Mean (+SEM) of the sum of all joints variability across values of all participants.

The bars represent: the static standing task in an unconstrained condition (STAT9), static standing task in an immobilized condition (STAT7), targeting task with no ball balancing in an unconstrained condition (TNB9), targeting task with no ball-balancing task in an immobilized condition (TNB7), targeting task combined with the ball-balancing task in an unconstrained condition (TWB9), and targeting task combined with the ball-balancing task in an immobilized condition (TWB7).