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Journal of Experimental Orthopaedics

Table 3 Isokinetic data

From: Adding a modified Lemaire procedure to ACLR in knees with severe rotational knee instability does not compromise isokinetic muscle recovery at the time of return-to-play

 

Lemaire group

n = 35 knees

Reference group

n = 51 knees

p-value*

Mean ± SD

Range

Mean ± SD

Range

 

Concentric mode 240°/s

 Hamstrings deficit (%)

9.0 ± 16.6

(−47.0–34.3)

10.9 ± 16.6

(−39.4–66.7)

n.s.

 Quadriceps deficit (%)

13.6 ± 12.2

(− 21.9–45.6)

18.2 ± 13.4

(−9.3–43.1)

n.s.

Concentric mode 90°/s

 Hamstrings deficit (%)

9.0 ± 13.6

(− 16.6–31.6)

8.5 ± 22.4

(− 63.4–85.3)

n.s.

 Quadriceps deficit (%)

12.2 ± 15.9

(− 21.7–58.3)

15.6 ± 14.1

(−15.9–46.7)

n.s.

Eccentric mode 30°/s

 Hamstrings deficit (%)

12.0 ± 17.1

(−42.7–43.0)

11.2 ± 13.5

(−15.0–45.4)

n.s.

H/Q Ratios

 Concentric 240°

0.64 ± 0.15

(0.41–1.14)

0.66 ± 0.15

(0.19–1.16)

n.s.

 Concentric 90°

0.60 ± 0.12

(0.36–1.02)

0.62 ± 0.15

(0.08–0.90)

n.s.

 Mixed†

1.02 ± 0.19

(0.61–1.50)

1.14 ± 0.24

(0.71–1.77)

0.011

  1. Abbreviations: H Hamstrings, Q Quadriceps
  2. *Wilcoxon rank sum test
  3. †Eccentric Hamstrings at 30°/s ÷ Concentric Quadriceps at 240°/s
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