- Inertial footpod
An Inertial footpod is a device used to track running measurements such as
speed ,distance travelled,pace , etc., which would generally only be available on treadmills or with a GPS unit.This device is usually small and attaches to a runners foot. It uses one or more accelerometers and processes several times a second to compute speed.
One example is the footpod employed by the
Polar S625x running computer.
Wikimedia Foundation. 2010.