what should i mention etc…
not sure how should i narrow it down… right now i am thinking about the 40 yard dash and relate it to power sports…
finding good references is hard also… plus i have forgotten my scopus username…
rep me on bb.com and then i’ll help 
look at some of these
http://www.iaaf.org/newsfiles/38218.pdf
http://www.elitetrack.com/main/component/option,com_directory/Itemid,37/
^^some is garbage but might find something usefull there
first link is awesome but what your username there…