Lateral pillar march ("Pillar march, to side" Cardiovascular workout)

Stand tall with your arms at your sides and elbows bent to 90 degrees.
Lift one knee up while you bring the opposite arm forward and the same elbow back.
Step to the side by driving your foot down to the ground, lifting your opposite knee and exchanging arm positions.
Continue marching laterally for the prescribed number of steps.
Repeat the movement on the opposite direction.