JP2007054373A5 - - Google Patents

Claims (7)

  In the trunk fat measurement method for determining the amount of trunk fat tissue using the trunk impedance measured using the current application electrode pair and the voltage measurement electrode pair arranged on the trunk, one trunk of the trunk abdomen One common electrode having a large electrode area to be used as a current application electrode and a voltage measurement electrode is disposed, and the current application electrode is disposed at each of two sites useful for measuring the subcutaneous adipose tissue of the other flank. A voltage measurement electrode is arranged near the middle of the current application electrode, and the potential difference between the common electrode and the voltage measurement electrode is measured while switching the energization combination between the common electrode and the two current application electrodes. Thus, two trunk impedances controlled by subcutaneous fat tissue and one trunk impedance controlled by mid-trunk tissue in the two regions are obtained, and these three Trunk fat measuring method for calculating the torso impedance from trunk bioimpedance.   In the trunk fat measurement device for obtaining the amount of trunk adipose tissue using the trunk impedance measured using the current application electrode pair and the voltage measurement electrode pair arranged on the trunk, on one flank of the trunk abdomen One common electrode having a large electrode area to be used as a current application electrode and a voltage measurement electrode, and a current application electrode arranged at two sites useful for measuring subcutaneous adipose tissue of the other flank, The potential difference between the common electrode and the voltage measurement electrode while switching the combination of energization between the voltage measurement electrode arranged near the middle of these current application electrodes and the common electrode and the two current application electrodes Measuring means for measuring two trunk impedances and mid-trunk tissue controlled by subcutaneous adipose tissue at the two sites based on the measurement values measured by the measuring means Seeking one trunk bioimpedance distribution, trunk fat measurement device and a trunk impedance calculating means for calculating the body trunk impedance from these three trunk bioimpedance.   The measurement means includes switching means for switching a combination of energization between the common electrode and the two current application electrodes, and the switching means includes two trunk impedances controlled by subcutaneous fat tissue at the two sites. Each of the common electrode and each current application electrode is energized, and when determining the trunk impedance controlled by the mid-trunk tissue, the two current application electrodes are short-circuited and short-circuited. The trunk fat measuring device according to claim 2, wherein the common electrode and each current application electrode are connected so that a current is applied between the current application electrode and the common electrode.   The trunk fat measuring device according to claim 2 or 3, wherein the common electrode has an electrode area that allows the influence of spreading resistance and contact resistance to be ignored.   Trunk skeletal muscle that estimates trunk skeletal muscle tissue volume based on body specific information and estimates impedance of trunk skeletal muscle tissue layer based on the estimated trunk skeletal muscle tissue volume and body specific information Based on the tissue layer impedance estimating means and the body specifying information, the amount of organ tissue in the trunk is estimated, and the impedance of the organ tissue in the trunk is calculated based on the estimated amount of organ tissue in the trunk and the body specifying information. Torso internal organ tissue impedance estimating means, torso impedance calculated by the calculating means, and torso skeletal muscle tissue layer impedance and torso internal organ tissue impedance based on the estimated torso organ tissue impedance Trunk visceral adipose tissue impedance estimating means for estimating impedance, and the estimated trunk visceral adipose tissue impedance and body The trunk fat measurement according to any one of claims 2 to 4, further comprising a trunk visceral adipose tissue amount estimation means for estimating a trunk visceral adipose tissue amount based on the specified information. apparatus.   The subcutaneous adipose tissue layer impedance of each part is obtained from the two trunk impedances controlled by the subcutaneous fat tissue and the one trunk impedance controlled by the mid-trunk tissue at the two parts. Trunk subcutaneous fat tissue layer impedance estimating means for estimating impedance of subcutaneous fat tissue layer of trunk based on layer impedance and body specifying information, the estimated trunk subcutaneous fat tissue layer impedance, and body specifying information The trunk fat measurement device according to claim 2, further comprising: a subcutaneous fat tissue amount estimation unit that estimates a subcutaneous fat tissue amount of the trunk based on the information.   The trunk fat measurement apparatus according to any one of claims 2 to 6, wherein the two sites useful for measuring the subcutaneous fat tissue are a lateral portion of the umbilicus and a lower scapula around the umbilicus.