Tackle Technique and Changes in PlayerloadTM During a Simulated Tackle: An Exploratory Study

Abstract

<p>In collision sports, the tackle has the highest injury incidence, and is key to a successful performance. Although the contact load of players has been measured using microtechnology, this has not been related to tackle technique. The aim of this study was to explore how <i>PlayerLoad^TM</i> changes between different levels of tackling technique during a simulated tackle. Nineteen rugby union players performed twelve tackles on a tackle contact simulator (n = 228 tackles). Each tackle was recorded with a video-camera and each player wore a Catapult OptimEyeS5. Tackles were analysed using tackler proficiency criteria and split into three categories: Low scoring(≤5 Arbitrary units (AU), medium scoring(6 and 7AU) and high scoring tackles(≥8AU). High scoring tackles recorded a higher <i>PlayerLoad^TM</i> at tackle completion. The <i>PlayerLoad^TM</i> trace was also less variable in the high scoring tackles. The variability in the <i>PlayerLoad^TM</i> trace may be a consequence of players not shortening their steps before contact. This reduced their ability to control their movement during the contact and post-contact phase of the tackle and increased the variability. Using the <i>PlayerLoad^TM</i> trace in conjunction with subjective technique assessments offers coaches and practitioners insight into the physical-technical relationship of each tackle to optimise tackle skill training and match preparation. </p>