A Review of Instrumented Equipment to Investigate Head Impacts in Sport

Table 2

X2 X-Patch studies of athletes during training and games.

Study	Season(s)	Sport	Level (age)	Gender	Players	Impacts	Concussions
Kerr et al. [87]	2014	American football	Youth (8–15 years)	M	70	7478	6
Swartz et al. [88]	2014-2015	American football	Collegiate	M	50	Not reported	Not reported
McCuen et al. [89]	Not reported	Soccer	High school, collegiate	F	43	Not reported	0
Morrison et al. [90]	2015	American football	Collegiate	M	10	Not reported	0
Stucker [91]	Not reported	Soccer	Collegiate	F	25	13,479	0
Cummiskey [85]	2013	American football	High school	M	15	231	0
King et al. [92]	2015	Rugby	Youth (8-9 years)	M	14	721	3
Svaldi et al. [93]	Not reported	Soccer	High school	F	14	Not reported	0

Number of recorded impacts that surpass a predefined minimum linear acceleration threshold. Helmetless training drills.