“…These results indicate that the progressive nature of the developmental delay was reversed following exercise intervention. Divergent results reported here may be explained, at least in part, by the lack of comprehensive testing of vestibular function and postural control in the previous reports [13,14], thus limiting the intervention to practice of balance. In addition, the nature of the hearing loss was not reported, and the children in these studies [13,14] were beyond the critical period of balance development.…”