ErgonomicsNCT04758832
The Effect of Poorly Designed School Furniture on Children's Head and Scapulae Postures
An observational study of Ergonomics, run by Delta University for Science and Technology at 1 site in Egypt.
Trial summary
investigate the compatibility of school furniture design Read more about this study
- Who is it for?
- Ages 7 to 9 yearsHealthy volunteers can take part
- Conditions the study is for
- Ergonomics
- How many people
- 200 participants
- Where
- 1 siteEgypt
- Study dates
- 1 Mar 2017to 30 Apr 2019
- 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 7 to 9 years
- All sexes
- Healthy volunteers accepted
- Child
Study population: Two hundred and fifty-seven normal children were evaluated for eligibility; thirty-five children were excluded because they failed to fulfill the inclusion criteria and sixteen parents refused to enrolled in this study.
Who may be able to join
- had normal body mass index (ranged from 18.5 to 24.9 kg/ m2),
- The school furniture workstations used by all subjects were all of wooden flat desks and benches.
Who cannot join
- suffering from respiratory or heart problems
Trial locations and contacts
1 site in 1 country.
About this study
Official title: The Effect of Poorly Designed School Furniture on Children's Head and Scapulae Postures: A Cross Sectional Design
investigate the compatibility of school furniture design
- Conditions
- Ergonomics
What is being measured
The primary outcome is the main question the study is designed to answer.
weight
measured in kilograms
Measured: up to 24 weeks
height
measured in centimetres
Measured: up to 24 weeks
Body mass index (BMI)
It was calculated as the ratio of the subject's height (in meter) and weight (in kilogram) i.e. BMI= Weight/ Height2
Measured: up to 24 weeks
anthropometric measurement for child
The anthropometric measurement for child were measured in mm by Auto CAD analysis for recorded photographs from sitting position.it include:1) elbow seat height: Measured with the elbow flexed at 90°, as the vertical distance from the bottom of the tip of the elbow to the student's seated surface, 2) shoulder height: Measured as the vertical distance from the top of the shoulder at the acromion process to the student's sitting surface,3) upper limb length: Difference between the elbow height and shoulder height.
Measured: up to 24 weeks
anthropometric measurement for school furniture
The furniture dimensions were measured in mm by Auto CAD analysis for recorded photographs from sitting position.it include: 1) seat height: Measured as a distance from the floor to the highest point on the front of the seat, 2) seat depth: Measured from the back of the sitting surface of the seat to its front,3) backrest height: The vertical distance from the desk seat to the top edge of backrest, 4)desk- seat height: The vertical distance from the seat to the top of the front edge of the desk and 5) under surface of desk height: The vertical distance from the floor to the bottom of the front edge of the shelf under the writing surface..
Measured: up to 24 weeks
Secondary outcomes (3)
Correlation between educational furniture dimensions and the user body dimensions
the percentage of compatibility for the ergonomics design of school furniture were tested by using the following equations: Equation (1): Seat height to popliteal height (N +2) cos 30°≤ SH < (N + 2) cos 5° Where SH is seat height and N is popliteal height). Equation (2): Seat depth to the popliteal-buttock length 80%M≤ SD < 95%M Where SD is seat depth and M is popliteal-buttock length. Equation (3): Backrest height:60% H≤ BH < 80% H Where BH is backrest height and H is shoulder height (scapula height). the previous equations represent the correlation between arthopemeteric measurements for the child (the user) and anthropometric measurement for school furniture.The percentage of matching and dis-matching school furniture calculated.
Measured: through study completion, an average of 1 year.
Head postures (angles)
Auto CAD program (version 2013) used to determine head postures (angles). 1) Head flexion angle: Line of canthus to tragus with respect to vertical (measured from vertical above intersect). 2) Neck flexion angle : Line of tragus to C7 with respect to vertical (measured from vertical above intersect)
Measured: through study completion, an average of 1 year.
scapular postures (displacement and elevation).
Auto CAD program (version 2013) used to determine scapular postures (displacement and elevation in mm). 1) Scapula displacement: Horizontal distance between markers at C7 and the anterior border of the acromion (measured in mm), 2)Scapula elevation: Vertical distance between markers at C7 and the anterior border of the acromion.
Measured: through study completion, an average of 1 year.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Feb 2021
- Study start1 Mar 2017
- Primary completion30 Apr 2019
- Study completion30 Apr 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for ErgonomicsStudies 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
- Other
- Time perspective
- Retrospective
- Enrolment
- 200 participants (actual)
Sponsor and investigators
- Lead sponsor
- Delta University for Science and Technology
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Amira Hussin Hussin Mohammed, Delta University for Science and Technology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04758832
- Sponsor's protocol ID
- P.T.REC/012/003029
- Status last verified
- Feb 2021
- First submitted
- 6 Feb 2021
- Last updated
- 17 Feb 2021
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: will be shared at December 2021
Study at a glance
From the registry record, last updated by the sponsor on 17 Feb 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Poorly Designed School Furniture on Children's Head and Scapulae Postures: A Cross Sectional Design
- ClinicalTrials.gov ID
- NCT04758832
- Acronym / sponsor ID
- P.T.REC/012/003029
- Conditions
- Ergonomics
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 200 participants (actual)
- Lead sponsor
- Delta University for Science and TechnologyUniversity, hospital or other
- Study start
- 1 Mar 2017 (actual)
- Primary completion
- 30 Apr 2019 (actual)
- Study completion
- 30 Apr 2019 (actual)
- First posted
- 17 Feb 2021 (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.
investigate the compatibility of school furniture design
Study design
- Observational model
- Other
- Time perspective
- Retrospective
Who may qualify
- Ages
- 7 to 9 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
- Study population
- Two hundred and fifty-seven normal children were evaluated for eligibility; thirty-five children were excluded because they failed to fulfill the inclusion criteria and sixteen parents refused to enrolled in this study.
Key inclusion criteria (2 listed)
- had normal body mass index (ranged from 18.5 to 24.9 kg/ m2),
- The school furniture workstations used by all subjects were all of wooden flat desks and benches.
Key exclusion criteria (1 listed)
- suffering from respiratory or heart problems
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
weight
Time frame: up to 24 weeks
measured in kilograms
height
Time frame: up to 24 weeks
measured in centimetres
Body mass index (BMI)
Time frame: up to 24 weeks
It was calculated as the ratio of the subject's height (in meter) and weight (in kilogram) i.e. BMI= Weight/ Height2
anthropometric measurement for child
Time frame: up to 24 weeks
The anthropometric measurement for child were measured in mm by Auto CAD analysis for recorded photographs from sitting position.it include:1) elbow seat height: Measured with the elbow flexed at 90°, as the vertical distance from the bottom of the tip of the elbow to the student's seated surface, 2) shoulder height: Measured as the vertical distance from the top of the shoulder at the acromion process to the student's sitting surface,3) upper limb length: Difference between the elbow height and shoulder height.
anthropometric measurement for school furniture
Time frame: up to 24 weeks
The furniture dimensions were measured in mm by Auto CAD analysis for recorded photographs from sitting position.it include: 1) seat height: Measured as a distance from the floor to the highest point on the front of the seat, 2) seat depth: Measured from the back of the sitting surface of the seat to its front,3) backrest height: The vertical distance from the desk seat to the top edge of backrest, 4)desk- seat height: The vertical distance from the seat to the top of the front edge of the desk and 5) under surface of desk height: The vertical distance from the floor to the bottom of the front edge of the shelf under the writing surface..
3 secondary outcomes
Correlation between educational furniture dimensions and the user body dimensions
Time frame: through study completion, an average of 1 year.
Head postures (angles)
Time frame: through study completion, an average of 1 year.
scapular postures (displacement and elevation).
Time frame: through study completion, an average of 1 year.
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 17 Feb 2021.
- Individual participant dataSharing planned: Yes. will be shared at December 2021
Related trials for Ergonomics
RecruitingObservational study
Ergonomic Evaluation of Microscopic Ear Surgery With Exoskeleton: A Single Site Non-blinded Study
Muskuloskeletan Pain
RecruitingObservational study
Ergonomic Evaluation of Exoskeleton Use in Transoral, Endoscopic, and Transcervical ENT Surgery
Muskuloskeletan Pain
Enrolling by invitationObservational study
A Study of VAX-ID® 2200, a New Device for Intradermal Injections
Sharps Injuries
Recruiting
Surgical Ergonomics in OBGYN
Current OBGYN Attending, Resident, or Fellow at University Hospitals
RecruitingObservational study
Musculoskeletal Discomfort and Ergonomic Factors in Midwifery Students
Musculoskeletal Discomfort, Ergonomic Risk Perception
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 Ergonomics, run by Delta University for Science and Technology at 1 site in Egypt.
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 2 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 17 Feb 2021. 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 Egypt. 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?
weight (time frame: up to 24 weeks). 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 17 Feb 2021.