Influence of drill type and unit fitting on accelerometer derived loads in rugby league training

Abstract

<p><b>Background:</b> The high sampling rate (100 Hz) of tri-axial accelerometers within microtechnology devices, means poorly fitted devices may increase incidental unit movement, resulting in increased variability and decreased sensitivity of accelerometer-derived loads. Whilst accelerometer loads have demonstrated moderate-high test-retest reliability (CV = 5.9%) during treadmill running, there is no information examining accelerometer-derived loads within collision sport activities. Aims of this study therefore were to determine the relationship between drill type (i.e. physical output) and accelerometer loads during various team-sport activities, and examine the influence of unit fitting on these loads.</p>