Identifying and measuring bodily states and feedback systems background

A method, implemented at a computer system that includes at least one processor, for determining a level and/or an amount of pain in a user based on limb movement dynamics, the method comprising:

• monitoring a limb movement task using data received from a limb movement tracking and measuring device;
• calculating movement dynamics of limb movement during the limb movement task using the limb movement tracking and measuring device, the movement dynamics comprising:
• a path smoothness between distinct points of limb movement related to the limb movement task;
• and
• a speed of task performance, wherein the speed of task performance comprises measures of limb acceleration within the limb movement task or a duration of task performance;
• comparing the calculated movement dynamics with a baseline parameter;
• and
• determining a level and/or an amount of pain based on the comparison of the movement dynamics with the baseline parameter.

A computer program product having stored thereon computer-executable instructions that, when executed by one or more processors of a computer system, cause the computer system to perform at least the following:

• monitor a limb movement task using data received from a limb movement tracking and measuring device;
• calculate movement dynamics of limb movement during the limb movement task using the limb movement tracking and measuring device, the movement dynamics comprising:
• a path smoothness between distinct points of limb movement related to the limb movement task;
• and
• a speed of task performance, wherein the speed of task performance comprises measures of limb acceleration within the limb movement task or a duration of task performance;
• compare the calculated movement dynamics with a baseline parameter;
• and
• determine a level and/or an amount of pain based on the comparison of the movement dynamics with the baseline parameter.