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Abstract Details

Abstract Title

Screeming for Risk of ACL Injuries in Youth Soccer Male Players

Abstract Theme

Sport medicine and injury prevention

Type Presentation

Oral presentation

Abstract Authors

Presenter LucianaAlmeida Ottoni de Luna Freire - federal university of juiz de fora (fisiotherapy) - BR
Diogo Carvalho Felício - federal university of juiz de fora (fisiotherapy) - BR

Presentation Details

Room: Venus        Date: 4 September        Time: 11:30:00        Presenter: Luciana Luna Freire

Abstract Resume

Background: Soccer is the world’s most popular sport with most players being younger than 18 years. Soccer is a high-intensity sport with frequent changes in movement, velocity, and
direction as well as high impacts and many situations of direct contact between players, which pose the risk of injury. Anterior cruciate ligament (ACL) injuries are among the most devastating
injuries a young athlete can sustain, they can mean the end of an athlete’s competitive career and they have been linked with negative long-term outcomes including chronic pain and osteoarthritis. A
deficiency in the neuromuscular control of the hip has been identified as a key risk factor for noncontact ACL, this deficiency will often manifest itself as a medial collapse of the knee (“dynamic
knee valgus”) during tasks involving hip and knee flexion. The aim of this study is screeming for ACL injuries risk in youth soccer players with bidimentional motion analysis.
Methods: This study is an observational, cross-sectional study. Participants were taught how to perform the dropjump task. They were instructed to drop down onto the ground from a
31-cm box and to immediately perform a maximum vertical jump. They were to keep their arms in the “stop position” (shoulders abducted 45° and elbows flexed 90°) to reduce momentum from arm swing. To
minimize learning effects, 1 practice trial of the drop-jump task were allowed. Following this, 3 consecutive drop-jump trials were conducted. The camera was set up on a tripod 150 cm off the ground
and 330 cm forward of the jumping box. The landing phase was defined as the period from foot contact to toe-off and was manually selected. The guidelines were as follows: “If the patella moves inwards
and ends up medial to the first toe, rate the individual as high risk,” or “If the patella lands in line with the first toe, rate the individual as low risk”.
Results: Developed with 81 youth athletes from 12 to 17 years old with mean of 15 (.± 1,9 ) From 81 participants 40 were identified as high risk for ACL injury, which means 49% of the
Conclusions: It is possible to conclude that screeming for ACL is important to develop a preventive training programme for those specific athletes, and in this way improve the
performance of the individual and the team.

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