The internal structure of a hālau hula can vary quite a bit, generally these are led by a "kumu hula", or master teacher, whose position is roughly equivalent to that of a headmaster. The kumu is responsible for maintaining the integrity of the style and traditions handed down to them by their kumu, during their hula training. Their "kuleana", or responsibility, is therefore to uphold the training and discipline of their haumāna through a perpetuation of their hālau traditions. The kumu is also responsible for the spiritual integrity of the hālau, and is responsible for instructing students in the proper care and protocol of the hālau, which includes their physical well-being by teaching good exercise, dietary, and hygienic practices.