Table 1.
Descriptive statistics (mean, standard deviation) for kinematic variables between two fatigue protocols at initial contact, peak vertical ground reaction force (PVGRF), peak posterior ground reaction force (PPGRF), peak knee flexion (PKF), and peak stance. All variables measured in degrees.
| SLO-FP | FAST-FP | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pre-test | Post-test | Pre-test | Post-test | |||||||||
| Mean | SD | 95% CI | Mean | SD | 95% CI | Mean | SD | 95% CI | Mean | SD | 95% CI | |
| Initial contact | ||||||||||||
| Knee flexion (−)/extension (+) | −25.8 | 5.7 | −28.9, −22.6 | −22.6 | 9.7 | −28.0, −17.3 | −25.5 | 8.0 | −29.9, −21.1 | −22.3 | 7.1 | −26.2, −18.3 |
| Knee abduction (−)/adduction (+) | −1.1 | 3.0 | −2.7, 0.6 | −1.9 | 2.8 | −3.4, −0.3 | −2.0 | 2.5 | −3.4, −0.6 | −2.4 | 3.7 | −4.4, −0.4 |
| Knee external (−)/internal rotation (+) | 7.6 | 6.3 | 4.1, 11.1 | 8.4 | 4.5 | 5.9, 10.9 | 14.2 | 6.2 | 4.7, 11.2 | 10.9 | 5.6 | 7.8, 14.0 |
| Hip flexion (+)/extension (−) | 36.2 | 8.7 | 31.4, 41.1 | 32.6 | 9.3 | 27.5, 37.7 | 36.5 | 8.0 | 32.1, 41.0 | 28.1 | 9.3 | 23.0, 33.3 |
| Hip external (−)/internal rotation (+) | 13.2 | 9.4 | 7.9, 18.4 | 10.1 | 8.3 | 4.3, 15.9 | 9.7 | 6.6 | 6.0, 13.4 | 5.7 | 9.4 | 0.4, 10.9 |
| PVGRF | ||||||||||||
| Knee flexion (−)/extension (+) | −41.9 | 8.2 | −46.4, −37.3 | −40.1 | 7.3 | −44.1, −36.1 | −41.6 | 7.7 | −45.9, −37.3 | −37.4 | 6.8 | −41.2, −33.6 |
| Knee abduction (−)/adduction (+) | −2.0 | 5.3 | −4.9, 1.0 | −3.0 | 5.3 | −5.9, 0.0 | −3.7 | 4.0 | −5.9, −1.5 | −3.4 | 6.2 | −6.8, 0.0 |
| Knee external (−)/internal rotation (+) | 14.1 | 6.0 | 10.8, 17.4 | 14.7 | 4.7 | 12.3, 17.3 | 14.2 | 6.2 | 10.8, 17.6 | 17.5 | 5.6 | 14.4 |
| Hip flexion (+)/extension (−) | 31.8 | 10.6 | 25.9, 37.6 | 28.0 | 10.8 | 22.1, 34.0 | 32.1 | 9.0 | 27.1, 37.1 | 23.2 | 10.9 | 17.2, 29.3 |
| Hip external (−)/internal rotation (+) | 7.8 | 9.4 | 2.7, 13.0 | 3.8 | 10.9 | −2.2, 9.8 | 4.4 | 7.5 | 0.2, 8.5 | 0.3 | 8.9 | −4.6, 5.3 |
| PPGRF | ||||||||||||
| Knee flexion (−)/extension (+) | −36.8 | 5.0 | −39.6, −34.1 | −36.2 | 8.2 | −40.7, −31.6 | −34.2 | 8.6 | −39.0, −29.5 | −31.2 | 7.7 | −35.5, −26.9 |
| Knee external (−)/internal rotation (+) | 12.8 | 5.9 | 9.5, 16.0 | 14.1 | 5.2 | 11.2, 17.0 | 11.4 | 5.2 | 8.6, 14.3 | 15.1 | 4.8 | 12.4, 17.7 |
| Knee external (−)/internal rotation (+) | 12.8 | 5.9 | 9.5, 16.0 | 14.1 | 5.2 | 11.2, 17.0 | 11.4 | 5.2 | 8.6, 14.3 | 15.1 | 4.8 | 12.4, 17.7 |
| Hip flexion (+)/extension (−) | 35.2 | 8.8 | 30.3, 30.0 | 31.0 | 9.4 | 25.8, 36.2 | 35.6 | 8.2 | 31.1, 40.2 | 26.5 | 9.8 | 21.1, 31.9 |
| Hip external (−)/internal rotation (+) | 10.5 | 9.5 | 5.2, 15.8 | 6.2 | 10.5 | 0.4, 12.0 | 8.2 | 6.5 | 4.6, 11.8 | 3.1 | 9.1 | −1.9, 8.1 |
| PKF | ||||||||||||
| Knee flexion (−)/extension (+) | −54.53 | 5.14 | −57.4, −51.7 | −51.19 | 6.38 | −54.6, −47.6 | −53.07 | 7.04 | −57.0, −49.2 | −48.28 | 7.36 | −52.4, −44.2 |
| Knee abduction (−)/adduction (+) | −3.45 | 6.20 | −6.9, 0.0 | −4.60 | 6.30 | −8.1, −1.1 | −6.10 | 5.33 | −9.0, −3.1 | −5.58 | 7.63 | −9.8, 1.4 |
| Knee external (−)/internal rotation (+) | 16.59 | 6.33 | 13.1, 20.1 | 17.36 | 5.67 | 14.2, 20.5 | 17.22 | 6.64 | 13.5, 20.9 | 19.80 | 6.32 | 16.3, 23.3 |
| Peak stance | ||||||||||||
| Hip flexion (+)/extension (−) | 38.19 | 9.18 | 33.1, 43.3 | 33.89 | 9.49 | 28.6, 39.1 | 38.31 | 8.81 | 33.4, 43.2 | 29.34 | 9.73 | 24.0, 34.7 |
| Hip external (−)/internal rotation (+) | 3.14 | 9.92 | −2.4, 8.6 | −0.75 | 11.35 | −7.0, 5.5 | −0.48 | 7.60 | −4.7, 3.7 | −4.46 | 8.16 | −9.0, 0.1 |
| Knee abduction (−)/adduction (+) | −5.44 | 5.20 | −8.3, −2.6 | −6.23 | 5.00 | −9.0, −3.5 | −7.11 | 4.80 | −9.8, −4.5 | −7.18 | 6.36 | −10.7, −3.7 |