- Title
- Video Analysis and Verification of Direct Head Impacts Recorded by Wearable Sensors in Junior Rugby League Players
- Creator
- Carey, Lauchlan; Terry, Douglas P.; McIntosh, Andrew S.; Stanwell, Peter; Iverson, Grant L.; Gardner, Andrew J.
- Relation
- Sports Medicine - Open Vol. 7, Issue 1, no. 66
- Publisher Link
- http://dx.doi.org/10.1186/s40798-021-00353-3
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2021
- Description
- Background: Rugby league is a high-intensity collision sport that carries a risk of concussion. Youth athletes are considered to be more vulnerable and take longer to recover from concussion than adult athletes. Purpose: To review head impact events in elite-level junior representative rugby league and to verify and describe characteristics of X-patchTM-recorded impacts via video analysis. Study Design: Observational case series. Methods: The X-patchTM was used on twenty-one adolescent players (thirteen forwards and eight backs) during a 2017 junior representative rugby league competition. Game-day footage, recorded by a trained videographer from a single camera, was synchronised with X-patchTM-recorded timestamped events. Impacts were double verified by video review. Impact rates, playing characteristics, and gameplay situations were described. Results: The X-patchTM-recorded 624 impacts ≥ 20g between game start and finish, of which 564 (90.4%) were verified on video. Upon video review, 413 (73.2%) of all verified impacts ≥ 20g where determined to be direct head impacts. Direct head impacts ≥ 20g occurred at a rate of 5.2 impacts per game hour; 7.6 for forwards and 3.0 for backs (range = 0–18.2). A defender’s arm directly impacting the head of the ball carrier was the most common event, accounting for 21.3% (n = 120) of all impacts, and 46.7% of all “hit-up” impacts. There were no medically diagnosed concussions during the competition. Conclusion: The majority (90.4%) of head impacts ≥ 20g recorded by the X-patchTM sensor were verified by video. Double verification of direct head impacts in addition to cross-verification of sensor-recorded impacts using a secondary source such as synchronised video review can be used to ensure accuracy and validation of data.
- Subject
- head impacts; rugby league; wearable sensors; accelerometer; video review
- Identifier
- http://hdl.handle.net/1959.13/1471468
- Identifier
- uon:48688
- Identifier
- ISSN:2199-1170
- Language
- eng
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