Wearable computing apparatus with movement sensors and methods therefor

A wearable system for determining at least one movement property comprising:

• a head-mountable device including at least one movement sensor, for sensing a head of a user;
• a processor in communication with the at least one movement sensor;
• a display in communication with the processor;
• and
• a memory in communication with said processor, said memory storing instructions thereon that when executed cause the processor to:
• obtain sensor data from the at least one movement sensor;
• determine at least one movement property relating to movement of a body part of the user based at least in part on frequency ranges of the sensor data obtained from the at least one movement sensor;
• and
• display an indicia of the at least one movement property on the display including a stillness indicator.