Tripod or foot three is a stand tool that helps the camera to be stable (flat and upright) Tripod sometimes becomes the most lazy thing brought by some photographers. In fact, the tripod has many functions and advantages if used in the way of photographing moving objects with DSLR cameras this time. 
Using a tripod in fast object shooting can minimize blur caused by camera unstable. If you do not use a tripod, you can use a monopod or other tools that can make the camera is not easy to shake or stable.