Apple Nike + iPod Sensor - Manual (Page 12)

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Using Nike + iPod
Follow these instructions to get the most out of Nike + iPod.
Calibrating Nike + iPod
The default calibration for Nike + iPod is accurate for many users. You can improve
the accuracy by calibrating Nike + iPod to your natural running and walking style.
On iPod nano, you can perform a calibration workout over a known distance, or
use your latest workout and enter the distance travelled. On iPhone or iPod touch,
you can calibrate using your latest completed workout for which you know the
distance traveled.
To calibrate Nike + iPod for running and walking using iPod nano (5th generation
or earlier):
1 Choose Nike + iPod > Settings > Sensor > Calibrate.
2 Choose Run or Walk and enter a distance.
For best results, use a distance of at least one mile. The shortest calibration distance
you can enter is one quarter of a mile.
3 Press the Center button.
4 Run or walk the set distance at a steady, natural pace.
5 Press the Menu button and choose Done Calibrating.
A message lets you know if the calibration was successful. If you want to calibrate for
both running and walking, repeat steps 1–5.
Note: Even after calibrating, the accuracy of the distance measurements may vary
depending on gait, running surface, incline, and temperature.