Supplementary Table 5. Modified Grading of Recommendations Assessment, Development and Evaluation (GRADE) assessment.
Hop test measure Included
studies: n		 Study
Limitations b		 Inconsistency c Indirectness d Imprecision e Reporting
Bias f		 Level of
confidence		 Summary of findings g
Return to sports
Single-leg hop for distance
LSI ≥ 90% 16 x √ x x √ Low ▲
Greater absolute values of uninvolved limb 2 √ √ x √ √ Inconsistent ◆
Greater absolute values of involved limb 2 √ √ x √ √ Inconsistent ◆
Greater height-normalized values of uninvolved limb 1 x NA x √ √ Limited ●
Greater height-normalized values of involved limb 3 x √ x x √ Inconsistent ◆
Greater body mass-normalized values of uninvolved limb 1 x NA x √ √ Limited ●
Greater body mass-normalized values of involved limb 1 x NA x √ √ Limited ●
Greater side-to-side difference 1 x NA x x √ Limited ▲
Triple hop for distance
LSI ≥ 90% 7 x √ x x √ Low ●
Greater absolute values of uninvolved limb 1 √ NA x x √ Limited ▲
Greater absolute values of involved limb 1 √ NA x x √ Limited ▲
Greater height-normalized values of uninvolved limb 1 x NA x x √ Limited ▲
Greater height-normalized values of involved limb 2 √ √ x √ √ Inconsistent ◆
Triple crossover hop for distance
LSI ≥ 90% 7 x √ x x √ Low ▲
Greater height-normalized values of uninvolved limb 1 x NA x x √ Limited ▲
Greater height-normalized values of involved limb 1 x NA x x √ Limited ▲
6-meter timed hop
LSI ≥ 90% 4 x √ x x √ Low ●
Greater absolute values of involved limb 1 √ NA x √ √ Limited ●
Side hop
LSI ≥ 90% 2 x x x √ √ Low ●
Greater absolute values of uninvolved limb 1 x NA x √ √ Limited ▲
Greater absolute values of involved limb 1 x NA x √ √ Limited ▲
Greater height-normalized values of uninvolved limb 1 x NA x √ √ Limited ●
Greater height-normalized values of involved limb 1 x NA x √ √ Limited ●
Balance front hop
LSI ≥ 90% 1 x NA x √ √ Limited ●
Balance side hop
Greater absolute values of involved limb 2 x x x √ √ Low ●
Bipedal drop vertical jump
LSI ≥ 90% 2 x x x √ √ Low ●
Bipodal countermovement jump
LSI ≥ 90% 1 x NA x √ √ Limited ●
Single-leg drop vertical jump
LSI ≥ 90% 1 x NA x x √ Limited ▲
Single-leg vertical jump
LSI ≥ 90% 1 x x x x √ Limited ▲
Greater body mass-normalized values of uninvolved limb 1 x NA x √ √ Limited ●
Greater body mass-normalized values of involved limb 1 x NA x √ √ Limited ●
Square hop
LSI ≥ 90% 1 x NA x √ √ Limited ●
Hop test battery
3 x √ x x √ Inconsistent ◆
Reinjury
Single-leg hop for distance
LSI ≥ 90% 16 x x x √ x Moderate ●
Greater absolute values of uninvolved limb 2 x x x √ √ Low ●
Greater absolute values of involved limb 3 x x x √ √ Low ●
Greater height-normalized values of uninvolved limb 2 x x x √ √ Low ●
Greater height-normalized values of involved limb 5 x x x √ √ Low ●
Triple hop for distance
LSI ≥ 90% 9 x x x x √ Moderate ▼
Greater absolute values of uninvolved limb 2 √ x x √ √ Very low ●
Greater absolute values of involved limb 2 √ x x √ √ Very low ●
Greater height-normalized values of uninvolved limb 2 x √ x √ √ Inconsistent ◆
Greater height-normalized values of involved limb 3 x √ x √ √ Inconsistent ◆
Triple crossover hop for distance
LSI ≥ 90% 7 x x x √ √ Low ●
Greater height-normalized values of uninvolved limb 1 x NA x √ √ Limited ●
Greater height-normalized values of involved limb 1 x NA x √ √ Limited ●
6-meter timed hop
LSI ≥ 90% 5 x x x √ √ Low ●
Greater absolute values of involved limb 1 √ NA x √ √ Limited ●
Side hop
LSI ≥ 90% 3 x x x x √ Moderate ●
Greater absolute values of uninvolved limb 3 x √ x x √ Inconsistent ◆
Greater absolute values of involved limb 3 x √ x x √ Inconsistent ◆
Greater height-normalized values of uninvolved limb 1 x NA x x √ Limited ▼
Greater height-normalized values of involved limb 1 x NA x x √ Limited ▼
5-jump
Greater absolute values of both limbs 1 x NA x x √ Limited ▼
Greater height-normalized values of both limbs 1 x NA x x √ Limited ▼
Single-leg countermovement jump
LSI ≥ 90% 1 x NA x √ √ Limited ●
Greater absolute values of involved limb 1 x NA x x √ Limited ●
Single-leg drop jump
LSI ≥ 90% 1 x NA x √ √ Limited ●
Greater absolute values of involved limb 2 x x x √ √ Low ●
Greater absolute values of uninvolved limb 1 x NA x √ √ Limited ●
Single-leg vertical jump
LSI ≥ 90% 3 x √ x x √ Low ●
Greater height-normalized values of uninvolved limb 1 x NA x √ √ Limited ●
Greater height-normalized values of involved limb 1 x NA x √ √ Limited ●
20-m timed hop
LSI ≥ 90% 1 √ NA x √ √ Limited ●
Greater absolute values of uninvolved limb 1 √ NA x √ √ Limited ●
Greater absolute values of involved limb 1 √ NA x √ √ Limited ●
20-meter timed crossover hop
LSI ≥ 90% 1 √ NA x √ √ Limited ●
Greater absolute values of uninvolved limb 1 √ NA x √ √ Limited ●
Greater absolute values of involved limb 1 √ NA x √ √ Limited ●
Hop test battery
LSI ≥ 90% 5 √ x x x √ Low ●
Greater absolute values of uninvolved limb 1 √ NA x √ √ Limited ●
Greater absolute values of involved limb 1 √ NA x √ √ Limited ●
Ipsilateral graft rupture
Single-leg hop for distance
LSI ≥ 90% 1 x NA x √ √ Limited ●
Triple hop for distance
LSI ≥ 90% 1 x NA x √ √ Limited ●
Triple crossover hop for distance
LSI ≥ 90% 2 x x x √ √ Low ●
6-meter timed hop
LSI ≥ 90% 1 x NA x √ √ Limited ●
Contralateral ACL injury
Single-leg hop for distance
LSI ≥ 90% 1 x NA x √ √ Limited ●
Triple hop for distance
LSI ≥ 90% 1 x NA x √ √ Limited ●
Triple crossover hop for distance
LSI ≥ 90% 2 x x x √ √ Low ●
6-meter timed hop
LSI ≥ 90% 1 x NA x √ √ Limited ●

a no upgrading factors for all outcomes;

b <30% from low risk of bias;

c I2>50% or wide variability in point estimates;

d Wide pooled 95% CIs or few studies with small samples and imprecise estimates;

e Heterogeneity substantially alters pooled estimate;

f Evidence of reporting bias or <10 studies investigating the relationship;

g ●: no association;

▲: hop test measure was associated with increased likelihood of RTS or decreased odds of reinjury;

▼: hop test measure was associated with decreased likelihood of RTS or increased odds of reinjury;

◆: inconsistent results; ⅹ: no limitations to downgrade;

√: downgrade once; NA: not applicable.