Authors (in order)

Schwellnus et al.,

(2021)

Petracek et al., (2021)

Petek et al., (2021)

Moulsen et al., (2021)

Martinez et al., (2021)

Krzywanski et al., (2021)

Hull et al., (2021)

Brito et al., (2021)

Number of participants

N = 45

N = 1

N = 3597

N = 3018

N = 789

N = 111

N = 147

N = 60

Ethnicity

Not mentioned

Not mentioned

White non-Hispanic (N = 2301),

Black (N = 983), White-hispanic (N = 110),

Mixed (N = 73),

Other (N = 91)

White non-Hispanic (N = 1922),

Black (N = 829),

White-hispanic (N = 87),

Mixed (N = 62),

Other (N = 80)

Not mentioned

All Caucasian

Not mentioned

White (N = 3),

African American (N = 36),

Other (N = 3)

Type of sport

Not mentioned

Track and cross-country athlete

Not mentioned

Not mentioned

Major League soccer (N = 70),

Major League baseball (N = 181),

National hockey league (N = 68),

National football league (N = 349),

National basketball association (N = 121)

Strength (N = 33),

Endurance (N = 29),

Team sports (N = 38),

Technical (N = 10)

Summer sport (N = 36),

Winter sport (N = 11)

American Football (N = 35),

Basketball (N = 13),

Vollleyball (N = 1),

Soccer (N = 2),

Swimming (N = 1),

Other (N = 2)