B B Kraus1, J W Sinclair, D O Castell. 1. Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, North Carolina.
Abstract
STUDY OBJECTIVE: To test the potential of distance running to induce reflux in healthy subjects and the ability of ranitidine to decrease esophageal acid exposure. DESIGN: A randomized, single-blind, crossover study. Objective assessment of reflux was done using an ambulatory intra-esophageal pH monitor during both a baseline hour and 1 hour of running on 2 days of testing. SUBJECTS:Fourteen normal volunteers (10 men, four women) between 22 and 37 years of age were studied. All volunteers ran regularly, completing an average of 20 miles weekly for at least 6 months. INTERVENTIONS:Ranitidine, 300 mg orally, or an identical placebo was administered after a low-fat breakfast just before the baseline hour of pH recording. SETTING:Esophageal motility and pH probe placement was done in the gastroenterology unit at Bowman Gray Medical Center. Running was done on local jogging trials. MEASUREMENTS AND MAIN RESULTS: There was more gastroesophageal reflux during running than during the baseline hour when reflux was measured at a pH threshold of 3.0, 4.0, or 5.0 (P less than 0.05). Reflux episodes were usually associated with belching. Ranitidine, 300 mg administered orally 1 hour before running, significantly (P less than 0.05) reduced the amount of esophageal acid exposure during running. CONCLUSIONS:Gastroesophageal reflux occurs during running in healthy volunteers. It is usually associated with belching. Acid suppression with ranitidine decreases intraesophageal acid exposure during running (P less than 0.05).
RCT Entities:
STUDY OBJECTIVE: To test the potential of distance running to induce reflux in healthy subjects and the ability of ranitidine to decrease esophageal acid exposure. DESIGN: A randomized, single-blind, crossover study. Objective assessment of reflux was done using an ambulatory intra-esophageal pH monitor during both a baseline hour and 1 hour of running on 2 days of testing. SUBJECTS: Fourteen normal volunteers (10 men, four women) between 22 and 37 years of age were studied. All volunteers ran regularly, completing an average of 20 miles weekly for at least 6 months. INTERVENTIONS:Ranitidine, 300 mg orally, or an identical placebo was administered after a low-fat breakfast just before the baseline hour of pH recording. SETTING:Esophageal motility and pH probe placement was done in the gastroenterology unit at Bowman Gray Medical Center. Running was done on local jogging trials. MEASUREMENTS AND MAIN RESULTS: There was more gastroesophageal reflux during running than during the baseline hour when reflux was measured at a pH threshold of 3.0, 4.0, or 5.0 (P less than 0.05). Reflux episodes were usually associated with belching. Ranitidine, 300 mg administered orally 1 hour before running, significantly (P less than 0.05) reduced the amount of esophageal acid exposure during running. CONCLUSIONS:Gastroesophageal reflux occurs during running in healthy volunteers. It is usually associated with belching. Acid suppression with ranitidine decreases intraesophageal acid exposure during running (P less than 0.05).
Authors: Thomas V K Herregods; Froukje B van Hoeij; Jacobus M Oors; Albert J Bredenoord; André J P M Smout Journal: Am J Gastroenterol Date: 2016-04-12 Impact factor: 10.864
Authors: Kathryn A Peterson; Wayne M Samuelson; Darin T Ryujin; David C Young; Kristen L Thomas; Kristen Hilden; John C Fang Journal: Dig Dis Sci Date: 2008-08-08 Impact factor: 3.199