Table 2.
Test-retest: reliability outcomes.
| Muscle group | Test: mean (SD) median (min-max) | Retest: mean (SD) median (min-max) | ICC (95% CI) | p value |
|---|---|---|---|---|
| Quadriceps R (Newton) | 84.6 (33.4) 79.2 (32.1–189.2) |
79.0 (29.7) 76.3 (32.2–175.2) |
0.81 (0.69–0.89) | 0.186 |
| Quadriceps L (Newton) | 84.5 (26.9) 84.4 (27.3–154.7) |
77.9 (29.4) 76.4 (27.1–159.1) |
0.84 (0.69–0.91) | p < 0.05 |
| Hip flexors R (Newtons) | 78.8 (29.6) 82.8 (12.4–144.7) |
73.5 (28.7) 70.9(13.3–150.6) |
0.82 (0.69–0.90) | 0.244 |
| Hip flexors L (Newtons) | 77.3 (28.1) 78.7 (19.9–144.5) |
72.0 (29.2) 66.1 (23.5–162.8) |
0.80 (0.67–0.89) | p < 0.05 |
| Triceps surae R (Newtons) | 60.7 (27.3) 55.5 (16.6–154.4) |
58.4 (27.4) 53.5 (16.8–155.6) |
0.76 (0.60–0.86) | 0.489 |
| Triceps surae L (Newtons) | 63.5 (26.4) 59.0 (22.5–154.1) |
56.4 (25.3) 54.6 (0.0–140.2) |
0.38 (0.11–0.59) | 0.168 |
| Hip adductors R (Newtons) | 57.9 (23.2) 54.6 (23.2–123.6) |
56.0 (20.3) 56.6 (22.2–125.6) |
0.82 (0.70–0.89) | 0.739 |
| Hip Adductors L (Newtons) | 59.6 (22.2) 58.2 (22.4–129.5) |
58.4 (21.8) 54.7 (25.1–117.0) |
0.79 (0.66–0.88) | 0.573 |
| Hip abductors R (Newtons) | 61.0 (15.4) 59.8 (28.2–111.0) |
60.7 (16.1) 59.6. (35.4–112.0) |
0.70 (0.52–0.82) | 0.638 |
| Hip Abductors L (Newtons) | 63.7 (21.2) 61.8 (29.5–126.0) |
65.4 (25.2) 59.2 (26.8–161.7) |
0.76 (0.61–0.86) | 0.491 |
| Hamstrings R (Newtons) | 75.0 (25.0) 73.5 (12.1–133.4) |
70.5 (24.4) 65.9 (22.8–130.7) |
0.91 (0.81–0.95) | p < 0.05 |
| Hamstrings L (Newtons) | 72.8 (24.6) 74.8 (25.3–123.6) |
65.5 (23.6) 62.9 (22.6–125.5) |
0.82 (0.59–0.90) | p < 0.05 |
ICC: intraclass correlation coefficient—confidence intervals are also presented up to 95% of the mean; MDC: minimal detectable change, R: right; L: left; SD: standard deviation.