About: http://webisa.webdatacommons.org/411250072

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	The gain for going further than 90degrees is little and if you wanted to push your hamstrings or other muscle groups there are plenty of alternative exercises available to achieve this.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com