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Method of distinguishing running from walking

  • US 7,930,135 B2
  • Filed: 12/23/2008
  • Issued: 04/19/2011
  • Est. Priority Date: 07/10/2008
  • Status: Active Grant
First Claim
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1. A method of distinguishing running from walking, comprising:

  • attaching an accelerometer to a person, wherein the accelerometer is a three-axis accelerometer sensing accelerations along each of three orthogonal axes so that the accelerometer is operative regardless of whether the accelerometer is upright when attached to the person;

    detecting, with the accelerometer, fluctuating whole-body accelerations experienced by the body of the person when moving on foot, whereinfluctuating accelerations within the whole-body accelerations detected by the accelerometer correspond to walking by the person, andfree-fall movements of the body of the person within the fluctuating whole-body accelerations detected by the accelerometer correspond to running by the person; and

    determining whether the fluctuating whole-body accelerations comprise a free-fall movement of the body of the person, thereby distinguishing running by the person from walking by the person.

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