Experimental Evaluation of Balance Prediction Models for Sit-to-Stand Movement in the Sagittal Plane

Figure 5

An example of a nonstandard control strategy performed by subject A. The CM position at the seat-off was 1.39 foot length. It is possible to see that at the moment of the seat-off, the CM is in a backward position near the most efficient zero torque compared to the trajectories of the same subject in Figure 4.