Wearable microtechnology can accurately identify collision events during professional rugby league match-play

Microtechnology can identify 97.6% of collision events during rugby league match-play. The typical error associated with measuring contact events can be reduced to 7.8%, with accuracy (92.7%) and specificity (91.7%) improving, when low-intensity (<1 PlayerLoad AU) and short duration (<1 s) collision reports are excluded. This provides practitioners with a measurement of contact workload during professional rugby league matches.