Table 2 Characteristics of included injury studies

Bagherifard et al. (2018) [1]

127 non-professional athletes with ACL injury (13F, 113 M), 90 (11F, 79 M) non-ACL injured patients

27.8 ± 6.1 and 28.9 ± 6.3, respectively

Not reported

Level III

Bedi et al. (2016) [3]

34 injured National Football League players; 290 uninjured National Football League players

Not reported

Not reported

Level IV

Budinski et al. (2016) [11]

60 active ACL-injured males (uninjured limb control)

24.86 (range 15–46 years)

 < 6 months

Level III

Daneshmandi et al. (2012) [12]

20 injured females, 20 uninjured females

24.9 ± 5.8 and 24.8 ± 5.6, respectively

2 years

Level III

Gomes et al. (2008) [16]

50 injured male soccer athletes, 50 injured male soccer controls

28.1 ± 5.7 and 23.3 ± 5.4, respectively

Not reported

Level III

Hertel et al. (2004) [17]

20 ACL injured (10F, 10 M), 20 uninjured controls (10F, 10 M)

20.7 ± 1.4 and 20.4 ± 1.2, respectively

3–84 months

Level III

Kramer et al. (2007) [28]

33 ACL injured females, 33 female controls

21 ± 2.1 and 19.6 ± 1.3, respectively

5 years

Level III

Lopes et al. (2016) [31]

45 non-contact ACL injured males, 35 contact ACL injured males

Aged 18–40

 < 6 months

Level III

Lopes et al. (2017) [32]

41 male ACL-injured patients, 39 male uninjured patients

Aged 20–40

Not reported

Level III

Tainaka et al. (2014) [48]

44 ACL injured (21F, 23 M), 123 healthy controls (49F, 74 M)

Aged 13–17

Several weeks

Level III

VandenBerg et al. (2017) [49]

25 ACL-injured (12F, 13 M) and 25 control patients (12F, 13 M)

22.8 ± 7.2 and 24.5 ± 7.9, respectively

Within 3 months post-injury

Level III