The diagnostic criteria for dyssynergic defecation is given as "inappropriate contraction of the pelvic floor or less than 20% relaxation of basal resting sphincter pressure with adequate propulsive forces during attempted defecation."[REF] .
The diagnostic criteria for inadequate defecatory Propulsion is given as "inadequate propulsive forces with or without inappropriate contraction or less than 20% relaxation of the anal sphincter during attempted defecation."[REF] .