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Table 3 Video-verified impacts: location accuracy of direct and indirect impacts

From: Verifying Head Impacts Recorded by a Wearable Sensor using Video Footage in Rugby League: a Preliminary Study

  Total Direct impact Indirect impact
  x-patch™ (n) Video (n) Agreement (n) Accuracy (%) x-patch™ (n) Video (n) Agreement (n) Accuracy (%) x-patch™ (n) Video (n) Agreement (n) Accuracy (%)
Front 273 134 56 41.8 190 27 15 55.6 83 107 41 38.3
Side 264 582 228 39.2 194 498 189 38.0 70 84 39 46.4
Back 156 16 7 43.8 121 11 6 54.5 35 5 1 20
Top 39 0 0 0 31 0 0 0 8 0 0 0
Total 732 732 291 39.8 536 536 210 39.3 196 196 81 41.3