JP2006304999A5 - - Google Patents

Claims (10)

  In a trunk visceral fat measurement method for obtaining the amount of trunk visceral fat tissue using the bioimpedance of the trunk measured using a current application electrode pair and a voltage measurement electrode pair, the region where the subcutaneous fat tissue layer is thin, skeletal muscle Place a pair of current application electrodes on the thin or thin area of the muscle layer of the tissue layer and apply at least a pair of currents on the umbilical circumference or at a distance from the umbilical circumference in the longitudinal direction of the trunk. An electrode pair or at least one voltage measurement electrode pair is further arranged, and internal tissue information around the umbilical circumference is sequentially measured by a combination of a plurality of electrode pairs by the current application electrode pair and the voltage measurement electrode pair. A trunk visceral fat measuring method, comprising: measuring a biological impedance of a trunk by processing a plurality of pieces of information.   The trunk visceral fat measurement method according to claim 1, wherein the part is a section between the umbilicus and the upper edge of the iliac crest, or a connecting tendon between the rectus abdominis and the external oblique muscle.   In a trunk visceral fat measuring device that determines the amount of trunk visceral adipose tissue using the bioimpedance of the trunk measured using a current applying electrode pair and a voltage measuring electrode pair, the region where the subcutaneous fat tissue layer is thin, skeletal muscle It has a pair of current-applying electrodes arranged in a thin area where the muscle abdomen of the tissue layer is absent or thin, and is further arranged at a position on the umbilical circumference or at a certain distance in the trunk longitudinal direction from the umbilical circumference. It has at least a pair of current application electrodes or at least a pair of voltage measurement electrodes, and sequentially measures internal tissue information around the umbilical circumference by a combination of a plurality of electrode pairs by the current application electrode pair and the voltage measurement electrode pair. A trunk visceral fat measuring device comprising means for processing the measured plurality of pieces of information to measure a biological impedance of the trunk.   Trunk bioimpedance measuring means for measuring the bioimpedance of the trunk, trunk skeletal muscle tissue layer impedance estimating means for estimating the impedance of the trunk skeletal muscle tissue layer based on the body specifying information, and body specifying information A trunk organ tissue impedance estimation means for estimating the impedance of the organ tissue in the trunk based on the bioimpedance of the measured trunk, the impedance of the trunk skeletal muscle tissue layer and the organ tissue in the trunk Trunk visceral fat tissue impedance estimating means for estimating the impedance of the trunk visceral fat tissue based on the impedance, and the trunk visceral fat tissue amount based on the estimated impedance of the visceral fat tissue and body specifying information The trunk visceral fat measuring device according to claim 3, further comprising: a trunk visceral fat tissue amount estimating means for estimating . The trunk skeletal muscle tissue layer impedance estimating means estimates the trunk skeletal muscle tissue amount based on the body specifying information, and based on the estimated trunk skeletal muscle tissue amount and the body specifying information Estimate skeletal muscle tissue layer impedance,
The trunk organ tissue impedance estimation means estimates the internal organ tissue amount of the trunk based on the body specifying information, and the body based on the estimated internal organ tissue amount of the trunk and the body specifying information. The trunk visceral fat measuring device according to claim 4, wherein the trunk organ tissue impedance is estimated.   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 4 or 5, wherein the estimation is performed assuming that the impedance of the tissue layer is connected in parallel.   The current application electrode pair is energized such that the straight route between the current application electrode pair passes on the umbilical circumference surface, on the adjacent surface parallel to the umbilical circumference surface in the trunk longitudinal direction, or obliquely through the umbilical circumference surface The trunk visceral fat measuring device according to any one of claims 3 to 6, wherein the trunk visceral fat measuring device is arranged so as to be located on any one of the planes.   8. The bioelectrical impedance measuring means includes means for selectively switching both electrode pairs so that the current application electrode pair and the voltage measurement electrode pair can be shared. The trunk visceral fat measuring device described in 1.   The trunk visceral fat measuring device according to any one of claims 3 to 8, wherein the bioimpedance measuring means includes means for averaging the plurality of pieces of measured information.   The trunk visceral fat measuring device according to claim 9, wherein the averaging process is a weighted averaging process based on a contribution sensitivity of a measurement site of a trunk abdomen.