Abstract: A health management device comprises at least four electrodes provided on a main body of an intelligent terminal unit; a constant current generating unit which applies a constant current to at least two electrodes among said at least four electrodes; a voltage detecting unit which detects a voltage of at least two electrodes among said at least four electrodes; a numeral input unit provided on said intelligent terminal unit; a display unit provided on said intelligent terminal unit; a switching unit which switches a function as an intelligent terminal unit into a function as a health management device and vice versa; and a control unit which calculates a health management indicator based on data input from said numeral input unit and a detected data from said voltage detecting unit and displays a calculated result on said display unit when said function being switched into the function as the health management device by said switching unit.

Abstract: The body fat percentage for a person is estimated from the BMI of the person by employing a multiple regression analysis using the reciprocal of the BMI (1/BMI) as the independent variable. In other embodiments, potentially independent and easily obtained variables such as age, sex, and ethnicity are also used in conjunction to provide precise estimates of the body fat percentage. Devices for estimating the body fat percentage can be implemented as calculators, smart scales, and Internet web sites.

Abstract: The present invention provides a handheld bioelectric impedance measuring apparatus in which four electrodes are arranged apart with one another on both end sides of an upper and a lower side surfaces of a main body respectively, and a display section and an operation section are arranged on a front surface of the main body, so that the finger of the left hand and that of the right hand may be prevented from coming into contact with each other to improve an accuracy of the measurement as well as a convenience in operation.

Abstract: A health management device comprises at least four electrodes provided on a main body of an intelligent terminal unit; a constant current generating unit which applies a constant current to at least two electrodes among said at least four electrodes; a voltage detecting unit which detects a voltage of at least two electrodes among said at least four electrodes; a numeral input unit provided on said intelligent terminal unit; a display unit provided on said intelligent terminal unit; a switching unit which switches a function as an intelligent terminal unit into a function as a health management device and vice versa; and a control unit which calculates a health management indicator based on data input from said numeral input unit and a detected data from said voltage detecting unit and displays a calculated result on said display unit when said function being switched into the function as the health management device by said switching unit.

Abstract: A health management device comprises at least four electrodes provided on a main body of an intelligent terminal unit; a constant current generating unit which applies a constant current to at least two electrodes among said at least four electrodes; a voltage detecting unit which detects a voltage of at least two electrodes among said at least four electrodes; a numeral input unit provided on said intelligent terminal unit; a display unit provided on said intelligent terminal unit; a switching unit which switches a function as an intelligent terminal unit into a function as a health management device and vice versa; and a control unit which calculates a health management indicator based on data input from said numeral input unit and a detected data from said voltage detecting unit and displays a calculated result on said display unit when said function being switched into the function as the health management device by said switching unit.

Abstract: A portable body fat monitor is provided having electrodes arranged so that the instrument is easily operated by a user, thereby facilitating accurate measurements. Embodiments include a portable body fat monitor having an insulating main body, shaped substantially like a rectangular parallelepiped. Four electrodes are spaced apart from one another on a side surface of the main body. A display unit, such as a liquid crystal display, is disposed on a front face of the main body, and an operator unit, such as a set of push buttons, is located below the display unit on the front face of the main body. To operate the monitor, a user enters numerical values representing his or her height and weight with the thumbs of their right and left hands. The middle and index fingers of the user's left hand are then brought into contact with two of the electrodes, respectively.