The basic use of a wobble board is to stand on it with both feet, and tilt in any direction without letting the board tilt so far that its edge touches the ground. Other common exercises are squats, standing on the board with one foot while keeping the other foot off the ground, push-ups (pressing down on the board with the hands while lying face-down with only the knees or toes contacting the ground), and sit-ups (with the board under the buttocks). Any exercise is much more work when a person's weight is on a wobble board than when supported by a stable and level base such as a floor.