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Apparatus and method for calculating caloric expenditure using posture

  • US 8,676,316 B2
  • Filed: 05/15/2012
  • Issued: 03/18/2014
  • Est. Priority Date: 07/16/2004
  • Status: Active Grant
First Claim
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1. A method for operating a cardiac rhythm management device to estimate caloric expenditure, comprising:

  • using a physiological sensor to produce electrical signals associated with a patient'"'"'s physical activity;

    using a posture sensor to produce electrical signals associated with the patient'"'"'s posture; and

    ,operating a controller coupled to the physiological sensor and the posture sensor to;

    determine a current posture of the patient from the posture sensor signals;

    calculate an estimated caloric expenditure as a function of the electrical signals from the physiological sensor and the patient'"'"'s posture, wherein caloric expenditure is defined as a number that corresponds to the amount of oxygen being consumed by the patient, by validating a first estimated caloric expenditure calculated as a function of electrical signals provided by the physiological sensor with a second estimated caloric expenditure calculated as a function of the patient'"'"'s posture.

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