JP2006304998A5 - - Google Patents

Claims (10)

  In the trunk visceral fat measurement method for obtaining the amount of trunk visceral fat tissue using the bioimpedance of the trunk measured using the current application electrode pair and the voltage measurement electrode pair arranged on the trunk, one current application electrode Is placed on the skeletal muscle group that is arranged long in the longitudinal direction of the trunk from the umbilical position, and the skeletal muscle group that is arranged long in the longitudinal direction of the trunk abdomen is used as a virtual electrode layer to be inside the skeletal muscle tissue layer Measure the impedance of the rectus abdominis muscle tissue layer by increasing the amount of current applied to the internal organ tissue and visceral adipose tissue and arranging another voltage measurement electrode pair on the skeletal muscle group that is arranged long in the longitudinal direction of the trunk abdomen. Then, a trunk visceral fat measuring method characterized in that a trunk visceral fat tissue amount is obtained using the measured impedance of the rectus abdominis muscle tissue layer.   In the trunk visceral fat measuring device for obtaining the amount of trunk visceral fat tissue using the bioimpedance of the trunk measured using the current applying electrode pair and the voltage measuring electrode pair arranged on the trunk, the current applying electrode pair One of the current application electrodes is placed on the skeletal muscle group that is arranged long in the longitudinal direction of the trunk from the umbilical position, and the impedance of the rectus abdominis muscle layer on the skeletal muscle group that is arranged in the longitudinal direction of the trunk abdomen A trunk visceral fat measuring device, further comprising another voltage measuring electrode pair for measuring the above.   The trunk skeletal muscle tissue layer impedance estimation means for estimating the impedance of the trunk skeletal muscle tissue layer based on the impedance of the rectus abdominis muscle tissue layer, and the amount of internal organ tissue of the trunk based on the body specifying information And internal organ tissue impedance estimation means for estimating the impedance of the internal organ tissue of the trunk based on the estimated internal organ tissue amount and body specifying information of the trunk, and the bioimpedance of the trunk A trunk visceral adipose tissue impedance estimating means for estimating the impedance of the trunk visceral fat tissue based on the estimated impedance of the trunk skeletal muscle tissue layer and the impedance of the internal organ tissue of the trunk, and the estimated trunk Further provided is a trunk visceral fat tissue amount estimation means for estimating the trunk visceral fat tissue amount based on the impedance of the visceral fat tissue and the body specifying information. Trunk visceral fat measuring apparatus according to claim 2.   A trunk skeletal muscle tissue layer impedance estimating means for estimating the impedance of the skeletal muscle tissue layer of the trunk based on the impedance of the rectus abdominis muscle tissue layer and the body specifying information; and a trunk skeletal muscle tissue layer impedance estimating means based on the body specifying information An internal organ tissue impedance estimating means for estimating an internal organ tissue amount and estimating an impedance of the internal organ tissue of the trunk based on the estimated internal organ tissue amount and body specifying information of the trunk; Trunk visceral adipose tissue impedance estimation means for estimating the impedance of the trunk visceral adipose tissue based on the biological impedance of the trunk, and the impedance of the estimated trunk skeletal muscle tissue layer and the impedance of the internal organ tissue of the trunk Estimating the amount of trunk visceral adipose tissue based on the estimated impedance and body specific information of the trunk visceral adipose tissue Trunk visceral fat measuring apparatus according to claim 2, further comprising a means.   A third voltage measurement electrode pair for measuring the impedance of the trunk subcutaneous fat tissue layer is further arranged, and one voltage measurement electrode of the third voltage measurement electrode pair is controlled by the influence of the spreading resistance directly under the current application electrode. The other voltage measurement electrode is disposed at a position away from the current application electrode until the influence of the spreading resistance directly under the current application electrode is reduced, and the voltage measurement electrode pair The trunk visceral fat measuring device according to any one of claims 2 to 4, wherein the trunk visceral fat tissue amount is determined using the impedance of the trunk subcutaneous fat tissue layer measured by the method.   A subcutaneous fat tissue layer measured by the voltage measurement electrode pair, wherein one current application electrode of the second current application electrode pair is further arranged at a position close to the one voltage measurement electrode of the third voltage measurement electrode pair. The trunk visceral fat measuring device according to claim 5, wherein the trunk visceral fat tissue amount is obtained using the impedance of the trunk.   The trunk visceral adipose tissue impedance estimating means is configured such that an electrical equivalent circuit of the trunk corresponds to a serial circuit of an impedance of the internal organ tissue of the trunk and an impedance of the trunk visceral fat tissue. The trunk visceral fat measuring device according to claim 3 or 4, 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 trunk visceral fat tissue of the trunk. The trunk visceral fat measuring device according to claim 5 or 6, wherein 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.   The trunk visceral fat measuring apparatus according to any one of claims 2 to 8, wherein the skeletal muscle group arranged long in the longitudinal direction of the trunk abdomen is a rectus abdominis muscle tissue layer.   The trunk visceral fat measuring apparatus according to claim 9, wherein the current application electrode pair is disposed between an upper part of the rectus abdominis muscle layer and a lower back of the trunk on the trunk front side.