About: http://webisa.webdatacommons.org/109200006

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	In fact, in an activity such as jumping off of both legs, where the extensor muscles are used simultaneously, there is little flexor activity since the feet do not leave the ground as the legs bend.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com