Kneel on floor with knees on padded surface and feet against floor board or stationary vertical object. With hips straight, position hands under shoulders with arms straight.
Bend arm and lower chest near floor. Immediately reverse direction by throwing body upward by quickly extending arm so hands leaves floor. Catch body and land with hands on floor in original starting position. Repeat.
Keep feet against floor and knees on padded surface. Also keep hips straight throughout movement; upper thighs should be kept inline with torso. Exercise can be performed without feet against floor board.
Begin with conditioning period of easier exercises.
Once this movement is mastered, try more challenging plyo push-up variations.