GeriatricNCT07562854
Comparison of Hand Grip Strength in Different Shoulder Positions in Geriatric Individuals: Position-Dependent Strength Analysis
An observational study of Geriatric and Elderly, run by Istanbul University - Cerrahpasa at 1 site in Turkey (Türkiye).
Trial summary
The aim of this study is to examine the relationship between hand grip strength, measured in different shoulder positions, and upper extremity muscle strength, and to reveal the clinical significance of position-dependent strength variation. Read more about this study
- Who is it for?
- Ages 65 years and olderHealthy volunteers can take part
- What is being tested?
- Muscle Strenght Assessment
- How many people
- 40 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 2 May 2026to 1 Aug 2026
- How long will I take part?
- 1 Day
- 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 65 years and older
- All sexes
- Healthy volunteers accepted
- Older adult
Study population: Individuals over 65 years of age
Who may be able to join
- Being 65 years of age or older
- Being an independent volunteer living in the community
- Being able to actively use the upper extremities
- Having the cognitive level to understand and follow the measurement instructions
- Providing written informed consent to participate in the study.
Who cannot join
- Presence of severe shoulder pain or rotator cuff pathology
- Loss of upper extremity function due to rheumatological disease
- Presence of significant visual or vestibular impairment that may affect measurements
- Presence of another systemic or musculoskeletal disease that may prevent the safe and accurate completion of tests
- History of upper extremity surgery or fracture within the last 6 months
- Failure to provide informed consent
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
Balıkesir University
Balıkesir
GULFİDAN TOKGÖZ, Lecturer, PhD (c), 0552 022 76 32, gulfidan.tokgoz@gmail.com
Ebru Tekin, PhD, Lecturer, 05301132479
About this study
Official title: Comparison of Hand Grip Strength in Different Shoulder Positions in Geriatric Individuals: Position-Dependent Strength Analysis - A Cross-Sectional Analytical Study With Repeated Measurements
The aim of this study is to examine the relationship between hand grip strength, measured in different shoulder positions, and upper extremity muscle strength, and to reveal the clinical significance of position-dependent strength variation.
Read the detailed description
The method, device, and test position used in measuring hand grip strength can significantly affect the results. Differences in measurement protocols reduce inter-study comparability and highlight the need for standardization (Roberts et al., 2011). However, it is suggested that measurements taken outside the standard position may reflect not only maximal strength but also neuromuscular control and functional force production strategies (Solomon et al., 2020). The question of whether hand grip strength is only an indicator of distal muscle strength or whether it also provides meaningful information about shoulder and upper extremity muscle strength becomes important.
- Being tested
- Muscle Strenght Assessment
- Keywords
- muscle strenght, hand grip strength, geriatrics, upper extremity muscle strength
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Muscle Strenght AssessmentOther
Hand grip strength measurements will be performed using a calibrated hydraulic hand dynamometer (JAMAR®). Measurements will be performed according to the standard protocol recommended by the American Society of Hand Therapists: the participant will be positioned in a seated position with shoulder adduction and neutral rotation, elbow 90° flexion, forearm in neutral position, and wrist 0-30° extension. Three repetitions will be performed for each position, with a 30-second rest period between repetitions to minimize fatigue, and the highest value (kg) will be used in the analysis. Hand grip strength will be assessed in four different shoulder positions: (1) standard measurement position, (2) shoulder 90° flexion, (3) shoulder 90° abduction, and (4) shoulder 30° extension. The measurement order will be randomized to minimize learning and fatigue effects. All measurements will be performed by the same researcher independent of the researcher performing the measurements.
| Study group | Role | What they receive |
|---|---|---|
| Geriartric Indivıduals | This will be done with individuals over 65 years of age. Receives: Other: Muscle Strenght Assessment |
What is being measured
The primary outcome is the main question the study is designed to answer.
Hand grip strength measurements
Hand grip strength measurements will be performed using a calibrated hydraulic hand dynamometer (JAMAR®, Lafayette Instrument, USA). Measurements will be performed according to the standard protocol recommended by the American Society of Hand Therapists (ASHT): the participant will be positioned in a seated position with shoulder adduction and neutral rotation, elbow 90° flexion, forearm in neutral position, and wrist 0-30° extension (Fess and Moran, 1981; Roberts et al., 2011). Three repetitions will be performed for each position, with a 30-second rest period between repetitions to minimize fatigue, and the highest value (kg) will be used in the analysis. Hand grip strength will be assessed in four different shoulder positions: (1) standard measurement position, (2) shoulder 90° flexion, (3) shoulder 90° abduction, and (4) shoulder 30° extension. The measurement order will be randomized to minimize learning and fatigue effects. All measurements will be performed by the same research
Measured: 1 day
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 May 2026
- Study start2 May 2026 (estimated)
- Primary completion15 May 2026 (estimated)
- Study completion1 Aug 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for GeriatricStudies of the same condition, open and under way.
- More trials run by Istanbul University - CerrahpasaThe 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
- 40 participants (estimated)
- Target duration
- 1 Day
Sponsor and investigators
- Lead sponsor
- Istanbul University - Cerrahpasa
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Gulfidan Tokgoz, Balikesir University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07562854
- Sponsor's protocol ID
- 2026/41
- Status last verified
- May 2026
- First submitted
- 25 Apr 2026
- Last updated
- 13 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Kawase Y, Arai S, Yoshida I, Sawaya Y. Effects of Different Body Postures on Handgrip Strength Measurements Among Young Adults: A Preliminary Comparison of Standing, Chair-Seated, and Wheelchair-Seated Positions. Cureus. 2025 Oct 22;17(10):e95146. doi: 10.7759/cureus.95146. eCollection 2025 Oct.
PubMed 41281129Bohannon RW. Grip Strength: An Indispensable Biomarker For Older Adults. Clin Interv Aging. 2019 Oct 1;14:1681-1691. doi: 10.2147/CIA.S194543. eCollection 2019.
PubMed 31631989
Study at a glance
From the registry record, last updated by the sponsor on 13 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Hand Grip Strength in Different Shoulder Positions in Geriatric Individuals: Position-Dependent Strength Analysis - A Cross-Sectional Analytical Study With Repeated Measurements
- ClinicalTrials.gov ID
- NCT07562854
- Acronym / sponsor ID
- 2026/41
- Keywords
- muscle strenght, hand grip strength, geriatrics, upper extremity muscle strength
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 40 participants (estimated)
- Lead sponsor
- Istanbul University - CerrahpasaUniversity, hospital or other
- Study start
- 2 May 2026 (estimated)
- Primary completion
- 15 May 2026 (estimated)
- Study completion
- 1 Aug 2026 (estimated)
- First posted
- 1 May 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 aim of this study is to examine the relationship between hand grip strength, measured in different shoulder positions, and upper extremity muscle strength, and to reveal the clinical significance of position-dependent strength variation.
Detailed description
The method, device, and test position used in measuring hand grip strength can significantly affect the results. Differences in measurement protocols reduce inter-study comparability and highlight the need for standardization (Roberts et al., 2011). However, it is suggested that measurements taken outside the standard position may reflect not only maximal strength but also neuromuscular control and functional force production strategies (Solomon et al., 2020). The question of whether hand grip strength is only an indicator of distal muscle strength or whether it also provides meaningful information about shoulder and upper extremity muscle strength becomes important.
Study design
- Observational model
- Other
- Time perspective
- Cross-sectional
- Target follow-up
- 1 Day
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Geriartric Indivıduals | – | Other: Muscle Strenght AssessmentThis will be done with individuals over 65 years of age. |
Who may qualify
- Ages
- 65 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Older adult
- Study population
- Individuals over 65 years of age
Key inclusion criteria (5 listed)
- Being 65 years of age or older
- Being an independent volunteer living in the community
- Being able to actively use the upper extremities
- Having the cognitive level to understand and follow the measurement instructions
- Providing written informed consent to participate in the study.
Key exclusion criteria (6 listed)
- Presence of severe shoulder pain or rotator cuff pathology
- Loss of upper extremity function due to rheumatological disease
- Presence of significant visual or vestibular impairment that may affect measurements
- Presence of another systemic or musculoskeletal disease that may prevent the safe and accurate completion of tests
- History of upper extremity surgery or fracture within the last 6 months
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 |
|---|---|---|
| Muscle Strenght AssessmentHand grip strength measurements will be performed using a calibrated hydraulic hand dynamometer (JAMAR®). Measurements will be performed according to the standard protocol recommended by the American Society of Hand Therapists: the participant will be positioned in a seated position with shoulder adduction and neutral rotation, elbow 90° flexion, forearm in neutral position, and wrist 0-30° extension. Three repetitions will be performed for each position, with a 30-second rest period between repetitions to minimize fatigue, and the highest value (kg) will be used in the analysis. Hand grip strength will be assessed in four different shoulder positions: (1) standard measurement position, (2) shoulder 90° flexion, (3) shoulder 90° abduction, and (4) shoulder 30° extension. The measurement order will be randomized to minimize learning and fatigue effects. All measurements will be performed by the same researcher independent of the researcher performing the measurements. | Other | Geriartric Indivıduals |
Primary outcome
Hand grip strength measurements
Time frame: 1 day
Hand grip strength measurements will be performed using a calibrated hydraulic hand dynamometer (JAMAR®, Lafayette Instrument, USA). Measurements will be performed according to the standard protocol recommended by the American Society of Hand Therapists (ASHT): the participant will be positioned in a seated position with shoulder adduction and neutral rotation, elbow 90° flexion, forearm in neutral position, and wrist 0-30° extension (Fess and Moran, 1981; Roberts et al., 2011). Three repetitions will be performed for each position, with a 30-second rest period between repetitions to minimize fatigue, and the highest value (kg) will be used in the analysis. Hand grip strength will be assessed in four different shoulder positions: (1) standard measurement position, (2) shoulder 90° flexion, (3) shoulder 90° abduction, and (4) shoulder 30° extension. The measurement order will be randomized to minimize learning and fatigue effects. All measurements will be performed by the same research
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 13 May 2026.
- Results publication: PubMed 41281129Kawase Y, Arai S, Yoshida I, Sawaya Y. Effects of Different Body Postures on Handgrip Strength Measurements Among Young Adults: A Preliminary Comparison of Standing, Chair-Seated, and Wheelchair-Seated Positions. Cureus. 2025 Oct 22;17(10):e95146. doi: 10.7759/cureus.95146. eCollection 2025 Oct.
- Results publication: PubMed 31631989Bohannon RW. Grip Strength: An Indispensable Biomarker For Older Adults. Clin Interv Aging. 2019 Oct 1;14:1681-1691. doi: 10.2147/CIA.S194543. eCollection 2019.
- 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.
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 Geriatric and Elderly, run by Istanbul University - Cerrahpasa 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: opening soon, as of the sponsor's last update on 13 May 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?
Contact GULFİDAN TOKGÖZ, Lecturer, PhD (c) (0552 022 76 32, gulfidan.tokgoz@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Hand grip strength measurements (time frame: 1 day). 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 NCT07562854, which also lists 2 linked publications.
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 13 May 2026.