To watch the gastrointestinal motility, we designed motility recording with BL-420S and intestine propulsion. Gastrointestinal myoelectric activity that is a delicate index of gastrointestinal motility, comprises gradual wave and spike exercise (rapid wave). Gradual wave could influence the mechanical contraction by pacing and directing gastrointestinal contraction[17], and also the s... https://www.directivepublications.org/journal-of-gastroenterology-hepatology-and-endoscopy-research/