Table 5

Quality of measurement property evidence by functional performance test

Functional performance testReliabilityMeasurement errorValidityResponsiveness
IntraInterStructuralConstruct
Single leg hop+ (High)0?0+ (Low)+ (Low)
6 m timed hop+ (Moderate)*- (Very low)?0+ (Moderate)- (Low)
Crossover hop+ (Moderate)*0?0+ (Moderate)+ (Low)
Triple hop+ (Very low)0?0+ (Moderate)- (Low)
Vertical hop+ (Moderate)*000+ (Moderate)0
Medial hop0000+ (Low)0
Lateral hop0000+ (Low)0
Timed speedy hop0000- (Moderate)0
10 s. vertical hop0000- (Moderate)0
Single leg drop jump0000+ (Low)0
4-Jump vertical hop0000+ (Very low)0
Vertical jump0000+ (Low)0
Stair hop+ (Very low)00000
Step-down0000+ (Moderate0
Carioca0000+ (Moderate)0
Shuttle run0000±0
Side-step0000±0
Co-contraction0000±0
SEBT anterior0000- (High)0
SEBT posteromedial0000- (Moderate)0
SEBT posterolateral0000- (High)0
YBT anterior0000±0
YBT posteromedial0000±0
YBT posterolateral0000±0
YBT composite0000±0
Test battery000?00

  • +=sufficient rating; ?=indeterminate rating: minimal important change not defined (measurement error) or not all information reported for + (structural); 0=no information; ±=inconsistent rating; -=insufficient rating

  • *Consistent result for leg symmetry index and absolute values as the outcome score, but very low quality of evidence for absolute scores.

  • SEBT, Star Excursion Balance Test; YBT, Y-Balance test.