Reliability of assessing trunk motor control using position and force tracking and stabilization tasks

摘要: System-based methods have been applied to assess trunk motor control in people with and without back pain, although the reliability of these has yet be established. Therefore, goal this study was quantify within- between-day using systems-based involving position force tracking stabilization tasks. Ten healthy subjects performed six tasks, stabilizing angular sagittal plane, flexion extension force. Tracking tasks involved following a one-dimensional, time-varying input signal displayed on screen by changing (position tracking) or (force tracking). Stabilization maintaining constant stabilization) while plane disturbance pelvis robotic platform. Time frequency domain assessments error (root mean square H2 norm, respectively) were computed for each task two separate days. Intra-class correlation coefficients (ICC) multiple correlations (CMC) response curves used task. Reliability all excellent (between-day ICC≥0.8 CMC>0.75, within-day CMC>0.85). can deemed reliable.