2015
DOI: 10.1016/j.proeng.2015.07.195
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Laboratory Evaluation of Wireless Head Impact Sensor

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Cited by 34 publications
(36 citation statements)
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“…Nevins et al 30 reported that the XPatch had good agreement with PLA but underestimated PRA by more than 25%. The XPatch also has a significantly statistical correlation with the Head Impact Telemetry System (HITS) for the resultant linear (r = 0.44; p < 0.001) and rotational (r = 0.15; p < 0.001) accelerations and for the Head Impact telemetry severity profile (r = 0.34; p < 0.001).…”
Section: Methodsmentioning
confidence: 99%
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“…Nevins et al 30 reported that the XPatch had good agreement with PLA but underestimated PRA by more than 25%. The XPatch also has a significantly statistical correlation with the Head Impact Telemetry System (HITS) for the resultant linear (r = 0.44; p < 0.001) and rotational (r = 0.15; p < 0.001) accelerations and for the Head Impact telemetry severity profile (r = 0.34; p < 0.001).…”
Section: Methodsmentioning
confidence: 99%
“…The accelerometers used in this study have been reported to have a strong correlation with anterior-posterior translation (r 2 = 0.93), 38 a normalized root square error of 18% for PLA with an overprediction of 15g ± 7g, and 2500 ± 1200 rad/sec 2 for PRA. 38 Nevins et al 30 reported that the XPatch had good estimates of PLA but underestimated PRA by more than 25% and recorded more impacts than were visibly seen. If these studies were used to verify the magnitude and distribution of impacts to the head, then the cohort of players involved in this study may have recorded as few as 12 ± 10 impacts per player per game with a median resultant linear acceleration of 12g (IQR 10g-17g), and rotational accelerations of between 1882 rad/sec ) (corrected for underprediction).…”
Section: 513mentioning
confidence: 99%
“…The time history incorporated 3 axes (x = medial-lateral, y = anterior-posterior, z = vertical) of acceleration/deceleration and 3 axes of velocity. The XPatch was shown in one study 38 to have good agreement with peak linear acceleration (PLA) but was found to underestimate peak rotational acceleration (PRA) by more than 25%. In another study, 49 it was reported that the XPatch has a strong correlation for peak linear accelerations (PLA, r 2 = 0.93), with a normalized root square error of 18%, but may overpredict PLA and peak rotational accelerations (PRA) by 15g ± 7g and 2500 ± 1200 rad/ sec 2 , respectively.…”
Section: Methodsmentioning
confidence: 99%
“…The xPatch has a strong correlation with peak linear acceleration (PLA(g): r 2 = 0.93) with a normalised root square error of 18%, but may over predict PLA(g) and PRA(rad/s 2 ) by 15g ± 7g and 2,500 ±1,200 rad/s 2 , respectively [29]. The xPatch has also been reported [30] to have good agreement between the headform III and the recorded PLA(g), but can underestimate PRA(rad/s 2 ) by at least 25%. More recently it has been reported that the xPatch has a signi icant statistical correlation with the Head Impact Telemetry System (HITS) for PLA(g) (r = 0.144; p<0.001), PRA(rad/s 2 ) (r = 0.15; p<0.001) and Head Impact Telemetry severity pro ile (HITsp) (r = 0.34; p<0.001) [31].…”
Section: Instrumentationmentioning
confidence: 94%
“…The accuracy of the linear and rotational acceleration measurements has been reported to vary widely under different testing environments [29,30,57]. The PRA was found to underestimate in a study utilizing a non-helmeted anthropometric test device but, when utilizing cadaveric model with a helmet, it was reported that the xPatch overestimated PLA(g) and PRA(rad/s 2 ) when compared with a reference device mounted at the foramen magnum [57].…”
Section: Limitationsmentioning
confidence: 99%