| Follicular phase | Ovulation phase | Luteal phase | Overall phase effect | Bonferroni-adjusted p value | ||||
| F(df) | p Value | F vs O | O vs L | F vs L | ||||
| Serum sample and knee joint laxity | ||||||||
| Days of test | 6.12 (1.42) | 16.16 (3.02) | 22.84 (3.29) | 320.564(2,48) | 0.000* | 0.000* | 0.000* | 0.000* |
| Oestradiol (pg/ml) | 45.25 (23.93) | 81.54 (41.17) | 139.73 (86.81) | 18.361(2,48) | 0.000* | 0.000* | 0.015* | 0.000* |
| Progesterone (ng/ml) | 0.99 (0.46) | 3.34 (2.37) | 11.66 (7.06) | 45.119(2,48) | 0.000* | 0.000* | 0.000* | 0.000* |
| Laxity at 89 N (mm) | 4.78 (1.69) | 5.20 (1.70) | 4.62 (1.53) | 3.526(2,48) | 0.037* | 0.243 | 0.015* | 1.000 |
| Peak knee angle (°) | ||||||||
| Knee abduction | 5.25 (4.59) | 5.61 (4.87) | 5.56 (5.18) | 0.128(2,44) | 0.880 | 1.000 | 1.000 | 1.000 |
| Knee flexion | 62.77 (6.12) | 63.49 (6.77) | 63.77 (8.55) | 0.497(2,44) | 0.612 | 1.000 | 1.000 | 1.000 |
| Peak knee moment (Nm) | ||||||||
| External rotation | 26.13 (14.44) | 26.43 (15.65) | 26.65 (15.20) | 0.007(2,48) | 0.993 | 1.000 | 1.000 | 1.000 |
| Internal rotation | 6.84 (5.96) | 5.71 (3.10) | 5.63 (3.14) | 0.980(2,48) | 0.383 | 1.000 | 1.000 | 0.708 |
| Adduction | 20.16 (18.37) | 19.24 (20.00) | 18.95 (20.35) | 0.073(2,48) | 0.930 | 1.000 | 1.000 | 1.000 |
| Abduction | 88.74 (43.34) | 88.28 (46.75) | 88.27 (39.96) | 0.191(2,48) | 0.827 | 1.000 | 1.000 | 1.000 |
| Extension | 231.99 (49.90) | 235.38 (64.85) | 232.42 (60.02) | 0.112(2,48) | 0.885 | 1.000 | 1.000 | 1.000 |
| Knee impulse (Nms) | ||||||||
| External rotation | 2.69 (1.81) | 2.84 (1.87) | 2.84 (1.81) | 0.365(2,48) | 0.696 | 1.000 | 1.000 | 1.000 |
| Internal rotation | 0.08 (0.06) | 0.08 (0.06) | 0.06 (0.04) | 1.103(2,48) | 0.340 | 1.000 | 0.852 | 0.462 |
| Adduction | 0.28 (0.30) | 0.25 (0.24) | 0.22 (0.23) | 0.958(2,48) | 0.391 | 0.975 | 1.000 | 0.621 |
| Abduction | 9.96 (6.70) | 10.20 (6.64) | 9.87 (5.66) | 0.335(2,48) | 0.717 | 1.000 | 1.000 | 1.000 |
Knee angle data from the first two subjects were not included because of technical problems during data collection. One-way repeated-measures analysis of variance was performed at α = 0.05. Post-hoc test included two-tail paired t test with a Bonferroni adjustment for multiple comparisons (p value was multiplied by the number of comparisons (n = 3)). *p<0.05.
F, follicular phase; O, ovulation; L, luteal phase.