METHOD OF ANALYZING BODY COMPOSITION WITH MEASUREMENT OF VOLTAGE SIGNALS AT MULTIPLE POSITIONS OF BODY
First Claim
1. A method of assessing composition of a body comprising a trunk and four extremities attached thereto, the four extremities comprising first, second, third and fourth extremities, the method comprising:
- applying a first current signal between the first and second extremities, the first current signal comprising a first frequency component in a first frequency;
applying a second current signal between the third and fourth extremities, the second current signal comprising a second frequency component in a second frequency substantially different from the first frequency;
measuring at least one voltage signal at a distal end portion of each of the four extremities;
processing the at least one voltage signals to obtain a first value indicative of impedance of a first extremity with respect to the first frequency, further processing the at least one voltage signals to obtain a second value indicative of impedance of a second extremity with respect to the second frequency; and
assessing composition of the body using the first and second values, wherein assessing does not use impedance of the first extremity with respect to the second frequency obtainable from processing of the at least one voltage signals.
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Accused Products
Abstract
A method of analyzing a composition of a human body having a plurality of body segments is disclosed. The method can include applying a current signal to a body. The method can further include simultaneously measuring a plurality of voltage signals from a plurality of measuring positions of the body during a predetermined period, and processing at least two of the plurality of voltage signals to determine a composition parameter of a body segment so as to assess or analyze composition of the body.
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Citations
17 Claims
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1. A method of assessing composition of a body comprising a trunk and four extremities attached thereto, the four extremities comprising first, second, third and fourth extremities, the method comprising:
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applying a first current signal between the first and second extremities, the first current signal comprising a first frequency component in a first frequency; applying a second current signal between the third and fourth extremities, the second current signal comprising a second frequency component in a second frequency substantially different from the first frequency; measuring at least one voltage signal at a distal end portion of each of the four extremities; processing the at least one voltage signals to obtain a first value indicative of impedance of a first extremity with respect to the first frequency, further processing the at least one voltage signals to obtain a second value indicative of impedance of a second extremity with respect to the second frequency; and assessing composition of the body using the first and second values, wherein assessing does not use impedance of the first extremity with respect to the second frequency obtainable from processing of the at least one voltage signals. - View Dependent Claims (2, 3)
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4. A method of analyzing composition of a body, the method comprising:
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providing a first current signal having a first frequency to a first current path through the body and between a first upper extremity and a first lower extremity; simultaneously with providing of the first current signal, providing a second current signal having a second frequency distinguishable from the first frequency to a second current path through the body and between a second upper extremity and a second lower extremity; measuring voltage signals from voltage measuring positions of the four extremities while the first and second current signals are applied, each extremity comprising at least one of the voltage measuring positions; processing the measured voltage signals to determine a first value representing impedance of a first body segment with respect to the first frequency and a second value representing impedance of a second body segment with respect to the second frequency. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification