Which city park do you have a volleyball or basketball court? Make this football field an impromptu "gym" for you to sport with friends. High-intensity Interval Training (HIIT) burns so many calories while increasing your maximum aerobic capacity.
How: use the ball field line as a reference when you do the set of exercises below
Sprint sprint (5 times): From one end of the field to the other, sprints as usual you run and jog backwards back to the starting point. Repeat five times.
