Biofeedback therapy is a labour intensive and multi-disciplinary approach but has no adverse
effects. However, it is only offered in a few centres. In order to treat the vast number of constipated
patients in the community, a home based, self-training program is essential. A large statewide study
that employed home trainers demonstrated the feasibility of home training, but the efficacy of therapy
was not compared and objective parameters of anorectal function were not assessed [15]. In another
European study, significant improvement was reported in most subjects receiving home therapy [16],
but there was no control group. Also, one study reported that biofeedback improves both normal and
slow transit constipation [17], but a more recent controlled study showed that biofeedback therapy
only benefits patients with dyssynergia and normal transit constipation and is not helpful in patients
with only slow transit constipation