JP2006305217A5

JP2006305217A5 -

Info

Publication number: JP2006305217A5
Application number: JP2005134048A
Authority: JP
Filing date: 2005-05-02
Publication date: 2007-09-20
Anticipated expiration: 2025-05-02

Claims

The current application electrode pair is disposed in the trunk periphery direction, one voltage measurement electrode of the voltage measurement electrode pair is disposed in the vicinity of one current application electrode of the current application electrode pair, and the other voltage measurement electrode is disposed on the one side. The trunk subcutaneous fat measurement method is characterized in that the trunk subcutaneous fat tissue information is obtained by measuring the impedance of the trunk by disposing it at a position far from the current application electrode in the trunk length direction.

From one of the current application electrodes included in the current application electrode pair, an electric current is applied to a site where the subcutaneous fat tissue layer is thin, or a region where the muscle abdomen of the skeletal muscle tissue layer is absent or thin,
One voltage measurement electrode included in the voltage measurement electrode pair is arranged at a position where the influence of the spreading resistance directly under the current application electrode is dominant, and the other voltage measurement electrode is influenced by the spreading resistance under the current application electrode. Subcutaneous fat of the trunk is obtained by measuring the potential difference between the one voltage measurement electrode and the other voltage measurement electrode by disposing them at a position away from each other until relieving is reduced Measuring method.

Applying a current from one current application electrode included in at least one current application electrode pair to a site where the subcutaneous fat tissue layer is thin, or where there is no or thin muscle abdomen of the skeletal muscle tissue layer,
One voltage measurement electrode included in one voltage measurement electrode pair of at least two voltage measurement electrode pairs is disposed at a position where the influence of the spreading resistance immediately below the current application electrode is dominant, and the other voltage measurement electrode is Subcutaneous adipose tissue information can be obtained by measuring the potential difference between the one voltage measurement electrode and the other voltage measurement electrode by disposing them until the influence of the spreading resistance directly under the current application electrode is reduced. Get
Visceral adipose tissue information is obtained by measuring the potential difference by placing the other voltage measurement electrode pair of the at least two voltage measurement electrode pairs at a position away from each other until the influence of the spreading resistance immediately below the current application electrode is reduced. Get
A trunk visceral / subcutaneous fat measurement method, wherein the one voltage measurement electrode pair and the other voltage measurement electrode pair are selected to selectively obtain the subcutaneous fat tissue information and the visceral fat tissue information.

A current application electrode pair disposed in the trunk periphery direction, one voltage measurement electrode disposed in the vicinity of one current application electrode of the current application electrode pair, and the one current application electrode in the trunk length direction. A trunk fat measuring device comprising: a voltage measuring electrode pair comprising the other voltage measuring electrode arranged at a distant position, and obtaining trunk fat information by measuring trunk impedance .

The trunk subcutaneous fat measurement device according to claim 4 , wherein the one current application electrode and the one voltage measurement electrode are arranged and measured at any of the vicinity of the umbilical position, the flank, and the dorsum.

A current application electrode pair and a voltage measurement electrode pair;
One current application electrode included in the current application electrode pair applies a current to a site where the subcutaneous fat tissue layer is thin, or a muscle abdominal part of the skeletal muscle tissue layer is not present or thin, and the other current application electrode is The current is applied to the site where the subcutaneous fat tissue layer is thick,
One voltage measurement electrode of the voltage measurement electrode pair is disposed at a position where the influence of the spreading resistance immediately below the current application electrode is dominant, and the other voltage measurement electrode is affected by the spreading resistance immediately below the current application electrode. Subcutaneous fat measurement, characterized in that subcutaneous fat tissue information is obtained by measuring a potential difference between the one voltage measurement electrode and the other voltage measurement electrode, which is disposed at a position apart until it is reduced apparatus.

7. The trunk subcutaneous fat measurement apparatus according to claim 6, wherein the other voltage measurement electrode measures the potential difference at a site where the subcutaneous fat tissue layer is thin, or a region where the muscle abdomen of the skeletal muscle tissue layer is absent or thin.

The position where the influence of the spreading resistance directly under the current application electrode is dominant is one of the vicinity of the umbilical position, the flank, and the dorsum, and the position away until the influence of the spreading resistance immediately under the current application electrode is reduced. is the trunk subcutaneous fat measuring apparatus according to claim 6 or 7 is between umbilicus and iliac crest on the edge.

One voltage measurement electrode included in the voltage measurement electrode pair is disposed at a position close to the current application electrode, and the other voltage measurement electrode is disposed at a position close to the current application electrode. wherein disposed sufficiently distant position than the one of the voltage measuring electrode, according to claim 6 or 8 to obtain information of the subcutaneous fat tissue layer by measuring the potential difference between the and the one voltage measuring electrode and the other voltage measuring electrode The trunk subcutaneous fat measuring device according to any one of the above.

The trunk fat measuring apparatus according to claim 9 , wherein the sufficiently distant position is a position that is at least three times the close position.

Having at least one current applying electrode pair and at least two voltage measuring electrode pairs;
One current application electrode included in the at least one current application electrode pair applies a current to a site where the subcutaneous fat tissue layer is thin, or a region where there is no muscle abdomen or is thin, and the other current application The electrode applies current to the site where the subcutaneous fat tissue layer is thick,
One voltage measurement electrode included in one voltage measurement electrode pair of the at least two voltage measurement electrode pairs is disposed at a position where the influence of the spreading resistance immediately below the current application electrode is dominant, and the other voltage measurement electrode is Subcutaneous adipose tissue information by measuring the potential difference between the one voltage measurement electrode and the other voltage measurement electrode, which is arranged at a position separated until the influence of the spreading resistance directly under the current application electrode is reduced Is what you get
The other voltage measurement electrode pair of the at least two voltage measurement electrode pairs is arranged at a position separated until the influence of the spreading resistance directly under the current application electrode is reduced, and the visceral fat tissue information is obtained by measuring the potential difference. Is what you get
A trunk visceral organ viscera, further comprising a switching device that selects the one voltage measurement electrode pair and the other voltage measurement electrode pair and selectively obtains the subcutaneous fat tissue information and the visceral fat tissue information. Subcutaneous fat measuring device.

12. The trunk visceral / subcutaneous fat according to claim 11, wherein the other voltage measurement electrode pair measures the potential difference at a site where the subcutaneous fat tissue layer is thin, or a region where the muscle abdominal part of the skeletal muscle tissue layer is absent or thin. measuring device.

The position where the influence of the spreading resistance directly under the current application electrode is dominant is one of the vicinity of the umbilical position, the flank, and the dorsum, and the position away until the influence of the spreading resistance immediately under the current application electrode is reduced. The trunk visceral / subcutaneous fat measuring device according to claim 11 or 12 , which is between the umbilicus and the upper edge of the iliac crest.

One voltage measurement electrode included in the one voltage measurement electrode pair is disposed at a position close to the current application electrode, and the other voltage measurement electrode is disposed at a position close to the current application electrode. disposed has been sufficiently distant position from the one voltage measuring electrode, claims 11 to obtain information of the subcutaneous fat tissue layer by measuring the potential difference between the and the one voltage measuring electrode and the other voltage measuring electrode 14. The trunk visceral / subcutaneous fat measuring device according to any one of 13 above.

15. The trunk visceral / subcutaneous fat measurement device according to claim 14 , wherein the sufficiently distant position is a position that is at least three times the close position.

A trunk visceral adipose tissue quantity estimation means for estimating a trunk visceral adipose tissue quantity based on the impedance of the trunk and the body specifying information obtained by using the potential difference measured by the at least two voltage measurement electrode pairs; The trunk visceral / subcutaneous fat measuring device according to any one of claims 11 to 15 , further comprising:

A trunk subcutaneous fat tissue mass estimation means for estimating the trunk fat tissue quantity based on the trunk impedance and body identification information obtained by using the potential difference measured by the one voltage measurement electrode pair; A trunk trunk adipose tissue layer impedance estimating means for obtaining an impedance of a trunk trunk adipose tissue layer based on the estimated body fat information and a body trunk information based on the body identification information A trunk skeletal muscle tissue layer impedance estimating means for estimating the skeletal muscle tissue layer impedance of the trunk and estimating the impedance of the skeletal muscle tissue layer of the trunk based on the estimated trunk skeletal muscle mass and body specifying information; The internal organ tissue amount of the trunk is estimated based on the body specifying information, and the internal organ tissue of the trunk is estimated based on the estimated internal organ tissue amount of the trunk and the body specifying information. Trunk internal organs based on the estimated trunk impedance, the estimated trunk impedance, the trunk skeletal muscle tissue layer impedance, and the trunk internal organ tissue impedance. Trunk visceral adipose tissue impedance estimating means for estimating impedance of adipose tissue, and trunk visceral adipose tissue for estimating the amount of trunk visceral adipose tissue based on the estimated impedance of the visceral visceral adipose tissue and body specifying information The trunk visceral / subcutaneous fat measurement device according to claim 11 , further comprising a quantity estimation unit.

The trunk visceral adipose tissue impedance estimator means that the trunk's skeletal muscle has an electrical equivalent circuit for the trunk with respect to a series circuit of the impedance of the internal organ tissue of the trunk and the impedance of the trunk visceral fat tissue. 18. The trunk visceral / subcutaneous fat measurement apparatus according to claim 17 , wherein the estimation is performed assuming that the impedance of the tissue layer is connected in parallel.

The trunk visceral adipose tissue impedance estimator is configured such that an electrical equivalent circuit of the trunk corresponds to a series circuit of the impedance of the internal organ tissue of the trunk and the impedance of the visceral adipose tissue of the trunk. 18. The trunk visceral / subcutaneous fat measurement device according to claim 17 , wherein the estimation is performed on the assumption that an impedance of a muscle tissue layer and an impedance of the trunk subcutaneous fat tissue layer are connected in parallel.

20. The trunk visceral / subcutaneous fat measurement according to claim 18 or 19 , further comprising respiratory fluctuation effect removing means for removing the influence of fluctuation due to breathing based on the impedance of the trunk measured in a sampling cycle shorter than the respiratory cycle time. apparatus.