Please refrain from giving advice when the original poster is asking for EXPERIENCE, not opinion. “I heard of a guy” is NOT experience. It is rumor. Bowel twists and hernias occur regardless of exercise/athetics.
Unless you want to back up your statements with evidence, do not make these declarative statements. It not not scares people unnecessarily, it spreads disinformation. Ending your reply with stating it your opinion is not enough to undo the prior incorrect remarks.