Adult Studies: In a double-blind study of three different dosing regimens of ZOFRAN Injection, 0.015 mg/kg, 0.15 mg/kg, and 0.30 mg/kg, each given three times during the course of cancer chemotherapy, the 0.15-mg/kg dosing regimen was more effective than the 0.015-mg/kg dosing regimen.
Peristaltic movement comprises relaxation of circular smooth muscles, then their contraction behind the chewed material to keep it from moving backward, then longitudinal contraction to push it forward. Earthworms use a similar mechanism to drive their locomotion, and some modern machinery imitates this design.
Robots have been designed that use peristalsis to achieve locomotion, as the earthworm uses it. Related terms. Catastalsis is a related intestinal muscle process. Aperistalsis refers to a lack of propulsion. It can result from achalasia of the smooth muscle involved. Basal electrical rhythm is a slow wave of electrical activity that can initiate a contraction. Ileus is a disruption of the normal propulsive ability of the gastrointestinal tract caused by the failure of peristalsis. Notes and references