@article{Grimes_Arede_Drury_Thompson_Fernandes_2021, title={The effects of a sled push at different loads on 20 metre sprint time in well-trained soccer players}, volume={1}, url={https://journal.iusca.org/index.php/Journal/article/view/77}, DOI={10.47206/ijsc.v1i1.77}, abstractNote={<p>This study determined the effects of a single sled push at different loads on sprint performance in competitive male soccer players. Twenty male competitive outfield soccer players (age 19.6±1.3y, body mass 73.6±8.2kg) were split into experimental (n=10) and control groups. In the experimental group, 20m linear sprint time was measured immediately before and 5, 6 and 7minutes after the sled push with either 50 or 100% body mass. The control group performed the 20m sprints only. A repeated measures ANOVA comparing control and experimental groups revealed no effects of time, group or time by group interaction for either experimental condition (all <em>P</em>&gt;0.05). The repeated measures ANOVA compared the experimental conditions revealed effects of time (<em>P</em>=0.034) and group (<em>P</em>=0.002), but not time by group (<em>P</em>&gt;0.05). The effects sizes demonstrated within group effects on sprint time that were <em>small </em>to <em>moderate </em>(-0.26 to 0.71) and <em>trivial </em>to<em> small </em>(-0.31 to 0.09) for the 50% and 100% body mass condition, respectively. These findings demonstrate that a sled push has no significant effect on 20 m sprint time in competitive footballers. If coaches continue to prescribed a sled push before sprinting, a single 15 m push with 50% body mass could have positive benefits.</p&gt;}, number={1}, journal={International Journal of Strength and Conditioning}, author={Grimes, Nick and Arede, Jorge and Drury, Benjamin and Thompson, Steve and Fernandes, John}, year={2021}, month={Nov.} }