Kinetic asymmetries between forward and drop jump landing tasks

Abstract Landing asymmetry is a risk factor for knee anterior cruciate ligament injury. The aim of this study was to identify kinetic asymmetries in healthy recreational athletes performing different jump-landing techniques. Twelve recreational athletes engaged in regular training underwent kinetic evaluation using two 3D force plates and were analyzed for: (a) three-dimensional peak forces, (b) time to peak vertical force, and (c) initial phase asymmetries. All data were collected during performance of unilateral and bilateral trials of forward and drop jump tasks. Forward jump-landing tasks elicited greater kinetic asymmetry than drop-landing tasks. Regardless of jump-landing technique, the preferred leg experienced higher forces than the non-preferred leg. The initial landing phase showed more kinetic asymmetries than the later phase when peak vertical forces occur. It was concluded that when screening athletes for kinetic asymmetries that may predispose them to injury, forward jump-landing tasks and the early landing phase might show more kinetic asymmetries than drop jump-landing tasks and the late landing phase, respectively.Resumo Assimetrias durante a aterrissagem de tarefas de salto são um fator de risco para lesão de ligamento cruzado anterior do joelho. O objetivo deste estudo foi identificar assimetrias cinéticas em atletas recreacionais saudáveis, enquanto realizavam diferentes tarefas de salto e aterrissagem. Doze atletas recreacionais que treinavam regularm...
Source: Revista Brasileira de Cineantropometria e Desempenho Humano - Category: Sports Medicine Source Type: research