Table 1.

Message formats used in the MC-Protocol.

#	Function
1	Requesting available institutions (e.g., clubs, schools)
2	Requesting current training session corresponding to an institution (including setup information about autostart and autostop of training on the A-Client)
3	Requesting members of a corresponding institution
4	Requesting general client hardware settings (e.g., device type, baud rate, GPS availability, frequency of sending data to server)
5	Requesting ANT+ network keys
6	Requesting ANT+ sensor setup (sensor name, sensor type, ANT channel, ANT network, further sensor parameters following the ANT protocol)
7	Sending sensor data to the server (plus requesting feedback messages)
8	Start / stop training
9	Pause / resume training