Mechanisms of Improving Fecal Continence Muscles Motor Function

Inclusion Criteria: * Healthy volunteers without past or present history of fecal incontinence * Patients age 18 years and older with reduced anal resting and or squeeze pressure, reflecting weakness of the anal sphincters who can perform the study Exclusion Criteria: * Any one less than 18 years old * Neurological disorders like dementia, cerebrovascular diseases * Muscle diseases like muscular dystrophy, myopathies * Inflammatory bowel disease or celiac disease * Neuro-muscular junction disorders/myasthenia gravis, Eaton-Lambert syndrome * Organ prolapse, large rectocele(\>2cm), rectal intussusception * Hip dysplasia or recent hip surgery and immobile patients. * Patients with complete normal anal resting and squeeze pressure * Impaired rectal evacuation (dyssynergy defecation) * Fecal incontinence completely due to loss of rectal sensation * Subjects unable to contract their external anal sphincter at all