Soccer → Male → Elite → 20-35 years old

  • Isokinetic strength 60°/sec

    Quadriceps
    PT: 239 ± 16 Nm
    PT/BW: 3.17 ± 0.10 Nm/kg
    LSI-D/ND: 99 ± 2 %
    PT eccentric: 299 ± 12 Nm

    Hamstrings
    PT: 138 ± 4 Nm
    PT/BW: 1.78 ± 0.10 Nm/kg
    LSI-D/ND: 102 ± 3 %
    PT eccentric: 187 ± 19 Nm
    PT/BW eccentric: 2.60 ± 0.26 Nm/kg

    Ratios
    HQR: 60 ± 3 %
    DCR: 75 ± 3 %

  • Isokinetic strength 180°/sec

    Quadriceps
    PT: 168 ± 14 Nm
    PT/BW: 2.56 ± 0.10 Nm/kg
    LSI-D/ND: 103 ± 0 %
    PT eccentric: 249 ± 40 Nm

    Hamstrings
    PT: 106 ± 7 Nm
    PT/BW: 1.62 ± 0.05 Nm/kg
    LSI-D/ND: 102 ± 0 %
    PT eccentric: 154 ± 1 Nm

    Ratios
    HQR: 62 ± 6 %
    DCR: 101 ± 3 %

  • Isokinetic strength 300°/sec

    Quadriceps
    PT: 134 ± 6 Nm
    PT/BW: 1.87 ± 0.01 Nm/kg
    LSI-D/ND: 102 ± 0 %
    PT eccentric: 256 ± 15 Nm

    Hamstrings
    PT: 93 ± 7 Nm
    PT/BW: 1.33 ± 0.01 Nm/kg
    LSI-D/ND: 101 ± 4 %
    PT eccentric: 162 ± 4 Nm

    Ratios
    HQR: 68 ± 6 %
    DCR: 126 ± 5 %

  • Double-leg jump tests

    Countermovement jump
    Height: 44.5 ± 6.0 cm
    Power: 53.7 ± 5.0 W/kg

  • Single-leg vertical jump tests

    Ten second repeated hop
    Height: 13.1 ± 3.0 cm
    Height LSI-D/ND: 99 %*
    RSI: 0.42 ± 0.11 m/s
    RSI LSI-D/ND: 98 %*

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; RSI = reactive strength index calculated as (jump height/contact time).

*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.