Leistenverletzungen im Nachwuchsfußball - wie biomechanische Risikofaktoren und das pubertäre Längenwachstum zusammenhängen

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Groin injuries are a common problem in many sports and in soccer specifically. Nevertheless, the underlying mechanisms are not well understood. The same is true for the increasing injury incidence, which occurs during the adolescent growth spurt. This work aimed to fill these two knowledge gaps. Therefore, four studies with a total of 105 participants were conducted. 3D motion analysis, combined with musculoskeletal modelling, was used as the main method. Depending on the study specific research questions, this main method was enhanced with other methods like EMG or dynamometry. The studies I and III were able to show that inside passing and changes of direction, both contribute to the risk of suffering a groin injury. Responsible for this are high amounts of eccentric contraction during both movements, sometimes combined with fast muscle lengthening. In the second and fourth study, it was shown that the growth during puberty increases the injury risk in general, but also specifically for the two previously investigated movements. Between the age groups of study II, the force needed to perform an inside pass, increased rapidly. This is triggered by a fast increase of the bodysegements’ inertial properties during the adolescent growth spurt. The musculoskeletal system is not able to adapt to this
increase appropriately and is therefore more susceptible to injuries during the adaptation process. However, it remains unclear if the phase of the fastest growth PHV additionally increases the injury risk due to changes in movement techniques. Although study IV found evidence towards this idea, the actual influence of PHV remains unanswered. Regarding the sport practice, the results indicate that injury prevention for adults in the form of specific strength of the adductor muscles is needed and should play a bigger part during training. In adolescent training this has to be treated with caution. Here, strength training
should be used to prepare the athletes towards the increasing loads during the adolescent growth spurt. Increasing the training load during the growth spurt is discouraged to avoid an additional increase of the injury risk.
Original languageGerman
Place of PublicationKöln
PublisherDeutsche Sporthochschule Köln
Number of pages97
Publication statusPublished - 09.07.2021

ID: 6084848

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