The Korean Journal of Sports Medicine

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Table. 4.

Table. 4.

Isokinetic knee strength profiles according to a history of knee surgery in the total group

Variable Total (n=17) Surgery group (n=9) Non-surgery group (n=8) p-value
60°∙sec−1
Q-D (N·m) 190.1±27.1 188.9±21.2 191.4±34.0 0.862
Q-ND (N·m) 195.1±28.4 194.3±33.9 196.0±22.8 0.906
Q-D (N·m·kg−1) 2.85±0.44 2.86±0.37 2.83±0.53 0.905
Q-ND (N·m·kg−1) 2.92±0.42 2.92±0.49 2.91±0.36 0.953
BD of Q (%) 10.0±7.0 11.1±7.6 8.8±6.6 0.503
H-D (N·m) 103.7±18.5 103.1±14.1 104.3±23.5 0.907
H-ND (N·m) 101.7±18.5 97.0±18.4 106.8±18.4 0.288
H-D (N·m·kg−1) 1.55±0.24 1.56±0.23 1.54±0.27 0.840
H-ND (N·m·kg−1) 1.51±0.23 1.46±0.28 1.57±0.17 0.340
BD of H (%) 7.1±6.4 7.6±7.1 6.6±5.9 0.772
H/Q of D (%) 54.8±7.3 54.8±6.1 54.8±9.0 0.994
H/Q of ND (%) 52.1±6.5 50.0±5.5 54.5±7.0 0.166
180°∙sec−1
Q-D (N·m) 126.4±17.7 121.8±16.9 131.6±18.1 0.267
Q-ND (N·m) 127.0±14.9 126.2±18.4 127.9±10.9 0.823
Q-D (N·m·kg−1) 1.89±0.25 1.83±0.22 1.95±0.27 0.329
Q-ND (N·m·kg−1) 1.90±0.23 1.90±0.23 1.90±0.24 0.960
BD of Q (%) 6.9±5.1 7.4±6.2 6.3±4.0 0.639
H-D (N·m) 71.9±12.6 70.3±12.9 73.8±12.8 0.593
H-ND (N·m) 71.2±12.6 67.8±12.6 75.1±12.2 0.240
H-D (N·m·kg−1) 1.07±0.16 1.06±0.19 1.08±0.11 0.782
H-ND (N·m·kg−1) 1.06±0.15 1.02±0.18 1.11±0.10 0.224
BD of H (%) 6.6±6.0 7.4±6.5 5.8±5.7 0.575
H/Q of D (%) 57.0±5.6 57.8±5.3 56.1±6.2 0.566
H/Q of ND (%) 56.1±7.6 53.9±6.3 58.6±8.5 0.218

Values are presented as mean±standard deviation.

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

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