vision conditions: eyes closed and eyes open. It included 10 participants.
The equipment used was a Biodex 4 Pro dynamometer, an eye mask, and a goniometer. Participants wore shorts so that the knee area was free for the measurements.
Before starting, each participant's height, weight, age, and sex were recorded. All measurements were done while sitting. The order of the tests was random. Each participant chose the first four letters of the alphabet at random, and each letter matched a combination of speed and vision condition (A: eyes closed, B: eyes open, C: 120°/s, D: 20°/s). For the eyes-closed condition, participants wore the eye mask. The tests were conducted in a quiet room to help participants focus.
First, the knee was moved passively by the machine so participants could feel the speed. Then, they tried to reproduce the same speed themselves. The 20°/s tests had 5 repetitions, and the 120°/s tests had 8 repetitions. The whole session lasted about 20 minutes.
Participants tried to stay focused, and at the end of each condition, they rated their attention using a simple 10-point scale.
Study design
- Observational model
- Other
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 18 to 25 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- 60 healthy adults participated in the study. Participants were aged 18-25 years, included both males and females (30 male - 30 female), and had no history of knee injuries. All measurements were performed in a controlled laboratory environment.
Key inclusion criteria (1 listed)
- young, healthy adults
Key exclusion criteria (1 listed)
- knee pain or knee disorder, or knee surgery, neurological diseases, heart diseases, respiratory diseases
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
Αbsolute error of target velocity under the two conditions
Time frame: single session ( 20 minutes)
Participants' ability to reproduce the speed of knee movement at two velocities (20°/s and 120°/s) under eyes open and eyes closed conditions, measured with a Biodex 4 Pro dynamometer.
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 27 Feb 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. 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 Proprioception and Vision, run by University of Thessaly at 1 site in Greece.
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 1 inclusion and 1 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 27 Feb 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 Greece. 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?
Αbsolute error of target velocity under the two conditions (time frame: single session ( 20 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 27 Feb 2026.