What sports can be selected by HIIT interval training method?

There are many kinds of optional sports, but it is feasible to walk and run alternately. Other (improved) cardiovascular equipment exercises such as treadmills, elliptical machines, spinning bikes, aerobic exercise (aerobic exercise) and underwater exercise (aerobic exercise in water) can be tried. You can even combine skipping with handball squash. If you don't want to be bored, you can make fitness interesting.