Abstract: A server apparatus includes: a communication unit configured to transmit a distribution video based on a demonstration video of a performer and receive a viewer video of a viewer watching the distribution video; a distribution video generation unit configured to generate a distribution video that includes a display area for displaying the demonstration video and an icon arrangement area for arranging an icon of the viewer watching the demonstration video corresponding to the display area; and a viewing situation video generation unit configured to generate a viewing situation video in which the viewer video is controlled to be displayed or not to be displayed in a display mode according to a positional relationship between the display area and the icon, wherein the generated viewing situation video is transmitted to a display of a distributing side.

Abstract: An exercise improvement guidance device includes: a hierarchical index storage unit that stores hierarchized indexes for improvement of an exercise motion; a problem index identification unit that evaluates the hierarchized indexes based on measurement data during an exercise and identifies a problem index; and a guidance information generating unit that generates guidance information for improvement of the problem index identified by the problem index identification unit. With the exercise improvement guidance device, a problem that leads to effective improvement of exercise motions can be identified, and the guidance information can be generated.

Abstract: In a physical strength evaluation system, a reference storage stores a walking heart rate reference in which a correspondence relationship of a standard value of a relative heart rate with respect to a walking speed is defined for every gender and every age, a speed acquisition unit acquires a measured value of a walking speed of a subject, a heart rate acquisition unit acquires a measured value of the relative heart rate of the subject. A standard value derivation unit derives the standard value of the relative heart rate corresponding to the measured value of the walking speed that has been acquired, based on the walking heart rate reference. A level determination unit determines an evaluation value of a physical strength level of the subject, based on a difference between the measured value of the relative heart rate and the standard value of the relative heart rate.

Abstract: Provided is a display control method for a display control device including a processor and a storage. The method includes generating first display data for a display to display user marks at intervals so as to be added one by one as a time elapses from a timing. The intervals each correspond to a user's step length of a user obtained based on measured data on running or walking of the user. The user marks each represent a position where a foot of the user lands by one step. The method further includes generating second display data for the display to display reference marks at intervals so as to be added one by one as the time elapses. The intervals each correspond to a predetermined reference step length. The reference marks each represent a position where a reference foot lands by one step.

Abstract: A power demand estimating apparatus includes a demand data memory, a demand estimator, and a display. The demand data memory stores plural power demand patterns and power demand amount data. The demand estimator selects, from the demand data memory, the demand pattern matching the environmental condition on an estimation day, obtains the maximum value of an power demand amount and the minimum value thereof at an expected temperature on the estimation day, calculates, using those pieces of information, the power demand amount per a unit time on the estimation day, and creates a demand estimating model. The display displays, together with the power demand pattern selected by the demand estimator, the demand estimating model.

Abstract: A power demand estimating apparatus includes a demand data memory, a demand estimator, and a display. The demand data memory stores plural power demand patterns and power demand amount data. The demand estimator selects, from the demand data memory, the demand pattern matching the environmental condition on an estimation day, obtains the maximum value of an power demand amount and the minimum value thereof at an expected temperature on the estimation day, calculates, using those pieces of information, the power demand amount per a unit time on the estimation day, and creates a demand estimating model. The display displays, together with the power demand pattern selected by the demand estimator, the demand estimating model.