About: http://webisa.webdatacommons.org/62596102

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	Because things like temperature, humidity, hydration, over training and some other factors can have a huge effect and a HRM will show it so you can adjust your speed.
http://www.w3.org/ns/prov#wasQuotedFrom	metafilter.com