Abstract: An ingredient determining apparatus configured to determine nutritional ingredients in food provided for a user. The ingredient determining apparatus includes a processor configured to obtain a muscle index indicating a degree of muscle mass of the user and a fat index indicating a degree of fat mass of the user, and determine the nutritional ingredients based on the muscle index and the fat index.

Abstract: An acetone concentration estimate device acquires a measured acetone concentration measuring acetone excreted from a user, acquires an elapsed time which has elapsed since the user ate a meal, and estimates an acetone concentration, which is a ketone body concentration of when an amount of change in blood sugar level of the user per given unit of time is stable, based on the acquired current measured acetone concentration and on the acquired elapsed time, and outputs information corresponding to the estimated acetone concentration.

Abstract: A group system, based on physical information indicating a physical state of a user, determines a user type representing the physical state of the user from one or more predetermined points of view, and registers a user whose user type has been determined for a group to which another user having a commonality belongs. A user is registered for a group under a determined user type, and therefore can communicate with another user without the user’s physical information being known directly to the other user.

Abstract: A system for determining the health level of a user is provided. The health level determination system (520) includes a bioelectrical impedance acquisition section (53) that acquires bioelectrical impedances of a plurality of body parts of a user, a body composition estimation section (54) that estimates the body composition of a plurality of items of the user from the bioelectrical impedances of the plurality of body parts, and a body composition estimation section (54) that estimates the body composition of a plurality of items of the user based on the body composition of the plurality of items, at least partially, indirectly, or directly. The body composition estimation section (54) estimates the plurality of body compositions of the user from the bioelectrical impedances of the plurality of body parts.

Abstract: A purpose of the disclosure is to provide a measurement device for human bodies that can encourage a person who is reluctant to measure body composition to use the device. A measurement device has: an electric resistance value acquisition unit for acquiring an electric resistance value of one or more parts of a body of a person to be measured; and a type determination unit for using the electric resistance value to determine a type representing a physical characteristic of the person to be measured from one or more predetermined points of view.

Abstract: A muscle mass estimation method including acquiring a height of a living organism, acquiring an electrical resistance value measured for the living organism, and computing a muscle mass of the living organism using a calculation formula including a first variable including the height of the living organism and the electrical resistance value, and a second variable including the electrical resistance value.

Abstract: A biometric information measuring device comprising a control part that determines a degree of matching with respect to a purpose of use that is set in measured data related to multiple body compositions, based on a purpose-of-use matching degree relationship in which a degree of matching with respect to a purpose of use is associated according to a combination relationship about change directions of data related to the multiple body compositions associated by a display order with respect to the purpose of use.

Abstract: A body composition measurement system (10) comprises: a body composition obtaining section (363) that obtains measured values of body composition of a user; and a positioning information determination section (364) that obtains positioning information, which is information indicating a position of the measured value of the user in a population. The body composition obtaining section (363) obtains the measured values by measuring the body composition of the user. The positioning information determination section (364) determines the positioning information using a positioning calculation formula or a positioning table stored in the memory unit (35). The positioning calculation formula or positioning table is prepared for each category such as age, gender, race, sport type, company, etc. The positioning information determination section (364) selects any category to determine the positioning information.

Abstract: A simplified BIA body composition analyzer (100) as an in-body measurement system, comprising: a memory unit (110) storing in-body information obtained by a measurement with a first precision as a reference value; a low-precision measurement unit (10) obtaining low-precision in-body information by inputting a measured value obtained by a measurement with a second precision that is lower than the first precision into a predetermined algorithm; a correction unit (112) correcting the algorithm or the low-precision in-body information based on the reference values stored in the memory unit (110) and the degree of importance placed on the reference values; and an output unit (106) outputting the low-precision in-body information obtained by the low-precision measurement unit (104) using the algorithm corrected by the correction unit (112), or the low-precision in-body information obtained by the low-precision measurement unit (104) and corrected by the correction unit (112), as corrected in-body information.

Abstract: An ingredient determining apparatus configured to determine nutritional ingredients in food provided for a user. The ingredient determining apparatus includes a processor configured to obtain a muscle index indicating a degree of muscle mass of the user and a fat index indicating a degree of fat mass of the user, and determine the nutritional ingredients based on the muscle index and the fat index.

Abstract: A biological gas detection device acquires a reference output value that is an output value outputted from a semiconductor gas sensor in a reference air sample, the semiconductor gas sensor having sensitivity to an interfering gas and a target gas contained in a biological gas, acquires a target gas concentration that is a concentration of the target gas measured based on a first output value, the first output value being outputted from the semiconductor gas sensor during measurement of the biological gas, corrects the target gas concentration based on a second output value and the reference output value, the second output value being outputted from the semiconductor gas sensor in an air sample prior to measurement of the biological gas; and outputs information according to the corrected target gas concentration.

Abstract: A muscle mass estimation method including acquiring a height of a living organism, acquiring an electrical resistance value measured for the living organism, and computing a muscle mass of the living organism using a calculation formula including a first variable including the height of the living organism and the electrical resistance value, and a second variable including the electrical resistance value.

Abstract: The invention provides a poor physical condition determination device, method, and program enabling simple determination of a physical condition level. A poor physical condition determination device 10 acquires a ketone concentration measurement measuring ketone excreted from a user, determines a physical condition level related to the physical condition of the user based on the acquired ketone concentration measurement, and outputs a determination result.

Abstract: The invention provides a physical change evaluation device, method, and program capable of easily evaluating physical change from the past to the present, and from the present into the future. A physical change evaluation device 10 acquires a ketone concentration measurement measuring ketone excreted from a user, acquires physical data relating to the body of the user, evaluates physical change in the user based on the acquired ketone concentration measurement and the physical data, and outputs an evaluation result.

Abstract: An acetone concentration estimate device acquires a measured acetone concentration measuring acetone excreted from a user, acquires an elapsed time which has elapsed since the user ate a meal, and estimates an acetone concentration, which is a ketone body concentration of when an amount of change in blood sugar level of the user per given unit of time is stable, based on the acquired current measured acetone concentration and on the acquired elapsed time, and outputs information corresponding to the estimated acetone concentration.

Abstract: A biological gas detection device acquires a reference output value that is an output value outputted from a semiconductor gas sensor in a reference air sample, the semiconductor gas sensor having sensitivity to an interfering gas and a target gas contained in a biological gas, acquires a target gas concentration that is a concentration of the target gas measured based on a first output value, the first output value being outputted from the semiconductor gas sensor during measurement of the biological gas, corrects the target gas concentration based on a second output value and the reference output value, the second output value being outputted from the semiconductor gas sensor in an air sample prior to measurement of the biological gas; and outputs information according to the corrected target gas concentration.

Abstract: A body composition change prediction device acquires a measured acetone concentration measuring acetone excreted from a user, acquires current body composition information and past body composition information of the user, computes a prediction value predicting the body composition information at a given future point in time based on information relating to the body composition of the user, and determines a fat burning style of the user based on the acetone concentration and the current body composition information. The body composition change prediction device weights the prediction value based on a weight, the weight being set according to the burning style and being a greater weight the higher the measured ketone body concentration, and outputs information according to the weighted prediction value.

Abstract: A gas measurement apparatus of the present invention includes a gas sensor and is capable of being in any one of an open state in which the gas sensor is connected to an outside air and a closed state in which the gas sensor is cut off from an outside air. The gas measurement apparatus includes: an acquisition unit; and a determination unit. The acquisition unit acquires a detection value of the gas sensor in the open state and a detection value of the gas sensor in the closed state. The determination unit compares the detection value of the gas sensor acquired in the open state and the detection value of the gas sensor acquired in the closed state to thereby determine the state of the gas sensor.

Abstract: An energy consumption estimator includes a body motion sensor, a first calculation unit, an acquisition unit, and a second calculation unit. The body motion sensor detects body motion by a user. Based on the body motion detected by the body motion sensor, the first calculation unit calculates the user's total energy consumption. The acquisition unit acquires the user's energy consumption derived from fats and lipids. Based on the energy consumption derived from fats and lipids and on the total energy consumption, the second calculation unit calculates the user's total energy derived from carbohydrates.

Abstract: A gas measurement apparatus includes: a body unit including a delivery port in which a user's breath is delivered, a gas sensor connected to the inside of the delivery port, and an absorbent housing unit that houses an absorbent; a cover unit capable of being operated to be slid in a predetermined direction with respect to the body unit and thereby being set to one of an open state in which the delivery port and the absorbent housing unit are exposed and a closed state in which the delivery port and the absorbent housing unit are cut off from an outside air, wherein at least in the closed state, a space in which the gas sensor is provided and the inside of the absorbent housing unit are connected to each other.