You can use a Crossfit plyo box in different ways. A beginner may simply step up and step down on this platform to build leg strength. This can get the heart rate up even after just a few minutes. Make sure that you alternate between using the left and the right legs to get up and go down for equal development.
More advanced users have higher leg strength and cardiovascular fitness. They can try to jump from the ground to the top of the box to see how high they can go. They can stack boxes to increase the height until they find their limit. It’s best to be conservative as bad landings can lead to injuries.
The boxes can be used to train the arms as well. Users can place their feet on the top while in plank position to increase the difficulty of pushups.