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Wearable sensors may overestimate number of head impact events in sports

October 30, 2017

Results published in The American Journal of Sports Medicine showed head impact events in sports may be substantially overestimated by existing wearable sensor technologies.

Researchers measured head impact counts in 30 male and 35 female high school lacrosse players with GForceTracker (GForceTracker Inc.) sensors and X-Patch sensors (X2 Biosystems), respectively. Accelerometer data were time synchronized with simultaneous game video, and researchers compared head impact counts with video recordings. Researchers considered a head impact event as verified if the linear acceleration was 20 g or greater, the player was identified on the field, the player was in camera view and the head impact mechanism could be clearly identified.

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