Apple Nike + iPod - Manual (Page 12)

Note: Even after calibrating, the accuracy of the distance measurements may vary
depending on gait, running surface, incline, and temperature.
You can also calibrate Nike + iPod using the workout you just finished. This is useful if
you’ve traveled a known distance that doesn’t match the summary distance displayed
on your device.
To calibrate using your latest completed workout:
iPod nano:
m Choose End Workout, then choose Calibrate. Set the correct distance you
walked or ran, and press the Center button.
iPhone 3GS and iPod touch:
m Tap End Workout, then tap Calibration and set the correct
distance you walked or ran. Tap Save, then tap Done.
The device senses whether the workout was a walk or run, and correctly uses the new
calibration to override the existing one.
To reset Nike + iPod calibration to the default setting:
iPod nano:
m Choose Nike + iPod > Settings > Sensor > Calibrate > Reset Walk
(or Reset Run).
iPhone 3GS and iPod touch:
m Choose Nike + iPod > Calibration > Walk (or Run), and
then choose “Reset to Default.”
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