Effectiveness of a Novel Warm-up in Decreasing Risk Factors for ACL Injury in Female Youth Soccer Players

Study Overview
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Brief Summary
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There is a large number of young women who sustain serious knee injuries from playing soccer. Female athletes are at high risk of knee injuries from soccer than males. We will conduct a research project to assess the effect of a warm-up on changing some of the movement patterns thought to contribute to these serious knee injuries. It is hypothesized that a core position and control movement strategy (Core-PAC) group reduce biomechanical risk factors at the knee compared to a control after the training program.

Detailed Description
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There is a large number of young women who sustain serious knee injuries from playing soccer. Female athletes are at high risk of knee injuries from soccer than males. We will conduct a research project to assess the effect of a warm-up on changing some of the movement patterns thought to contribute to these serious knee injuries. A core position and control movement strategy (Core-PAC) may be one method of modifying high-risk movements such as side-cutting. The Core-PAC is a simple method of getting the centre of mass (COM) closer to the plant foot or base of support (BOS). Moving the COM closer to the BOS may bias joint loading to the sagittal rather than the frontal and transverse planes, which often occurs in female athletes and poses a risk for ACL injury. In this study, we will conduct a randomized controlled trial to compare a Core-PAC trained group to a control group for peak flexion angles and peak abduction moments at the knee during a side-cut and an unanticipated side-cut prior to kicking a soccer ball and a side-hop task after a six-week training program. It is hypothesized that a Core-PAC group would have greater peak flexion angles and lower peak abduction moments at the knee compared to a control after the training program.

Official Title
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The Effectiveness of a Novel Warm-up in Decreasing Risk Factors for Anterior Cruciate Ligament Injury in Female Youth Soccer Players

Conditions
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ACL Injury

Intervention / Treatment
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* Other: Core-PAC


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 14-17 years of age; have no injuries for six weeks prior to testing; have no medical problems preventing them from participating in the study. Exclusion Criteria: have a previous ACL injury or repair; have a back or lower limb injury that kept them from playing or training for greater than 30 days in the past year; presently using a supplemental exercise based program; have any medical or neurologic condition that would impair their ability to perform the tasks.

Ages Eligible for Study
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Minimum Age: 14 Years
Maximum Age: 17 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: CON group<br>Control Group underwent a standard soccer warm-up | Other: Core-PAC<br>* Core position and control movement strategy (Core-PAC): Do warm-up prior to 6 weeks of regular soccer training for peak flexion angles and peak abduction moments at the knee during a side-cut (SC) and an unanticipated side-cut (USC) prior to kicking a soccer ball and a side-hop (SH) task.<br>|
| Experimental: Core-PAC<br>Experimental took part in the Core position and control movement strategy (Core-PAC) warm-up | Other: Core-PAC<br>* Core position and control movement strategy (Core-PAC): Do warm-up prior to 6 weeks of regular soccer training for peak flexion angles and peak abduction moments at the knee during a side-cut (SC) and an unanticipated side-cut (USC) prior to kicking a soccer ball and a side-hop (SH) task.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Peak knee flexion angle and peak abduction moment | Intervention group will be instructed to move from the trunk first during a series of athletic tasks. The Control group will be instructed to move with their usual athletic movements during the same tasks. After 6 weeks of this training, subjects will be asked to return to the GF Strong Rehabilitation Center for biomechanical testing. | 6 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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ACL, Knee , Injury,