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Table 3 Between-group comparisons based on group medians (Quartile 1, Quartile 3) for knee abduction maximum, knee adduction maximum, knee abduction/adduction range, and knee movement units in the frontal plane during the Rise and Down phases of the One-leg rise. P-values (p) and effect sizes (r) are provided for all significant results

From: One-leg rise performance and associated knee kinematics in ACL-deficient and ACL-reconstructed persons 23 years post-injury

Variables

Groups

Group comparisons

ACLR

ACLPT

CTRL

ACLR-ACLPT

ACLR-CTRL

ACLPT-CTRL

Rise phase

 Knee abd max (°)

  Inj/ND

0.51 (2.47, −2.67)

3.07 (7.47, −0.35)

0.68 (5.00, −1.55)

p = 0.038, r = − 0.33

NS

NS

  NI/Dom

1.67 (4.85, −1.08)

5.03 (6.52, 2.69)

1.40 (6.25, −3.13)

p = 0.034, r = − 0.36

NS

p = 0.021, r = − 0.32

 Knee add max (°)

  Inj/ND

10.14 (7.49, 15,67)

7.94 (3.85, 15.45)

8.27 (4.29, 12.89)

NS

NS

NS

  NI/Dom

8.99 (6.74, 12.17)

6.51 (0.95, 9.82)

6.82 (2.96, 14.35)

NS

NS

NS

 Knee abd/add range (°)

  Inj/ND

11.40 (7.74, 14.57)

12.30 (7.48, 15.87)

10.54 (7.27, 12.93)

NS

NS

NS

  NI/Dom

11.00 (8.54, 13.33)

10.49 (8.08, 15.16)

8.85 (6.94, 12.10)

NS

NS

NS

 Knee MU (n)

  Inj/ND

4.67 (4.35, 5.75)

5.00 (4.17, 5.33)

5.00 (4.30, 5.70)

NS

NS

NS

  NI/Dom

5.20 (4.68, 6.00)

5.10 (4.22, 5.45)

4.60 (4.20, 5.30)

NS

NS

NS

Down phase

 Knee abd max (°)

  Inj/ND

−0.56 (2.20, −4.24) a

3.13 (6.65, −1.39)

0.67 (5.06, − 1.70)

p = 0.029, r = − 0.32

NS

NS

  NI/Dom

0.48 (4.64, −2.23) a

4.04 (6.43, 2.41)

0.96 (5.30, −3.68)

NS

NS

p = 0.036, r = − 0.31

 Knee add max (°)

  Inj/ND

9.24 (6.52, 15.42) b

8.03 (2.95, 13.04)

9.25 (3.84, 11.83)

NS

NS

NS

  NI/Dom

7.29 (5.48, 11.95) b

4.80 (−0.06, 8.95)

5.78 (1.91, 13.81)

NS

NS

NS

 Knee abd/add range (°)

  Inj/ND

8.90 (6.41, 13.50)

9.57 (6.73, 14.30)

8.57 (6.09, 10.76)

NS

NS

NS

  NI/Dom

8.08 (5.97, 12.18)

9.60 (5.80, 12.25)

7.16 (5.58, 10.57)

NS

NS

NS

 Knee MU (n)

  Inj/ND

4.90 (3.95, 5.70)

5.50 (4.70, 6.25)

4.60 (3.90, 5.60)

NS

NS

NS

  NI/Dom

4.80 (4.28, 5.65)

5.15 (4.28, 6.10)

4.70 (4.08, 5.35)

NS

NS

NS

  1. Bold text highlights significant differences
  2. Abbreviations: abd Abduction, add Adduction; Inj ACL-injured, ND CTRL non-dominant, NI ACL non-injured, Dom CTRL dominant, NS Not statistically significant, MU Movement units
  3. Significant within-group (between-leg) differences,
  4. aKnee abduction maximum for ACLR during Down phase; injured leg vs. non-injured leg, p = 0.035, r = − 0.39
  5. bKnee adduction maximum for ACLR during Down phase; injured leg vs. non-injured leg, p = 0.041, r = − 0.38