정상성인에서 달리기 운동이 식도운동과 위산역류에 미치는 영향

Objectives: Physical exercise has become popular in recent years. It has been known that exercise is related to the development of heartburn, belching, regurgitation and chest pain. However there are few data concerning the effect of exercise on esophageal motor function and gastroesophageal reflux. We evaluated the effect of exercise intensity on esophageal motor activity and gastroesophageal reflux. Methods: We studied healthy volunteers (15 males, age: 28±5 years, BW: 68±10㎏) using a 24 hours ambulatory esophageal pressure, pH catheter and portable digital data recorder (Microdigitrapper 4Mb, Synetics Medical, Sweden). Subjects exercised on a treadmill (Marquette Case 15 Electronic INC) at 50% and 70% maximal heart rate for 30 min. Subjects rested 2 hours before exercise (base line) and for 30 min between exercise sessions. Results: 1) Exercise of 50% maximal heart rate reduced total contraction, contraction duration, percentage of simultaneous contraction and repetitive contraction, (P