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Isokinetic strength 60°/sec
Quadriceps
PT: 225 ± 0 Nm
PT/BW: 2.76 ± 0.41 Nm/kg
LSI-D/ND: 106 ± 1 %
PT eccentric: 310 ± 10 Nm
PT/BW eccentric: 2.69 ± 0.45 Nm/kgHamstrings
PT: 130 ± 5 Nm
PT/BW: 1.57 ± 0.23 Nm/kg
LSI-D/ND: 106 ± 6 %
PT eccentric: 150 ± 10 Nm
PT/BW eccentric: 1.56 ± 0.35 Nm/kgRatios
HQR: 61 ± 3 %
DCR: 71 ± 7 % -
Isokinetic strength 180°/sec
Quadriceps
PT: 150 ± 3 NmHamstrings
PT: 105 ± 7 NmRatios
HQR: 71 ± 8 % -
Isokinetic strength 300°/sec
Quadriceps
PT: 125 ± 5 Nm
PT/BW: 1.27 ± 0.23 Nm/kg
LSI-D/ND: 106 %*Hamstrings
PT: 90 ± 7 Nm
PT/BW: 0.98 ± 0.19 Nm/kg
LSI-D/ND: 114 %*Ratios
HQR: 79 ± 1 %
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Single-leg vertical jump tests
Vertical hop
Height: 23.0 ± 6.0 cm
Height LSI-D/ND: 98 ± 13 % -
Single-leg horizontal sagittal plane jump tests
Single hop for distance
Distance: 161 ± 28 cm
Distance LSI-D/ND: 97 ± 8 %Crossover hop for distance
Distance: 493 ± 53 cm
Distance LSI-D/ND: 101 ± 8 %
Contact time: 0.40 ± 0.10 s
Contact time LSI-D/ND: 102 ± 15 %
Test duration: 1.65 ± 0.20 s
Test duration LSI-D/ND: 103 ± 7 % -
Single-leg horizontal frontal plane jump tests
Side hop
Hops: 55 ± 12
Hops LSI-D/ND: 100 ± 18 %
DCR = dynamic control ratio=eccentric hamstring strength to concentric quadriceps strength ratio; HQR = concentric hamstring strength to concentric quadriceps strength ratio; LSI-D/ND = limb symmetry index calculated as ((value dominant leg)/(value non-dominant leg))*100%; PT = peak torque; PT/BW = peak torque normalized to body weight.
*Standard deviation not available.
Published in
van Melick N, van der Weegen W, van der Horst N, Bogie R. Double-leg and single-leg jump test reference values for athletes with and without ACL reconstruction who play popular pivoting sports, including soccer and basketball: a scoping review. J Orthop Sports Phys Ther 2024;54(6):1-14.
van Melick N, van der Horst N, van der Weegen W. Quadriceps and hamstrings strength reference values for athletes with and without ACL reconstruction who play popular pivoting sports, including soccer, basketball and handball: a scoping review. J Orthop Sports Phys Ther 2022;52(3):142-155.