This schema defines Stats-related metadata for a track to be used with the GPX 1.1 schema. The root element defined by this schema is intended to be used as a child element of the "extensions" elements in the trk element in the GPX 1.1 schema. The GPX 1.1 schema is available at http://www.topografix.com/GPX/1/1/gpx.xsd. This type contains data fields for the statistics for a track. This type provides the ability to extend any data type that includes it. This type contains a distance value measured in meters. This type contains a duration in seconds. This type contains a rate of change in distance or height. This type contains a number of events (hr beats, rotations or steps) per minute.