Table 2 Measured hip joint forces in the four patients
Maximum force (N) | Minimum force (N) | Flexion angle at the minimum force (°) | Force at 90 flexion (N) | ||
|---|---|---|---|---|---|
Patient 1 | Mean | 312.0* | 116.9 | 30.0 | 279.8 |
Range | 312.0* | 105.5 – 128.4 | 28.0—33.0 | 249.6—283.8 | |
COV(%) | * | 7.4 | 7.2 | 8.3 | |
Patient 2 | Mean | 384.7 | 135.0 | 39.4 | 174.9 |
Range | 348.2—437.8 | 122.1—143.2 | 45.0—35.4 | 164.6—182.3 | |
COV (%) | 12.2 | 8.4 | 10.3 | 5.3 | |
Patient 3 | Mean | 791.2 | 134.5 | 46.2 | 222.5 |
Range | 779.5—804.2 | 132.8—137.0 | 43.8—50.4 | 210.4—233.9 | |
COV (%) | 1.6 | 1.6 | 6.2 | 5.3 | |
Patient 4 | Mean | 186.9 | 93.0 | 15.7 | 155.1 |
Range | 182.9—194.5 | 84.8—97.2 | 13.6—17.1 | 152.8—158.2 | |
COV (%) | 3.5 | 7.6 | 9.5 | 1.8 | |
Mean | 418.7 | 120.0 | 32.8 | 204.5 | |
Mean intrasubject COV (%) | 5.8 | 6.5 | 8.3 | 4.7 | |
Intersubject COV (%) | 58.3 | 16.5 | 40.2 | 24.2 | |