Several studies were conducted by McKenna and colleagues to assess the effectiveness of the biofeedback games on treating LUTD symptoms.The trials involved 41 and 160 children of varying ages that averaged out to be 7.2 and 8.5 years respectively. The games worked by acquiring feedback that represented a flexion of the pelvic floor and relaxation of the abdominal muscle. All of the children in the trials participated in approximately an hour of treatment per session that involved around 20 minutes of supervised gaming time. The 84% and 87% success rate in each trial showed that the method of using biofeedback paired with the video games is a viable option for the treatment of LUTD in children.