Too much too early? An analysis of worldwide childhood ultramarathon participation and attrition in adulthood

摘要

BACKGROUND: Physical inactivity is associated with chronic disease and premature death, but excessive exercise can also lead to injury. Ultramarathon running is popular among adults but has not been assessed in children. To analyze ultramarathon participation in children and to determine if they continue running ultramarathons into adulthood provide some evidence of associated health risks.