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 weighing apparatus for weighing a mass of an object is provided with: a body; a load receiving device, a load detection device, an acting force detection device, and a data processing device configured to data-process an output of the load detection device as a weighed value in a mass unit.

Abstract: An energy consumption estimator (10) includes a body motion sensor (17), a first calculation unit (18), an acquisition unit, and a second calculation unit (19). The body motion sensor (17) detects body motion by a user. Based on the body motion detected by the body motion sensor (17), the first calculation unit (18) 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 (19) calculates the user's total energy derived from carbohydrates.

Abstract: A velocity calculation apparatus (100) includes an acceleration sensor (10), an Acc integration unit (20), and a control unit (50). The acceleration sensor (10) measures acceleration of a walking or running subject. The Acc integration unit (20) integrates the acceleration measured by the acceleration sensor (10), during a unit time (UT) longer than the walking or running cycle, thus to generate an integrated synthetic value. The control unit (50) applies the integrated synthetic value to an approximation established in advance so as to calculate the velocity (v) of the subject. With such operation that barely imposes computational load, the velocity (v) of the subject can be calculated with practically acceptable accuracy.