STARTING POSITION:
Stand stright. Start walking forward.
MOVEMENT:
Increase the speed until your two feet do not touch the floor after each step. Keep running during the required time and then start walking. Alternate the walk with the run for the required amount of series.
TIPS: Relax your shoulders. Maintain your elbows at 90º angle. Contract your pelvic floor and core. Look straight ahead of you. Don't lift your knees too high.