The Korean Journal of Sports Medicine

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Table. 6.

Table. 6.

Isokinetic knee strength profiles according to a history of knee injury in the subgroup*

Variable Total (n=11) Injured group (n=6) Not injured group (n=5) p-value
60°·sec−1
Q-D (N·m) 197.0±29.5 193.0±25.6 201.8±36.1 0.661
Q-ND (N·m) 204.4±24.3 204.2±26.1 204.6±24.9 0.978
Q-D (N·m·kg−1) 2.91±0.49 2.88±0.44 2.93±0.59 0.884
Q-ND (N·m·kg−1) 3.01±0.44 3.04±0.48 2.98±0.45 0.836
H-D (N·m) 108.1±18.8 107.7±9.65 108.6±27.7 0.946
H-ND (N·m) 106.1±18.6 104.0±14.8 108.6±24.0 0.721
H-D (N·m·kg−1) 1.59±0.25 1.62±0.23 1.56±0.29 0.750
H-ND (N·m·kg−1) 1.55±0.24 1.55±0.28 1.55±0.22 10.00
H/Q of D (%) 55.2±6.7 56.2±2.6 54.0±10.0 0.619
H/Q of ND (%) 51.8±7.0 51.0±6.5 52.8±8.2 0.700
180°·sec−1
Q-D (N·m) 130.0±17.8 126.3±17.6 134.4±19.0 0.489
Q-ND (N·m) 130.6±13.2 133.7±14.0 127.0±12.6 0.429
Q-D (N·m·kg−1) 1.91±0.24 1.87±0.23 1.95±0.26 0.610
Q-ND (N·m·kg−1) 1.92±0.24 1.99±0.21 1.85±0.28 0.398
H-D (N·m) 75.3±11.7 73.2±10.4 77.8±13.9 0.558
H-ND (N·m) 73.5±12.9 71.3±11.4 76.2±15.6 0.579
H-D (N·m·kg−1) 1.10±0.13 1.09±0.17 1.11±0.08 0.732
H-ND (N·m·kg−1) 1.08±0.15 1.06±0.19 1.10±0.11 0.684
H/Q of D (%) 58.0±5.3 58.2±3.4 57.8±7.5 0.924
H/Q of ND (%) 56.5±8.9 53.7±7.0 59.8±10.5 0.302

Values are presented as mean±standard deviation.

Q: quadriceps, D: dominant limb, ND: non-dominant limb, H: hamstrings, H/Q: hamstring to quadriceps strength ratio.

*Individuals who had more than 15% difference in right and left muscle strength were excluded in the subgroup.

Korean J Sports Med 2022;40:128-37 https://doi.org/10.5763/kjsm.2022.40.2.128
© 2022 Korean J Sports Med