Table 1. Mean (±SD) RMS and maximum differences between DSX- and surface-measured tibiofemoral kinematics across 10 subjects.
| Kinematics | Activities | ||||||
|---|---|---|---|---|---|---|---|
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| Running | Stair-Ascent | ||||||
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| Overall | Injured | Intact | Overall | Injured | Intact | ||
| Flexion- Extension (°) | RMS | 9.1±3.2 | 9.5±3.2 | 8.8±3.3 | 3.3±1.1 | 2.7±0.7 | 3.9±1.2 |
| Max | 15.8±4.8 | 16.3±4.6 | 15.4±5.1 | 5.9±1.1 | 5.6±1.0 | 6.4±0.8 | |
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| Abduction- Adduction(°) | RMS | 2.0±1.2 | 1.5±0.7 | 2.4±1.5 | 2.5±1.7 | 2.3±1.8 | 2.8±1.6 |
| Max | 2.7 ± 1.4 | 2.2±0.8 | 3.2±1.6 | 3.5 ± 1.8 | 3.2±2.0 | 3.8±1.6 | |
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| Internal- External Rotation(°) | RMS | 6.4±4.5 | 6.9±5.7 | 6.0±3.4 | 5.1±3.3 | 5.8±3.5 | 4.4±3.2 |
| Max | 9.0 ± 5.1 | 9.4±6.5 | 8.5±3.7 | 7.3 ± 4.4 | 8.0±5.0 | 6.6±4.0 | |
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| Anterior- Posterior Translation (mm) | RMS | 7.1±3.2 | 6.6±2.9 | 7.6±3.5 | 6.1±2.5 | 6.2±2.7 | 5.9±2.5 |
| Max | 11.2±3.6 | 11.0±4.0 | 11.4±3.4 | 8.7± 3.3 | 9.1±3.6 | 8.4±3.1 | |
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| Proximal-Distal Translation (mm) | RMS | 8.8±3.7 | 8.2±3.9 | 9.4±3.7 | 11.0±4.6 | 9.7±4.4 | 12.2±4.7 |
| Max | 12.3±3.8 | 11.8±4.1 | 12.8±3.7 | 13.0±5.0 | 11.9±4.5 | 14.2±5.4 | |
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| Medial-Lateral Translation (mm) | RMS | 1.9±1.2 | 1.9±1.1 | 1.9±1.3 | 1.5±0.8 | 1.3±0.4 | 1.6±1.0 |
| Max | 3.0± 1.7 | 2.9±1.7 | 3.0±1.9 | 2.0± 0.9 | 1.9±0.5 | 2.1±1.2 | |