Shoe wear-out sensor, body-bar sensing system, unitless activity assessment and associated methods

A method for determining a unitless activity value for a desired period of activity, comprising:

• clearing a period accumulator prior to the start of the activity period;
• sampling a detector periodically to obtain data;
• processing the data to determine a number representative of the sampling period;
• adding the number to the period accumulator;
• determining the unitless activity value based upon the period accumulator, a maximum activity number and a display range;
• and
• displaying the unitless activity value;
• wherein the steps of sampling, processing, and adding are repeated until data is sampled for the desired period of activity.

A method of assessing activity unitlessly, comprising:

• detecting motion of a user;
• processing detected motion, over time, to determine an activity value;
• ratioing the activity value to a maximum activity value;
• and
• reporting a scaled unitless activity value to the user based upon the ratio and a scale.

A software product comprising instructions, stored on computer-readable media, wherein the instructions, when executed by a computer, perform steps for determining a unitless activity value for a desired period of activity, comprising:

• instructions for detecting motion of a user;
• instructions for processing detected motion, over time, to determine an activity value;
• instructions for ratioing the activity value to a maximum activity value;
• and
• instructions for reporting a scaled unitless activity value to the user based upon the ratio and a scale.