About: http://webisa.webdatacommons.org/124533154

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	But as you use a narrower grip or even switch to underhand, you are using more muscles to pull your body up by including your biceps and back and other supporting muscles thereby allowing you to complete an increased amount of reps.
http://www.w3.org/ns/prov#wasQuotedFrom	muscleandstrength.com