Gastrointestinal Motility Patterns: Mechanisms, Disorders, and Emerging Therapeutic Targets

Abstract

Gastrointestinal (GI) motility is a complex, coordinated process essential for digestion, nutrient absorption, immune regulation, and waste elimination. Proper motility depends on the integrated function of smooth muscle layers, the enteric nervous system (ENS), hormonal signaling, and interstitial cells of Cajal (ICC). Disruption of these mechanisms results in clinically significant motility disorders such as achalasia, gastroparesis, irritable bowel syndrome (IBS), and chronic intestinal pseudo-obstruction. Advances in diagnostic tools including high-resolution manometry, wireless motility capsules, electrogastrography, and imaging modalities have enhanced understanding of physiological and pathological motility patterns. Emerging research highlights the importance of the gut-brain axis, immune signaling, microbiome interactions, and molecular pathways in regulating gastrointestinal function. This review summarizes normal motility patterns, regulatory mechanisms, pathophysiology of motility disorders, current pharmacological approaches, and future therapeutic targets.