| Registry | NCT06486090 |
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| Status | Completed |
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| Phase | Not applicable |
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| Study type | Interventional; randomized, parallel, masking: single, prevention |
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| Enrollment | 2954 (Actual) |
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| Sponsor | Norwegian School of Sport Sciences (Other); collaborators: Linkoeping University, University of Bath, Norwegian Olympic Federation, Oslo, Norway, The Norwegian Football Federation, The Norwegian Handball Federation |
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| Conditions | Sports Injury |
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| Interventions | #Utviklingsklar (Behavioral) |
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| Dates | start 2024-05-07, primary completion 2025-11-09, completion 2025-11-30, first posted 2024-07-03, last updated 2025-12-17 |
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| Locations | 6 sites in Norway |
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Related Papers Related Patents Related Grants Related Experts
All trials for Sports Injury All trials of #Utviklingsklar
-Summary
The majority of injuries among Norwegian youth occur in sports. The purpose of the project is to conduct an effect and process evaluation of the intervention #Utviklingsklar, an injury-preventive club-based intervention in youth handball and football. Central to the evaluation is whether the intervention influences the occurrence of new and recurring injuries through changed coaching practices (injury prevention warm-up, strength training, and management of players with pain and injuries). Over one season, participants from 30 clubs in youth handball and football respectively will participate in two cluster-randomized studies. Coaches and club leaders implement #Utviklingsklar and create plans and practices for injury prevention. The control clubs train as usual. Players report injuries. An additional handball and football club are followed up with observation and interviews in a qualitative part of the process evaluation. The project provides knowledge about how injuries and health in the ¾ of Norwegian youth who participate in organized sports are affected by interventions aimed at club and coaching practices.
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+Arms and interventions
| Arm | Type | Interventions | Description |
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| #Utviklingsklar | Experimental | Behavioral: #Utviklingsklar | The intervention consists of 1) an e-learning course, 2) a workshop to create plans and practices for injury-prevention, 3) a mid-season meeting |
| Control | No intervention | | Practice as usual, which may include other injury-preventive coaching practices |
- #Utviklingsklar (Behavioral): The intervention consists of 1) an e-learning course, 2) a workshop to create plans and practices for injury-prevention, 3) a mid-season meeting
+Outcome measures
Primary outcomes
- Oslo Sports Trauma Research Center Questionnaire on Health Problems (OSTRC-H2) [Average of biweekly reports over 1 sports season (estimated to 32 weeks)]: Weekly injury severity score (0 best - 100 worst)
Secondary outcomes
- Sudden and gradual onset injuries [1 sports season (estimated to 32 weeks)]: Weekly injury severity score during the match season for sudden and gradual onset injuries
- Injury location [1 sports season (estimated to 32 weeks)]: Weekly injury severity score during the match season for lower leg, ankle/foot, knee, shoulder (handball), thigh (football), hip/groin (football), lumbosacral (football) and head (football) injuries
- Injury location for sudden onset injuries [1 sports season (estimated to 32 weeks)]: weekly injury severity score during the match season for sudden onset lower leg, ankle/foot, knee, shoulder (handball), thigh (football), hip/groin (football), and lumbosacral (football) injuries
- Injury location gradual onset injuries [1 sports season (estimated to 32 weeks)]: Weekly injury severity score during the match season for gradual-onset lower leg, ankle/foot, knee, shoulder (handball), thigh (football), hip/groin (football), and lumbosacral (football) injuries
- Injury burden [1 sports season (estimated to 32 weeks)]: Defined as the sum of injury severity score divided by the sum of exposure (per 1000 hours), where the sums are over team and over match season. The unit of analysis for burden is thus team and not player.
- Sports Injury Preventive Behavior Questionnaire (construct scores 0 worst - 1 best) [Baseline, midseason and post season (about 32 weeks)]: The aggregated construct scores for the determinants 1) risk perception, 2) intention, 3) outcome expectancies, 4) action self-efficacy, 5) maintenance self-efficacy, 6) coping self-efficacy, 7) recovery self-efficacy, 8) action plans 9) coping plans and 10) club social support
- Injury-preventive coaching practices [Baseline and post season (about 32 weeks)]: The injury-preventive coaching practice outcomes consist of:
1. The change in the extent to which teams complete warm-up as described in the intervention from baseline to end-of season.
2. The change in the extent to which teams complete strength training as described in the intervention from baseline to end-of season.
3. The change in the extent to which players with pain or injuries receive guidance on medical care from baseline to end-of season.
4. The change in the extent to which training and match participation is facilitated for players with pain or injuries from baseline to end-of season.
Other outcomes
- Fidelity - workshop completion checklist [At workshop (about 1-2 weeks before sports season)]
- Fidelity - Midseason meeting checklist [Midseason (about 16 weeks)]
- Dose - completion of e-learning [Before workshop (about 1-2 weeks before sports season)]
- Dose - workshop attendance checklist [At workshop (about 1-2 weeks before sports season)]
- Dose - Midseason meeting checklist [Midseason (about 16 weeks)]
+Eligibility
Sex: All, ages: 12 Years to 100 Years, accepts healthy volunteers
Inclusion criteria:
-Clubs are eligible for participation if they are able to participate with one club leader, 2-6 teams, and a minimum of one coach from each of the participating teams
Exclusion criteria:
* Players under the age of 12
* Coaches under the age of 16
+Locations (6)
| Facility | City | Country | Status |
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| Hordaland Fotballkrets | Bergen | Norway | |
| Håndballregion Øst | Oslo | Norway | |
| Oslo Fotballkrets | Oslo | Norway | |
| Akershus Fotballkrets | Strømmen | Norway | |
| Håndballregion Nord | Trondheim | Norway | |
| Trøndelag Fotballkrets | Trondheim | Norway | |
+Study documents
+Investigators
- Hege Grindem, Principal investigator, Oslo Sports Trauma Research Center