Print Email Facebook Twitter Lead knee extension contributes to drag-flick performance in field hockey Title Lead knee extension contributes to drag-flick performance in field hockey Author Ladru, Bo Jane (Vrije Universiteit Amsterdam; Jheronimus Academy of Data Science) Langhout, Rob (Physiotherapy Dukenburg; International Olympic Committee Research Center for Prevention of Injury and Protection of Athlete Health; Academic Centre for Evidence based Sports medicine (ACES); Physiotherapy Utrecht Oost; Master Musculoskeletal Therapy (SOMT); Amsterdam UMC) Veeger, H.E.J. (TU Delft Biomechanical Engineering; TU Delft Biomechatronics & Human-Machine Control; Vrije Universiteit Amsterdam) Gijssel, Maarten (Vrije Universiteit Amsterdam; Jheronimus Academy of Data Science) Tak, M. (TU Delft (OLD) CRE Building & Installations; International Olympic Committee Research Center for Prevention of Injury and Protection of Athlete Health; Amsterdam UMC; Academic Centre for Evidence based Sports medicine (ACES)) Department Biomechanical Engineering Date 2019 Abstract Understanding the biomechanics of the drag-flick is important for refining the performance of this task in field hockey. The aim of this study was to determine whether the maximal knee angle and maximal angular velocity of the lead knee extension are associated with ball speed in elite drag-flick players. The kinematics of the drag flick was studied in 19 elite field-hockey players who performed 15 drag-flick shots each towards a target located 1.30 m high at optimal speed. A motion capture suit was used to capture full body drag-flick behaviour sampling at 240 Hz. Multiple regression analyses were used to study the association between both the maximal knee flexion angle and maximal angular velocity of the leading knee extension and ball speed. Significant positive associations were found between knee extension velocity and ball speed (R2 =.127, p <.001). A higher knee extension velocity resulted in higher ball speeds within the individual, without negatively affecting the accuracy. It is advised to train, within an elite drag-flick group, for higher knee extension speed to improve the drag-flick performance. Whether training to improve this parameter results in higher ball speeds should be subject of future studies. Subject biomechanicseliteHockeykinematicskneespeed To reference this document use: http://resolver.tudelft.nl/uuid:dfd8dc5e-40ec-4b4f-a8c9-efecd0e7defb DOI https://doi.org/10.1080/24748668.2019.1632581 Source International Journal of Performance Analysis in Sport, 19 (4), 556-566 Part of collection Institutional Repository Document type journal article Rights © 2019 Bo Jane Ladru, Rob Langhout, H.E.J. Veeger, Maarten Gijssel, M. Tak Files PDF Lead_knee_extension_contr ... hockey.pdf 1.77 MB Close viewer /islandora/object/uuid:dfd8dc5e-40ec-4b4f-a8c9-efecd0e7defb/datastream/OBJ/view