1x Full Gasser = 4x lengths across the width of a football or soccer field.
A football field is 53 yards wide.
Athlete starts at one side line.
– “Go” the athlete sprints across the field to the far sideline, then sprints back to the start, then sprints back to the far sideline again, then returns to to start.
No field? Step out or measure 53 yards and set up two cones. Be resourceful.
See video below: