The horizontal forces will not affect its vertical movement and the vertical forces will not affect its horizontal movement. The horizontal forces are equal in size and opposite in direction.

Postural improvement correlated with horizontal saccadic eye movements, while body stability worsened in conjunction with vertical saccadic eye movements. "For young adults, vertical saccadic eye ...

or one foot in front of the other (tandem stance), while making horizontal or vertical saccadic eye movements, or gazing steadily at a fixed target. Horizontal saccadic eye movements rather than ...