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I used to be a shitty programmer. Now I'm a lousy runner instead (and a fairly good maker of sandals). But I still get some strange ideas from time to time.

But first a question: How accurate is an accelerometer? Would it be possible to calculate the efficiency of running with the data from the accelerometer?

Overstriding, as an example, means that the foot lands too far in front of the center of mass. So the leg decelerates the speed. Does the accelerometer measue that? If it does then the telephone should be able to record it too.

I would like to improve my running efficiency and there's probably a few others out there with the same goal.

Could someone make a primitive app for biofeedback when running? An app that shows the accelerometer data in a 3D-graph somehow?

I used to be a shitty programmer. Now I'm a lousy runner instead (and a fairly good maker of sandals). But I still get some strange ideas from time to time.

But first a question: How accurate is an accelerometer? Would it be possible to calculate the efficiency of running with the data from the accelerometer?

Overstriding, as an example, means that the foot lands too far in front of the center of mass. So the leg decelerates the speed. Does the accelerometer measue that? If it does then the telephone should be able to record it too.

I would like to improve my running efficiency and there's probably a few others out there with the same goal.

Could someone make a primitive app for biofeedback when running? An app that shows the accelerometer data in a 3D-graph somehow?

I used to be a shitty programmer. Now I'm a lousy runner instead (and a fairly good maker of sandals). But I still get some strange ideas from time to time.

But first a question: How accurate is an accelerometer? Would it be possible to calculate the efficiency of running with the data from the accelerometer?

Overstriding, as an example, means that the foot lands too far in front of the center of mass. So the leg decelerates the speed. Does the accelerometer measue that? If it does then the telephone should be able to record it too.

I would like to improve my running efficiency and there's probably a few others out there with the same goal.

Could someone make a primitive app for biofeedback when running? An app that shows the accelerometer data in a 3D-graph somehow?

Update
Apparently the accelerometer is sensitive enough to enable snooping of keypresses for a keylogger. My guess is that it should work fine for running analytics.Look at the video about collision free running. Daniel Lieberman knows his stuff, but the statistics are much clearer.

I used to be a shitty programmer. Now I'm a lousy runner instead (and a fairly good maker of sandals). But I still get some strange ideas from time to time.

But first a question: How accurate is an accelerometer? Would it be possible to calculate the efficiency of running with the data from the accelerometer?

Overstriding, as an example, means that the foot lands too far in front of the center of mass. So the leg decelerates the speed. Does the accelerometer measue that? If it does then the telephone should be able to record it too.

I would like to improve my running efficiency and there's probably a few others out there with the same goal.

Could someone make a primitive app for biofeedback when running? An app that shows the accelerometer data in a 3D-graph somehow?

Apparently the accelerometer is sensitive enough to enable snooping of keypresses for a keylogger. My guess is that it should work fine for running analytics.

Update
Look at the video about collision free running. Daniel Lieberman knows his stuff, but the statistics are much clearer.

I used to be a shitty programmer. Now I'm a lousy runner instead (and a fairly good maker of sandals). But I still get some strange ideas from time to time.

But first a question: How accurate is an accelerometer? Would it be possible to calculate the efficiency of running with the data from the accelerometer?

Overstriding, as an example, means that the foot lands too far in front of the center of mass. So the leg decelerates the speed. Does the accelerometer measue that? If it does then the telephone should be able to record it too.

I would like to improve my running efficiency and there's probably a few others out there with the same goal.

Could someone make a primitive app for biofeedback when running? An app that shows the accelerometer data in a 3D-graph somehow?

Apparently the accelerometer is sensitive enough to enable snooping of keypresses for a keylogger. My guess is that it should work fine for running analytics.

Look at the video about collision free running. Daniel Lieberman knows his stuff, but the statistics are much clearer.

The Wahoo Tickr seems to have a smoothness monitor.