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. 2022 Apr 20;4:837643. doi: 10.3389/fspor.2022.837643

Table 2.

Study characteristics of the reviewed literature.

N
Athlete gender Female 1
Male 8
Mixed 10
Not reported 5
Athlete age Child (3–5) -
Youth (6–11) -
Adolescent (12–18) 5
Adult (19+) 4
Mixed youth and adolescent -
Mixed adolescent and adult 3
Mixed youth, adolescent and adult 2
Not reported 10
Sports Boxing 1
Football 7
Ice hockey 1
Soccer 1
Mixed 11
Not reported 3
Region sample is recruited from North America 22
Europe 1
Not reported 1
Sample size <20 -
20–50 10
51–100 5
101–200 2
201–500 1
>501 2
Not reported 4