Holds head upright independently when positioned and maintains position for greater than 30 seconds, moving the head freely with control.
holds head upright independently when positioned and maintains position for greater than 30 seconds, moving the head freely with control.
Holds head upright independently when positioned and maintains position for greater than 30 seconds, moving the head freely with control.
holds head upright independently when positioned and maintains position for greater than 30 seconds, moving the head freely with control.