Apparatus and method for using map data in a calibration process

A non-transient computer readable medium containing computer executable instructions which are configured to, when executed by a processor:

• determine a current position of a user;
• consult map data to identify a route having a starting and/or ending position within a predefined proximity to the current position of the user, the route having a known length;
• receive data collected by an accelerometer as the user traverses the route;
• and
• calculate a calibration factor representative of at least one physiological parameter of the user based at least in part on the known length and the received step data.

A personal electronic device configured to enable calibration of data relating to a distance travelled by a user, the device comprising:

• a transceiver apparatus configured to receive step data from an device comprising at least an accelerometer;
• at least one storage apparatus;
• and
• a processor configured to execute at least one computer application thereon, the computer application comprising a plurality of instructions which are configured to, when executed by the processor cause the device to:
• determine a current position of a user using Global Positioning System data;
• consult map data to identify a route having a starting and/or ending position within a predefined proximity to the current position of the user, the route having a known length;
• receive data collected by the accelerometer as the user traverses the route;
• and
• calculate a calibration factor representative of at least one physiological parameter of the user based at least in part on the known length and the received step data.