GripNCT06602401
Investigation of Functional Parameters
An observational study of Grip and Pinch, run by Gazi University at 1 site in Turkey (Türkiye).
Trial summary
The goal of this cross-sectional study is to investigate the relationships between grip/pinch strengths, wrist flexion-extension strengths, wrist proprioception, manual dexterity, and bimanual coordination in healthy volunteers. Read more about this study
- Who is it for?
- Any ageHealthy volunteers can take part
- How many people
- 25 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 12 Apr 2023to 12 Jan 2024
- 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 Any age
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Study population: No specific age or disease/injury group is targeted. The study was conducted with healthy volunteers.
Who may be able to join
- After providing detailed information about the research, individuals who agreed to participate were included in the study.
Who cannot join
- Individuals who had undergone surgery or trauma in the upper extremity, had fractures or acute orthopedic injuries, had a history of neuromuscular diseases or congenital anomalies, had skin infections, or other conditions that could affect the assessment within the past 6 months were excluded from the study.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Investigation of Functional Parameters: Relationships Between Bimanual Coordination, Proprioception, Manuel Dexterity, and Strength
The goal of this cross-sectional study is to investigate the relationships between grip/pinch strengths, wrist flexion-extension strengths, wrist proprioception, manual dexterity, and bimanual coordination in healthy volunteers. The hypotheses are:
H0: There is no relationship between grip/pinch strengths, wrist flexion-extension strengths, wrist proprioception, manual dexterity, and bimanual coordination.
Read more
H1: There is a relationship between grip/pinch strengths, wrist flexion-extension strengths, wrist proprioception, manual dexterity, and bimanual coordination.
Within the scope of the study, the participants' active joint position sense (AJPS) and flexion-extension strengths of the wrist were assessed using an isokinetic dynamometer. Additionally, grip strength, key pinch, tip pinch, and palmar pinch strengths were evaluated using a dynamometer. The Purdue Pegboard Test was used to assess manual dexterity and bimanual coordination.
What is being measured
The primary outcome is the main question the study is designed to answer.
The Purdue Pegboard Test was used to assess bimanual coordination.
In the Purdue Pegboard test, participants, seated in front of the test board, were asked to placed pins into the holes on both sides of the board simultaneously with both hands as many pins as possible within 30 seconds. The total number of pins placed was recorded as the score for bimanual coordination.
Measured: Participants will be evaluated only once.
The Purdue Pegboard Test was used to assess manual dexterity.
In the Purdue Pegboard test, participants, seated in front of the test board, were first asked to use their dominant hand to pick up pins from the dominant side and place them into the holes on the same side, from top to bottom. They were instructed to place as many pins as possible within 30 seconds. The number of pins placed was recorded as the score for dominant hand manual dexterity. The same test was then conducted for the nondominant side.
Measured: Participants will be evaluated only once.
The active joint position sense was assessed using an isokinetic dynamometer.
For the assessment of wrist proprioception, an isokinetic dynamometer with demonstrated reliability [Cybex NORM®, Humac, CA, USA] was used.
Wrist proprioception was assessed by Active Joint Position Sense (AJPS) measurement. During the test, participants wore eye masks. For the AJPS assessment, the target angle was set at 30° extension, which is the functional position of the wrist. Participants were asked to actively move their wrist from the neutral position to the 30° extension and hold this position for 5 seconds. This trial was repeated three times. Participants were then asked to find the target angle three times. The amount of error between the target angle and the achieved angle was used to define the accuracy of the active joint position sense. The arithmetic mean of these three measurements was calculated and recorded.
Measured: Participants will be evaluated only once.
The flexion-extension strengths of the wrist were assessed using an isokinetic dynamometer.
Wrist flexion and extension strengths were also evaluated using the Cybex isokinetic dynamometer. These strength assessments were conducted in the same position and range of motion as the proprioception evaluations. Before starting the measurements, participants were informed about the test. At the beginning of the test, three practice trials were performed. The concentric-concentric strength measurement was conducted with an angular velocity of 60°/s for 5 repetitions. A 20-second rest period was allowed between the practice and test trials. The peak torque parameters for wrist flexion and extension in both wrists were measured.
Assessments began with the dominant side. Subsequently, the same measurements were repeated on the other extremity by adjusting the position of the dynamometer and chair. The device was calibrated before the participants were evaluated. All measurements were conducted by the same person to prevent inter-rater variability.
Measured: Participants will be evaluated only once.
Grip and pinch strengths were measured using a digital dynamometer.
The assessment of gross grip strength was performed using a digital dynamometer (J-Tech Commender Grip Track). Measurements were taken with the participant seated, the elbow flexed at 90 degrees, the wrist in up to 30 degrees of extension, and the forearm in a neutral rotation position. The dynamometer's grip width was set to the second level. Maximum grip force was measured by having the participant squeeze as hard as possible three times, and the arithmetic mean of these three measurements was calculated. Key pinch, palmar pinch, and tip pinch strength measurements were conducted using a pinch gauge (Baseline Mechanical Pinch Gauge, 60 lb) in the same position and with the same measurement technique as the gross grip strength assessment. All evaluation protocols were established according to the recommendations of the American Society of Hand Therapists.
Measured: Participants will be evaluated only once.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Sep 2024
- Study start12 Apr 2023
- Primary completion12 Jan 2024
- Study completion12 Jan 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for GripStudies 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
- Prospective
- Enrolment
- 25 participants (actual)
Sponsor and investigators
- Lead sponsor
- Gazi University
- Sponsor type
- University, hospital or other
- Collaborators
- Ali ZORLULAR, Tuğçe ÇOBAN, Ahmet GÖKKURT, Zeynep EMİR, Nevin ATALAY GÜZEL, Deran OSKAY
- Responsible party
- Principal investigator, Barış SEVEN, Gazi University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06602401
- Sponsor's protocol ID
- 4
- Status last verified
- Aug 2024
- First submitted
- 17 Sep 2024
- Last updated
- 19 Sep 2024
- 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 19 Sep 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Investigation of Functional Parameters: Relationships Between Bimanual Coordination, Proprioception, Manuel Dexterity, and Strength
- ClinicalTrials.gov ID
- NCT06602401
- Acronym / sponsor ID
- 4
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 25 participants (actual)
- Lead sponsor
- Gazi UniversityUniversity, hospital or other
- Collaborators
- Ali ZORLULAR, Tuğçe ÇOBAN, Ahmet GÖKKURT, Zeynep EMİR, Nevin ATALAY GÜZEL, Deran OSKAY
- Study start
- 12 Apr 2023 (actual)
- Primary completion
- 12 Jan 2024 (actual)
- Study completion
- 12 Jan 2024 (actual)
- First posted
- 19 Sep 2024 (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 goal of this cross-sectional study is to investigate the relationships between grip/pinch strengths, wrist flexion-extension strengths, wrist proprioception, manual dexterity, and bimanual coordination in healthy volunteers. The hypotheses are:
H0: There is no relationship between grip/pinch strengths, wrist flexion-extension strengths, wrist proprioception, manual dexterity, and bimanual coordination.
H1: There is a relationship between grip/pinch strengths, wrist flexion-extension strengths, wrist proprioception, manual dexterity, and bimanual coordination.
Within the scope of the study, the participants' active joint position sense (AJPS) and flexion-extension strengths of the wrist were assessed using an isokinetic dynamometer. Additionally, grip strength, key pinch, tip pinch, and palmar pinch strengths were evaluated using a dynamometer. The Purdue Pegboard Test was used to assess manual dexterity and bimanual coordination.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
- Study population
- No specific age or disease/injury group is targeted. The study was conducted with healthy volunteers.
Key inclusion criteria (1 listed)
- After providing detailed information about the research, individuals who agreed to participate were included in the study.
Key exclusion criteria (1 listed)
- Individuals who had undergone surgery or trauma in the upper extremity, had fractures or acute orthopedic injuries, had a history of neuromuscular diseases or congenital anomalies, had skin infections, or other conditions that could affect the assessment within the past 6 months were excluded from the study.
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
The Purdue Pegboard Test was used to assess bimanual coordination.
Time frame: Participants will be evaluated only once.
In the Purdue Pegboard test, participants, seated in front of the test board, were asked to placed pins into the holes on both sides of the board simultaneously with both hands as many pins as possible within 30 seconds. The total number of pins placed was recorded as the score for bimanual coordination.
The Purdue Pegboard Test was used to assess manual dexterity.
Time frame: Participants will be evaluated only once.
In the Purdue Pegboard test, participants, seated in front of the test board, were first asked to use their dominant hand to pick up pins from the dominant side and place them into the holes on the same side, from top to bottom. They were instructed to place as many pins as possible within 30 seconds. The number of pins placed was recorded as the score for dominant hand manual dexterity. The same test was then conducted for the nondominant side.
The active joint position sense was assessed using an isokinetic dynamometer.
Time frame: Participants will be evaluated only once.
For the assessment of wrist proprioception, an isokinetic dynamometer with demonstrated reliability [Cybex NORM®, Humac, CA, USA] was used. Wrist proprioception was assessed by Active Joint Position Sense (AJPS) measurement. During the test, participants wore eye masks. For the AJPS assessment, the target angle was set at 30° extension, which is the functional position of the wrist. Participants were asked to actively move their wrist from the neutral position to the 30° extension and hold this position for 5 seconds. This trial was repeated three times. Participants were then asked to find the target angle three times. The amount of error between the target angle and the achieved angle was used to define the accuracy of the active joint position sense. The arithmetic mean of these three measurements was calculated and recorded.
The flexion-extension strengths of the wrist were assessed using an isokinetic dynamometer.
Time frame: Participants will be evaluated only once.
Wrist flexion and extension strengths were also evaluated using the Cybex isokinetic dynamometer. These strength assessments were conducted in the same position and range of motion as the proprioception evaluations. Before starting the measurements, participants were informed about the test. At the beginning of the test, three practice trials were performed. The concentric-concentric strength measurement was conducted with an angular velocity of 60°/s for 5 repetitions. A 20-second rest period was allowed between the practice and test trials. The peak torque parameters for wrist flexion and extension in both wrists were measured. Assessments began with the dominant side. Subsequently, the same measurements were repeated on the other extremity by adjusting the position of the dynamometer and chair. The device was calibrated before the participants were evaluated. All measurements were conducted by the same person to prevent inter-rater variability.
Grip and pinch strengths were measured using a digital dynamometer.
Time frame: Participants will be evaluated only once.
The assessment of gross grip strength was performed using a digital dynamometer (J-Tech Commender Grip Track). Measurements were taken with the participant seated, the elbow flexed at 90 degrees, the wrist in up to 30 degrees of extension, and the forearm in a neutral rotation position. The dynamometer's grip width was set to the second level. Maximum grip force was measured by having the participant squeeze as hard as possible three times, and the arithmetic mean of these three measurements was calculated. Key pinch, palmar pinch, and tip pinch strength measurements were conducted using a pinch gauge (Baseline Mechanical Pinch Gauge, 60 lb) in the same position and with the same measurement technique as the gross grip strength assessment. All evaluation protocols were established according to the recommendations of the American Society of Hand Therapists.
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 19 Sep 2024.
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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 Grip and Pinch, run by Gazi 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 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 19 Sep 2024. 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?
The Purdue Pegboard Test was used to assess bimanual coordination. (time frame: Participants will be evaluated only once.). The study lists 5 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 19 Sep 2024; AzTrials last refreshed its copy on 30 Oct 2026.