Acute Hamstring Strains in Danish Elite Soccer - Prevention and Rehabilitation
Recruitment status was: Enrolling by invitation
|First Received Date ICMJE||November 9, 2007|
|Last Updated Date||November 9, 2007|
|Start Date ICMJE||January 2008|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE
||Number of acute hamstring strains [ Time Frame: one soccer season ]|
|Original Primary Outcome Measures ICMJE||Same as current|
|Change History||No Changes Posted|
|Current Secondary Outcome Measures ICMJE
||Number of ACL-injuries [ Time Frame: One soccer season ]|
|Original Secondary Outcome Measures ICMJE||Same as current|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Acute Hamstring Strains in Danish Elite Soccer - Prevention and Rehabilitation|
|Official Title ICMJE||Acute Hamstring Strains in Danish Elite Soccer - Prevention and Rehabilitation|
A common soft tissue injury in sports involving sprinting and jumping is the hamstring strain.
Not much evidence-based research has been carried out on prevention of hamstring strains.
Most studies suggest that hamstring strains occur during the later part of the swing phase when the player is sprinting. In this phase the hamstring muscles are working to decelerate knee extension - that is, the muscle develops tension while lengthening. This means that the muscles change from functioning eccentrically to concentrically. We hypothesize that it is during this rapid change from eccentric to concentric function that the muscles are most vulnerable to injuries, and that the injuries can be prevented by increasing the eccentric muscle strength in the hamstring.
This randomized clinical trial will examine the effect of a 10-week preseason strength-training program in Danish elite soccer. The strength-training program focuses on eccentric hamstring training.
60 elite teams (1200 soccer players) will be cluster-randomized to either ordinary training or ordinary training combined with eccentric hamstring strength training. The training group will start the training program in the pre-season (10 weeks) and continue the training once a week during the following season.
Suspected hamstrings strains during the season will be examined within 3 days using ultrasound. Ultrasound verified hamstring strains will be registered, and players will start a standardized rehabilitation program.
|Detailed Description||Not Provided|
|Study Type ICMJE||Interventional|
|Study Phase||Not Provided|
|Study Design ICMJE||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
|Intervention ICMJE||Other: Training
10-week eccentric hamstring muscle training
|Study Arms||Not Provided|
|Publications *||Petersen J, Hölmich P. Evidence based prevention of hamstring injuries in sport. Br J Sports Med. 2005 Jun;39(6):319-23. Review.|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Unknown status|
|Estimated Enrollment ICMJE||1000|
|Estimated Completion Date||March 2009|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
|Ages||18 Years and older (Adult, Senior)|
|Accepts Healthy Volunteers||Yes|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Listed Location Countries ICMJE||Not Provided|
|Removed Location Countries|
|NCT Number ICMJE||NCT00557050|
|Other Study ID Numbers ICMJE||H-A-2007-0062|
|Has Data Monitoring Committee||No|
|U.S. FDA-regulated Product||Not Provided|
|IPD Sharing Statement||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||Amager Hospital|
|Collaborators ICMJE||Not Provided|
|PRS Account||Amager Hospital|
|Verification Date||September 2007|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP