Trunk control in unstable sitting posture during functional activities in healthy subjects and patients with multiple sclerosis1  Daniela Lanzetta, PT, Davide Cattaneo, PT, Daniele Pellegatta, MD, Roldano Cardini, MD  Archives of Physical Medicine and Rehabilitation  Volume 85, Issue 2, Pages 279-283 (February 2004) DOI: 10.1016/j.apmr.2003.05.004

Fig 1 Mean angular displacement in sagittal plane for healthy subjects and patients in the 3 experimental tasks. NOTE. Bars represent quiet sitting position (STAB task), head movements (HEAD task), and hand movements (HAND task). Archives of Physical Medicine and Rehabilitation 2004 85, 279-283DOI: (10.1016/j.apmr.2003.05.004)

Fig 2 Mean angular displacement in frontal plane for healthy subjects and patients in the 3 experimental tasks. See figure 1 Note. Archives of Physical Medicine and Rehabilitation 2004 85, 279-283DOI: (10.1016/j.apmr.2003.05.004)

Fig 3 Mean angular velocity in sagittal plane for healthy subjects and patients in the 3 experimental tasks. See figure 1 Note. Archives of Physical Medicine and Rehabilitation 2004 85, 279-283DOI: (10.1016/j.apmr.2003.05.004)

Fig 4 Mean angular velocity in frontal plane for healthy subjects and patients in the 3 experimental tasks. See figure 1 notes. Archives of Physical Medicine and Rehabilitation 2004 85, 279-283DOI: (10.1016/j.apmr.2003.05.004)

Fig 5 Comparison of the position, angular displacement, and velocity of angular displacement in MS patients and in healthy subjects during forward tilt. NOTE. MP is the mean distance between vertical axis displayed on the screen and the patient’s actual path, VL ML is the velocity in the frontal plane, and SW ML is the mean angular displacements (oscillations) in the frontal plane. Archives of Physical Medicine and Rehabilitation 2004 85, 279-283DOI: (10.1016/j.apmr.2003.05.004)

Fig 6 Comparison of the position, angular displacement, and velocity of angular displacement in patients and in healthy subjects during backward tilt. See figure 5 note. Archives of Physical Medicine and Rehabilitation 2004 85, 279-283DOI: (10.1016/j.apmr.2003.05.004)