About: http://webisa.webdatacommons.org/454784522

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	FIG. 7 is a graph of the inventors' subjective evaluation of the difficulty of the effort expended in a limb-extension exercise machine as a function of the angle relative to the ground at which the user of the machine exercises.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com