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METHOD AND SYSTEM FOR ESTIMATING EXERCISE CAPACITY

  • US 20100191127A1
  • Filed: 02/21/2008
  • Published: 07/29/2010
  • Est. Priority Date: 02/23/2007
  • Status: Active Grant
First Claim
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1. A method of estimating exercise capacity of a subject using output radiofrequency signals transmitted to the subject during exercise and input radiofrequency signals received from the subject during exercise, the method comprising:

  • determining a phase shift of the input radiofrequency signals relative to the output radiofrequency signals;

    calculating cardiac output based on said phase shift; and

    using said cardiac output for estimating the exercise capacity of the subject.

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