ClimberCRIMPERNCT06361654
Effect of Muscular Imbalance Between Flexors and Extensors of the Fingers and Wrist on Upper Limb Injuries in Climbers
An observational study of Climber, run by University Hospital, Rouen at 1 site in France.
Trial summary
Climbing is a booming sport with an increasing number of participants. When practicing this sport, there is a muscular imbalance between the flexor and extensor systems (especially in the fingers), with the flexors of the fingers exerting greater force than the extensors. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Climber
- What is being tested?
- The strength values of the flexors and extensors of the fingers and wrist will be measured using a dynamometer
- How many people
- 47 participants
- Where
- 1 siteFrance
- Study dates
- 25 Mar 2024to 1 Sep 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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: climber
Who may be able to join
None listed.
Who cannot join
- Declaration of a medically diagnosed upper limb injury at the time of testing;
- Presence of any pathology that prevents climbing or taking finger or wrist measurements;
- Volunteers for whom it is impossible to collect data by telephone.
Trial locations and contacts
1 site in 1 country.
deborah lebedieff contact
France1 site, 1 recruiting
- Recruiting
Rouen, University Hospital
Rouen, Normandy, 76031
timothee gillot, phd, 0232880671 ext. +33, timothee.gillot@chu-rouen.fr
About this study
Official title: Effect of Muscular Imbalance Between Flexors and Extensors of the Fingers and Wrist on Upper Limb Injuries in Climbers, a Longitudinal Study.
Climbing is a booming sport with an increasing number of participants. When practicing this sport, there is a muscular imbalance between the flexor and extensor systems (especially in the fingers), with the flexors of the fingers exerting greater force than the extensors. In addition, upper limb injuries, particularly the fingers, are very common.
The study will be carried out on club-licensed climbers, as they are better supervised. They will be recruited through requests sent to various clubs. The measurements will be taken during different climbing sessions, after the warm-up.
The study will include measurements on different climbers. Informed consent and personal data will be collected from the climbers before the measurements are taken. The strength values of the flexors and extensors of the fingers and wrist will be measured using a dynamometer. The climbers will then continue their usual training for 1 year. For 1 year after the measurements, the climbers will be contacted every month by telephone to collect the different injuries they may have suffered in relation to climbing, as well as the number of hours they have spent climbing in the past month. After 1 year, the annual number of hours of climbing and the annual number of injuries can be calculated for each climber. Injury is defined as any medically diagnosed lesion of the musculoskeletal system of the upper limb or pain that prevents the practice of a sport whose aetiology is climbing. These data are used to calculate the "athlete exposure" (A-E), i.e. the incidence of injury per 1000 hours of practice. As the study population is large, this allows for variations in exposure between subjects.
- Conditions
- Climber
- Being tested
- The strength values of the flexors and extensors of the fingers and wrist will be measured using a dynamometer
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
The strength values of the flexors and extensors of the fingers and wrist will be measured using a dynamometerOther
The measurements will be taken during different climbing sessions, after the warm-up.
The study will include measurements on different climbers. Informed consent and personal data will be collected from the climbers before the measurements are taken. The strength values of the flexors and extensors of the fingers and wrist will be measured using a dynamometer.
What is being measured
The primary outcome is the main question the study is designed to answer.
Athlete exposure
- Athlete exposure (A-E): the incidence of climbing-related upper limb injuries reported over 1000 climbing hours (declarative). The number of injuries and climbing hours will be collected by telephone every month for 1 year;
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 posted12 Apr 2024
- Study start25 Mar 2024
- Primary completion25 Mar 2025 (estimated)
- Study completion1 Sep 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for ClimberStudies of the same condition, open and under way.
- More trials run by University Hospital, RouenThe 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
- Cohort
- Time perspective
- Prospective
- Enrolment
- 47 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University Hospital, Rouen
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06361654
- Sponsor's protocol ID
- 2023/0135/OB
- Acronym
- CRIMPER
- Status last verified
- Mar 2024
- First submitted
- 22 Mar 2024
- Last updated
- 15 Apr 2024
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 15 Apr 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Muscular Imbalance Between Flexors and Extensors of the Fingers and Wrist on Upper Limb Injuries in Climbers, a Longitudinal Study.
- ClinicalTrials.gov ID
- NCT06361654
- Acronym / sponsor ID
- CRIMPER / 2023/0135/OB
- Conditions
- Climber
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 47 participants (estimated)
- Lead sponsor
- University Hospital, RouenUniversity, hospital or other
- Study start
- 25 Mar 2024 (actual)
- Primary completion
- 25 Mar 2025 (estimated)
- Study completion
- 1 Sep 2025 (estimated)
- First posted
- 12 Apr 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.
Climbing is a booming sport with an increasing number of participants. When practicing this sport, there is a muscular imbalance between the flexor and extensor systems (especially in the fingers), with the flexors of the fingers exerting greater force than the extensors. In addition, upper limb injuries, particularly the fingers, are very common.
The study will be carried out on club-licensed climbers, as they are better supervised. They will be recruited through requests sent to various clubs. The measurements will be taken during different climbing sessions, after the warm-up.
The study will include measurements on different climbers. Informed consent and personal data will be collected from the climbers before the measurements are taken. The strength values of the flexors and extensors of the fingers and wrist will be measured using a dynamometer. The climbers will then continue their usual training for 1 year. For 1 year after the measurements, the climbers will be contacted every month by telephone to collect the different injuries they may have suffered in relation to climbing, as well as the number of hours they have spent climbing in the past month. After 1 year, the annual number of hours of climbing and the annual number of injuries can be calculated for each climber. Injury is defined as any medically diagnosed lesion of the musculoskeletal system of the upper limb or pain that prevents the practice of a sport whose aetiology is climbing. These data are used to calculate the "athlete exposure" (A-E), i.e. the incidence of injury per 1000 hours of practice. As the study population is large, this allows for variations in exposure between subjects.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- climber
Key inclusion criteria (0 listed)
Key exclusion criteria (3 listed)
- Declaration of a medically diagnosed upper limb injury at the time of testing;
- Presence of any pathology that prevents climbing or taking finger or wrist measurements;
- Volunteers for whom it is impossible to collect data by telephone.
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 |
|---|---|---|
| The strength values of the flexors and extensors of the fingers and wrist will be measured using a dynamometerThe measurements will be taken during different climbing sessions, after the warm-up. The study will include measurements on different climbers. Informed consent and personal data will be collected from the climbers before the measurements are taken. The strength values of the flexors and extensors of the fingers and wrist will be measured using a dynamometer. | Other | – |
Primary outcome
Athlete exposure
Time frame: through study completion, an average of 1 year
- Athlete exposure (A-E): the incidence of climbing-related upper limb injuries reported over 1000 climbing hours (declarative). The number of injuries and climbing hours will be collected by telephone every month for 1 year;
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Apr 2024.
- 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. This study is not recruiting at the moment.
deborah lebedieff contact
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 Climber, run by University Hospital, Rouen at 1 site in France.
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 0 inclusion and 3 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: status not confirmed, as of the sponsor's last update on 15 Apr 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 France. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Timothée GILLOT, PhD (0232880671 ext. +33, timothee.gillot@chu-rouen.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Athlete exposure (time frame: through study completion, an average of 1 year). 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 15 Apr 2024.