The researchers developed a new way to measure dynamic balance by looking at how the center of gravity and center of pressure move together. They tested this method on stroke patients and healthy people. They found that stroke patients had a longer delay in their center of pressure catching up to their center of gravity compared to healthy people. They also found a difference in the distance between the two points, but it was not as clear. The distance measurement was related to a common balance scale used in clinics. This study suggests that measuring these two points together could be a useful way to assess balance in the future.