A force with a forward or backward linear acceleration is unique as it will trigger a vergence response with the eyes. This means that the eyes are moving in opposite directions as they track a target moving closer or further from you.
Placing the target on the ground in front of him, Ben then performs a plyometric push-up while keeping the target in focus to integrate training this capability with his plyometric programming.
A medicine ball chest pass is also a great exercise in this plane. While the eye vergence movement won’t be great as with the plyo push-ups, you will be able to generate a greater force so you’re training control with a higher acceleration.
The medicine ball chest pass also incorporates training to maintain head and trunk positioning.
Maintaining target focus during a weapon’s recoil or while kicking in a door are great examples of the importance of maintaining a target focus with a force generated in this plane.