About: http://webisa.webdatacommons.org/138985653

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Speed comes from leg turnover--in other words the speed at which each foot strikes the ground in a specific period of time, and other factors such as the amount of fast twitch muscle fibers one has.
http://www.w3.org/ns/prov#wasQuotedFrom	sparkpeople.com