Movement: With your arms straight in front of you and your torso upright, walk forward and swing your right leg in front of you while keeping the leg straight. Keep your back neutral and your core tight. Range of motion should come through your hips and not your spine.
Repetitions: When both legs have completed one full step, this counts as one repetition.
Instructions and effects for the Toy Soldiers exercise 
Movement in Sagittal Plane