Healthy ChildrenHGS/HLSNCT07767656
Fine Motor Performance in School-aged Children
An observational study of Healthy Children, run by Cairo University.
Trial summary
The goal of this observational cross-sectional study is to investigate the relationship between core stability, hand grip strength, and handwriting performance in typically developing school-aged children aged 8 to 12 years. Read more about this study
- Who is it for?
- Ages 8 to 12 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy Children
- How many people
- 100 participants
- Where
- No sites listed yet
- Study dates
- 20 Sep 2026to 20 Mar 2027
- 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 8 to 12 years
- All sexes
- Healthy volunteers accepted
- Child
Study population: The study population will consist of typically developing school-aged children between 8 and 12 years of age. Participants of both sexes will be recruited according to the predefined inclusion and exclusion criteria. Children with neurological, musculoskeletal, visual, cognitive, or developmental disorders that could affect core stability, hand grip strength, or handwriting performance will be excluded. Written informed consent will be obtained from the parents or legal guardians of all participants before enrollment in the study.
Who may be able to join
- Children will be included in the study according to the following criteria:
- Typically developing children aged 8-12 years.
- Both boys and girls.
- Enrolled in primary school.
- Able to understand and follow simple verbal instructions.
- Able to read and write in English according to their educational level.
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- Regular school attendance.
- Children with a typical level of physical activity for their age and not participating in competitive athletic training programs.
- Written informed consent obtained from parents or legal guardians.
Who cannot join
- History of neurological, developmental, or musculoskeletal disorders affecting posture, upper limb function, or handwriting.
- Upper limb pain, deformity, fracture, or injury within the previous six months.
- Uncorrected visual or hearing impairment.
- Diagnosed developmental coordination disorder (DCD), autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD), intellectual disability, or specific learning disorder affecting handwriting.
- Previous surgery involving the upper limb or spine
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Official title: Core Stability and Fine Motor Performance in Typically Developing School-Aged Children
The goal of this observational cross-sectional study is to investigate the relationship between core stability, hand grip strength, and handwriting performance in typically developing school-aged children aged 8 to 12 years. The study aims to determine whether core stability is associated with upper extremity function and handwriting abilities during middle childhood.
The main questions the study aims to answer are:
Read more
- Is there a relationship between core stability and hand grip strength in typically developing school-aged children?
- Is there a relationship between core stability and handwriting performance in typically developing school-aged children?
Participants will undergo the following assessments:
- Assessment of core stability using the McGill core endurance tests.
- Measurement of hand grip strength using a hydraulic hand dynamometer.
Read the detailed description
this observational cross-sectional study aims to investigate the relationship between core stability, hand grip strength, and handwriting performance among typically developing school-aged children aged 8 to 12 years.
Core stability plays an essential role in maintaining postural control and providing a stable foundation for upper extremity movement. Adequate trunk stability is considered necessary for the effective execution of fine motor activities, including handwriting tasks. Hand grip strength is another important indicator of upper limb function and overall muscular performance. Despite the recognized importance of these factors, limited evidence is available regarding the relationship among core stability, hand grip strength, and handwriting performance in typically developing children.
The study will recruit typically developing children from schools located in the 6th of October educational district. Core stability will be evaluated using the McGill Core Endurance Test, which includes the trunk flexor endurance test, trunk extensor endurance test, and side bridge test. Hand grip strength will be measured using a hydraulic hand dynamometer, while handwriting performance will be assessed using the Handwriting Legibility Scale (HLS).
The findings of this study may contribute to a better understanding of the role of core stability in upper extremity function and handwriting performance and may help guide future assessment and intervention programs for school-aged children
- Conditions
- Healthy Children
- Keywords
- core stability, fine motor performance, hand grip strength, hand writing performance, typically developing children, school aged children
What is being measured
The primary outcome is the main question the study is designed to answer.
Core Stability Assessed by the McGill Core Endurance Tests
Core stability will be assessed using the McGill Core Endurance Tests, including the Trunk Flexor Endurance Test, Trunk Extensor Endurance Test, and Side Bridge Test. Each test will be recorded in seconds, with longer endurance times indicating better core stability.
Measured: baseline assessment
Hand Grip Strength Assessed by a Hydraulic Hand Dynamometer
Hand grip strength will be assessed using a hydraulic hand dynamometer. The maximum grip strength will be recorded for each hand in kilograms (kg).
Measured: baseline assessment
Handwriting Performance Assessed by the Handwriting Legibility Scale for Children in Elementary School (HLS CHES)
Handwriting performance will be assessed using the Handwriting Legibility Scale (HLS). The scale consists of five components, each rated from 1 to 5, with a total score ranging from 5 to 25. Higher scores indicate poorer handwriting performance. The total HLS score will be used to quantify handwriting legibility.
Measured: baseline assessment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Aug 2026
- Study start20 Sep 2026 (estimated)
- Primary completion20 Jan 2027 (estimated)
- Study completion20 Mar 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Healthy ChildrenStudies of the same condition, open and under way.
- More trials run by Cairo UniversityThe 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
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Cairo University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Omnia Mohamed Abbas Mobarak, Cairo University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07767656
- Sponsor's protocol ID
- CU-OM-1272026
- Acronym
- HGS/HLS
- Status last verified
- Aug 2026
- First submitted
- 6 Aug 2026
- Last updated
- 17 Aug 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Core Stability and Fine Motor Performance in Typically Developing School-Aged Children
- ClinicalTrials.gov ID
- NCT07767656
- Acronym / sponsor ID
- HGS/HLS / CU-OM-1272026
- Conditions
- Healthy Children
- Keywords
- core stability, fine motor performance, hand grip strength, hand writing performance, typically developing children, school aged children
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Cairo UniversityUniversity, hospital or other
- Study start
- 20 Sep 2026 (estimated)
- Primary completion
- 20 Jan 2027 (estimated)
- Study completion
- 20 Mar 2027 (estimated)
- First posted
- 17 Aug 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 goal of this observational cross-sectional study is to investigate the relationship between core stability, hand grip strength, and handwriting performance in typically developing school-aged children aged 8 to 12 years. The study aims to determine whether core stability is associated with upper extremity function and handwriting abilities during middle childhood.
The main questions the study aims to answer are:
- Is there a relationship between core stability and hand grip strength in typically developing school-aged children?
- Is there a relationship between core stability and handwriting performance in typically developing school-aged children?
Participants will undergo the following assessments:
- Assessment of core stability using the McGill core endurance tests.
- Measurement of hand grip strength using a hydraulic hand dynamometer.
Detailed description
this observational cross-sectional study aims to investigate the relationship between core stability, hand grip strength, and handwriting performance among typically developing school-aged children aged 8 to 12 years.
Core stability plays an essential role in maintaining postural control and providing a stable foundation for upper extremity movement. Adequate trunk stability is considered necessary for the effective execution of fine motor activities, including handwriting tasks. Hand grip strength is another important indicator of upper limb function and overall muscular performance. Despite the recognized importance of these factors, limited evidence is available regarding the relationship among core stability, hand grip strength, and handwriting performance in typically developing children.
The study will recruit typically developing children from schools located in the 6th of October educational district. Core stability will be evaluated using the McGill Core Endurance Test, which includes the trunk flexor endurance test, trunk extensor endurance test, and side bridge test. Hand grip strength will be measured using a hydraulic hand dynamometer, while handwriting performance will be assessed using the Handwriting Legibility Scale (HLS).
The findings of this study may contribute to a better understanding of the role of core stability in upper extremity function and handwriting performance and may help guide future assessment and intervention programs for school-aged children
Study design
- Observational model
- Other
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 8 to 12 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
- Study population
- The study population will consist of typically developing school-aged children between 8 and 12 years of age. Participants of both sexes will be recruited according to the predefined inclusion and exclusion criteria. Children with neurological, musculoskeletal, visual, cognitive, or developmental disorders that could affect core stability, hand grip strength, or handwriting performance will be excluded. Written informed consent will be obtained from the parents or legal guardians of all participants before enrollment in the study.
Key inclusion criteria (9 listed)
- Typically developing children aged 8-12 years.
- Both boys and girls.
- Enrolled in primary school.
- Able to understand and follow simple verbal instructions.
- Able to read and write in English according to their educational level.
Key exclusion criteria (5 listed)
- History of neurological, developmental, or musculoskeletal disorders affecting posture, upper limb function, or handwriting.
- Upper limb pain, deformity, fracture, or injury within the previous six months.
- Uncorrected visual or hearing impairment.
- Diagnosed developmental coordination disorder (DCD), autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD), intellectual disability, or specific learning disorder affecting handwriting.
- Previous surgery involving the upper limb or spine
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
Core Stability Assessed by the McGill Core Endurance Tests
Time frame: baseline assessment
Core stability will be assessed using the McGill Core Endurance Tests, including the Trunk Flexor Endurance Test, Trunk Extensor Endurance Test, and Side Bridge Test. Each test will be recorded in seconds, with longer endurance times indicating better core stability.
Hand Grip Strength Assessed by a Hydraulic Hand Dynamometer
Time frame: baseline assessment
Hand grip strength will be assessed using a hydraulic hand dynamometer. The maximum grip strength will be recorded for each hand in kilograms (kg).
Handwriting Performance Assessed by the Handwriting Legibility Scale for Children in Elementary School (HLS CHES)
Time frame: baseline assessment
Handwriting performance will be assessed using the Handwriting Legibility Scale (HLS). The scale consists of five components, each rated from 1 to 5, with a total score ranging from 5 to 25. Higher scores indicate poorer handwriting performance. The total HLS score will be used to quantify handwriting legibility.
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 17 Aug 2026.
- 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.
Questions about this trial
What is this clinical trial studying?
An observational study of Healthy Children, run by Cairo University.
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 9 inclusion and 5 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 17 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
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 omnia mohamed abbas, master (01150016181, manomohamed40316181@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Core Stability Assessed by the McGill Core Endurance Tests (time frame: baseline assessment). 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 17 Aug 2026.