There is an article about a father/son team running triathlon, and the son is Cerebral palsy due to umbilical cord when coiled around the fetal neck while birth. However, I remember that this my OB/GY told me that this wouldn't be a problem. I search a NIH and found something like http://umbilical%20cord%20when%20coiled%20around%20the%20fetal%20neck Since I don't know a whole lot about this subject, can anyone verify this is possible?