Table 1.
Summary of the kinematic and temporal variables during flexion and return (n = 20) derived from absolute mean peak values
| Lumbar | SD | Hip | SD | Mean difference | 95% CI | P value | |
|---|---|---|---|---|---|---|---|
| Kinematic variables | |||||||
| Peak angular displacement (deg) | 55.9 | 5.8 | 69.2 | 10.3 | 13.3 | 6.1 to 20.5 | 0.001** |
| Peak flexion velocity (deg/s) | 43.5 | 7.2 | 49.0 | 11.7 | 5.5 | −0.5 to 11.7 | 0.071 |
| Peak return velocity (deg/s) | −36.7 | 8.3 | −43.4 | 12.7 | 6.7 | 2.7 to 12.8 | 0.002* |
| Temporal variables | |||||||
| Time to reach flexion initiation (%) | 16.0 | 3.5 | 25.9 | 4.3 | 9.9 | 7.7 to 12.1 | 0.001** |
| Time to reach flexion peak velocity (%) | 43.0 | 7.4 | 56.3 | 4.8 | 13.3 | 8.9 to 17.7 | 0.001** |
| Time to reach return initiation (%) | 12.1 | 6.1 | 7.4 | 2.2 | 4.7 | 1.4 to 8.0 | 0.009* |
| Time to reach return peak velocity (%) | 41.9 | 6.3 | 36.7 | 7.6 | 5.2 | 1.6 to 8.8 | 0.007* |
SD standard deviation, CI confidence interval
*P < 0.05, **P < 0.001