Any of you college kids out there working on a thesis, try this topic. Find out what is in the water in Dallas-Fort Worth, take samples from the local college and high school athletic programs and compare them to other cities across the country.
Find out the mineral quantities in varying samples, take polls on hamstring injuries from those between 16 and 40. After months of serious and thorough testing, if there are no conclusive results and a hypothesis can not be made.....throw the results in the trash and just blame the trainers