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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-patchâ„¢ (n)

Video (n)

Agreement (n)

Accuracy (%)

x-patchâ„¢ (n)

Video (n)

Agreement (n)

Accuracy (%)

x-patchâ„¢ (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