Development, AdolescentNCT06318325
Growth Process and Development of the Musculoskeletal System in Young Gymnasts
An observational study of Development, Adolescent, run by University of Haifa at 1 site in Israel.
Trial summary
assessment of the musculoskeletal system will be performed twice a year, for three years of young gymnasts. Read more about this study
- Who is it for?
- Ages 9 to 16 years, women only
- Conditions the study is for
- Development, Adolescent
- What is being tested?
- examination
- How many people
- 274 participants
- Where
- 1 siteIsrael
- Study dates
- 1 Jan 2024to 15 Dec 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 9 to 16 years
- Women only
- Child
Study population: young female gymnasts training on a regular basis and competitive level
Who may be able to join
- training at least 4 times per week,
- a minimum of 16 hours per week, at a competitive level.
- The gymnasts exercised fully three months before the beginning of the study
- have not been absent more than three days from training due to pain, discomfort, or injury.
Who cannot join
- present injury causing pain
- missing training.
Trial locations and contacts
1 site in 1 country.
Israel1 site
The Academic college Levinsky-Wingate at the Wingate Institute
Netanya
About this study
Official title: Growth Process and Development of Muscle, Bone, and Tendon in Correlation With Injuries in Young Gymnasts During Adolescence
assessment of the musculoskeletal system will be performed twice a year, for three years of young gymnasts.
Read the detailed description
Aims: To examine the changes in the anatomical and morphological features in the skeleton of young female artistic and rhythmic gymnasts and follow the risk of injuries during the period of pubertal growth.
Methods: 200 gymnasts (100 rhythmic and 100 artistic) will participate. Measurements will be performed at the beginning and the end of each year, for three years. Each gymnast will be examined for the following: asked about her menarche, assessed by a physician for Tanner stages, and will answer the Triad-specific self-report questionnaire. Anthropometric measurements (height, weight, BMI), muscle strength (using hand-held dynamometer), joint range of motion (using goniometer), scoliosis, and Beighton test for hypermobility will be assessed. In addition, the gymnasts will be scanned by using three different ultrasounds: Bone age for the skeletal age, SOS for the bone properties, and ultrasound tissue characterization for the tendon structure. The gymnasts will be asked about their physical training history, frequency, and training intensity. Each gymnast will be asked whether she had pain or injuries during the period she has been training, as well as a physical and injuries evaluation that will be conducted by a physician.
Once a month a telephone follow-up with the trainer regarding any pain or injuries in the last month will be conducted.
- Conditions
- Development, Adolescent
- Being tested
- examination
- Keywords
- musculoskeletal, menarche, athlete
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
examinationDiagnostic test
examination of tendon, muscle joints and injuries
| Study group | Role | What they receive |
|---|---|---|
| gymnasts | gymnasts ages 9-16 years. All participants are of competitive level, each participating in at least four competitions per year Receives: Diagnostic Test: examination |
What is being measured
The primary outcome is the main question the study is designed to answer.
ultrasound tissue characterized
percentage of type 1,2,3,4 fibers within the tendon
Measured: baseline, twice a year for 3 years
muscle strength test
hand held dynamometer assessment of ankle, knee and hip muscles
Measured: baseline, twice a year for 3 years
range of motion
goniometer assessment for lower extremities joints
Measured: baseline, twice a year for 3 years
bone strength
tibia bone strength assessment using Sunlight MiniOmni Ultrasound Bone Sonometer
Measured: baseline, twice a year for 3 years
Bone Age
bone age of the radius bone using ultrasound for bone age
Measured: baseline, twice a year for 3 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Mar 2024
- Study start1 Jan 2024
- Primary completion15 Dec 2025
- Study completion15 Dec 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Development, AdolescentStudies 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
- 274 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Haifa
- Sponsor type
- University, hospital or other
- Collaborators
- The Academic college Levinsky-Wingate at the Wingate Institute, Netanya, Israel
- Responsible party
- Principal investigator, Gali Dar, University of Haifa
- Investigators
- Gali Dar, Principal investigator, University of Haifa
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06318325
- Sponsor's protocol ID
- ADINEGEV-2021_102
- Status last verified
- Jan 2026
- First submitted
- 12 Mar 2024
- Last updated
- 26 Jan 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 26 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Growth Process and Development of Muscle, Bone, and Tendon in Correlation With Injuries in Young Gymnasts During Adolescence
- ClinicalTrials.gov ID
- NCT06318325
- Acronym / sponsor ID
- ADINEGEV-2021_102
- Conditions
- Development, Adolescent
- Keywords
- musculoskeletal, menarche, athlete
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 274 participants (actual)
- Lead sponsor
- University of HaifaUniversity, hospital or other
- Collaborators
- The Academic college Levinsky-Wingate at the Wingate Institute, Netanya, Israel
- Study start
- 1 Jan 2024 (actual)
- Primary completion
- 15 Dec 2025 (actual)
- Study completion
- 15 Dec 2025 (actual)
- First posted
- 19 Mar 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.
assessment of the musculoskeletal system will be performed twice a year, for three years of young gymnasts.
Detailed description
Aims: To examine the changes in the anatomical and morphological features in the skeleton of young female artistic and rhythmic gymnasts and follow the risk of injuries during the period of pubertal growth.
Methods: 200 gymnasts (100 rhythmic and 100 artistic) will participate. Measurements will be performed at the beginning and the end of each year, for three years. Each gymnast will be examined for the following: asked about her menarche, assessed by a physician for Tanner stages, and will answer the Triad-specific self-report questionnaire. Anthropometric measurements (height, weight, BMI), muscle strength (using hand-held dynamometer), joint range of motion (using goniometer), scoliosis, and Beighton test for hypermobility will be assessed. In addition, the gymnasts will be scanned by using three different ultrasounds: Bone age for the skeletal age, SOS for the bone properties, and ultrasound tissue characterization for the tendon structure. The gymnasts will be asked about their physical training history, frequency, and training intensity. Each gymnast will be asked whether she had pain or injuries during the period she has been training, as well as a physical and injuries evaluation that will be conducted by a physician.
Once a month a telephone follow-up with the trainer regarding any pain or injuries in the last month will be conducted.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| gymnasts | – | Diagnostic Test: examinationgymnasts ages 9-16 years. All participants are of competitive level, each participating in at least four competitions per year |
Who may qualify
- Ages
- 9 to 16 years
- Sex
- Female only
- Age groups
- Child
- Study population
- young female gymnasts training on a regular basis and competitive level
Key inclusion criteria (4 listed)
- training at least 4 times per week,
- a minimum of 16 hours per week, at a competitive level.
- The gymnasts exercised fully three months before the beginning of the study
- have not been absent more than three days from training due to pain, discomfort, or injury.
Key exclusion criteria (2 listed)
- present injury causing pain
- missing training.
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 |
|---|---|---|
| examinationexamination of tendon, muscle joints and injuries | Diagnostic test | gymnasts |
Primary outcome
ultrasound tissue characterized
Time frame: baseline, twice a year for 3 years
percentage of type 1,2,3,4 fibers within the tendon
muscle strength test
Time frame: baseline, twice a year for 3 years
hand held dynamometer assessment of ankle, knee and hip muscles
range of motion
Time frame: baseline, twice a year for 3 years
goniometer assessment for lower extremities joints
bone strength
Time frame: baseline, twice a year for 3 years
tibia bone strength assessment using Sunlight MiniOmni Ultrasound Bone Sonometer
Bone Age
Time frame: baseline, twice a year for 3 years
bone age of the radius bone using ultrasound for bone age
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 26 Jan 2026.
- Individual participant dataSharing planned: Undecided
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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.
Gali Dar principal investigator
University of Haifa
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 Development, Adolescent, run by University of Haifa at 1 site in Israel.
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 4 inclusion and 2 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 26 Jan 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 Israel. 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?
ultrasound tissue characterized (time frame: baseline, twice a year for 3 years). 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 26 Jan 2026.