Some athletes in running sports experience abdominal distress because the body moves up and down therefore jostling the stomach. Correct answer: D
Gastrointestinal distress has been reported to be common among 30%-50% of endurance athletes. The distress denoted ructation (belching) and vomiting, abdominal pain, gastroesophageal reflux (or heartburn), and bloating. The repetitive high-impact mechanics in running is the reason for this distress.