Table 2.
Results of the included studies on the association between the H:Q ratio and hamstring or ACL injury.
| Study | Type of ratio |
|||
|---|---|---|---|---|
| Conventional | Functional | Mixed | Other | |
| Hamstring injury | ||||
| 60°/s | ||||
| Bennell et al. (1998)37 | NS for H:Q < 0.60 | NS for H:Q < 0.60 | ||
| Cameron et al. (2003)39 | S for H:Q < 0.60, SP = 50% | |||
| S for H:Q > 0.66 SP = 100% | ||||
| Croisier et al. (2008)13 | Players with H:Q > 0.55–0.57 and/or 15% bilateral strength differences had 4.66 greater relative risk for injury | |||
| Croisier et al. (2008)13 | NS | NS | ||
| Dauty el al. (2016)3 | NS for H:Q < 0.47 | NS for H:Q < 0.80 | S for H:Q < 0.80, SE = 2.5%, SP 99% | |
| Dauty et al. (2018)33 | NS for H:Q < 0.47 or < 0.60 | ΝS | ||
| Dauty et al. (2020)34 | NS for H:Q < 0.80 or < 1.00 | |||
| Lee et al. (2018)35 | S for H:Q < 0.505, OR = 3.14 (95% CI:1.37–7.22) | NS | NS | |
| Orchard et al. (1997)38 | S for H:Q < 0.61, positive predictive value = 77.4% | |||
| Sugiura et al. (2008)40 | N/R | S | N/R | |
| Yeung et al. (2009)41 | ΝS | ΝS | ||
| Zvijac et al. (2013)42 | NS for H:Q < 0.60 | |||
| van Dyk et al. (2016)30 | NS | |||
| van Dyk et al. (2017)29 | NS | |||
| Others28,31,36,43 | ΝS | |||
| 120°/s | ||||
| Dauty et al. (2016)3 | NS for H:Q < 0.47 | NS for H:Q < 0.80 | ||
| 180°/s | ||||
| Bennell et al. (1998)37 | NS for H:Q < 0.60 | NS for H:Q < 0.60 | ||
| Dauty et al. (2016)3 | S for H:Q < 0.47, SE = 7% SP = 97% | |||
| Yeung et al. (2009)41 | S for H:Q < 0.60, (Hazard ratio = 17.4, 95%CI: 1.3–231.4) | NS | ||
| Fousekis et al. (2011)32 | NS for H:Q < 1.00 | |||
| Others31,38,43 | NS | |||
| 240°/s | ||||
| Lee et al. (2018)35 | S for H:Q < 0. 505, OR = 0.93 (95%CI: 0.89–0.98) | |||
| Dauty et al. (2016)3 | NS H:Q < 0.47 | |||
| Yeung et al (2009)41 | NS | NS | ||
| Others31,36 | NS | |||
| 300°/s | ||||
| van Dyk et al. (2016)30 | NS | |||
| van Dyk et al. (2017)29 | NS | |||
| Others31,38 | NS | |||
| ACL injury | ||||
| 60°/s | ||||
| Uhorchak et al. (2003)48 | NS | NS | ||
| Others45, 46, 47 | NS | |||
| 300°/s | ||||
| Myer et al. (2009)44 | NS | |||
Abbreviations: 95%CI = 95% confidence interval; ACL = anterior cruciate ligament; H:Q = hamstring-to-quadriceps; NS = non-significant; N/R = not reported; OR = odds ratio; S = significant; SE = sensitivity; SP = specificity.