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On the subject of pedometers
Saw the thread on where to clip your pedometer, on a related topic, I
find you can get fairly decent accuracy with even cheap pedometers if you calibrate them using a know distance, which can easily be measure with your car's odometer. The pedometer has a setting for your stride length. Put in some figure close to what your stride actually is, then walk a know distance. A simple, straight track down a roadside for a mile is good, again you can easily measure this with your car before hand. After walking the know mile, look at what the pedometer indicates you've walked. It probably won't be right on the money, but you can adjust the stride as required to get it pretty close. Say you put in a 30 inch stride, and after your 1 mile walk, the pedo reads 1.25 miles. Obviously your stride is too long, so reduce it by the factor of the error, in this case 1/1.25 = 0.8, so multiply your 30 inch stride by 0.8 & change the stride to 24 inches. Similarly, if the pedo says .75 miles after the 1 mile walk, 1/.75 = 1.333, so multiply your 30 inches stride by 1.333 & change the setting to 40 inches. In my experience the stride setting that yields decent accuracy usually isn't that close to your true average stride. Also always put the pedo on the same spot on your body (I use the spot about in the front of my right leg) and note that things like an elastic jacket band which may press on the instrument is likely to affect the reading, generally reducing it. Dan |
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"Dan" wrote in message ... Saw the thread on where to clip your pedometer, on a related topic, I find you can get fairly decent accuracy with even cheap pedometers if you calibrate them using a know distance, which can easily be measure with your car's odometer. Thanks, Dan - I'll do that. Makes a change from manically counting up to 1000 and seeing if the ped has kept up : ) Nicky. -- A1c 10.5/5.7/6 Weight 95/78/72Kg 1g Metformin, 87.5ug Thyroxine T2 DX 05/2004 |
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