Information processing device, information processing system, and program

Abstract

To provide a technique for deriving a calorie intake that makes it easy for a user to lose weight.SOLUTION: An information processing device 20 comprises an acquisition unit 32 configured to acquire a basal metabolic rate per unit period of a user as measured by a measurement device 10, and a derivation unit 34 configured to derive a recommended calorie intake per unit period for the user on the basis of the acquired basal metabolic rate.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to techniques for assisting in weight loss. [Background technology]

[0002] There is known a technique for acquiring metabolic change information showing changes in the metabolism of a person being measured during a diet period, and generating and outputting guidance information for making the person being measured safely diet based on the acquired metabolic change information (see, for example, Patent Document 1). The guidance information includes information informing the person that metabolism has decreased. This allows the person being measured to refrain from dieting, such as restricting food intake, which would further decrease metabolism, or to exercise to improve metabolism. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-041287 A Summary of the Invention [Problem to be solved by the invention]

[0004] Dietary therapy is important for weight loss, and setting the amount of food eaten is the key to successful weight loss. Therefore, it is desirable to allow users to grasp the calorie intake amount that will help them lose weight.

[0005] The present disclosure has been made in consideration of these problems, and one of its exemplary objectives is to provide a technique that enables a user to derive a calorie intake that facilitates weight loss. [Means for solving the problem]

[0006] In order to solve the above problems, an information processing device according to one aspect of the present disclosure includes an acquisition unit that acquires a user's basal metabolic rate per unit period measured by a measurement device, and a derivation unit that derives a calorie intake per unit period recommended to the user based on the acquired basal metabolic rate.

[0007] Another aspect of the present disclosure is an information processing system. The information processing system includes a measurement device that measures a basal metabolic rate of a user per unit period, and an information processing device. The information processing device includes an acquisition unit that acquires the basal metabolic rate measured by the measurement device, and a derivation unit that derives a calorie intake per unit period recommended to the user based on the acquired basal metabolic rate.

[0008] Any combination of the above components, or mutual substitution of the components or expressions of the present disclosure between methods, systems, etc., are also valid aspects of the present disclosure. Effect of the Invention

[0009] According to the present disclosure, it is possible to derive a calorie intake amount that allows a user to easily lose weight. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a graph showing the relationship between the ratio of calorie intake to calorie expenditure at the start of weight loss and the ratio of basal metabolic rate one week later to the basal metabolic rate at the start of weight loss for multiple subjects. [Diagram 2] FIG. 1 is a graph showing the relationship between the ratio of calories ingested to calories burned one week after starting weight loss and the ratio of basal metabolic rate two weeks after starting weight loss to basal metabolic rate at the start of weight loss for multiple subjects. [Diagram 3] FIG. 1 is a block diagram of an information processing system according to an embodiment. [Figure 4] FIG. 13 is a diagram showing an example of the relationship between a user's target weight loss rate and the elapsed time from the start of weight loss. [Diagram 5] 5 is a flowchart showing a process at the start of weight reduction in the information processing device of FIG. 1; [Figure 6] 10 is a flowchart showing a process during a reduction period of the information processing device of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The present inventors have studied weight loss and have obtained the following findings: Obesity is a state in which fat accumulates excessively, and is defined as a condition in which the BMI (Body Mass Index) is 25 kg / m 2 It refers to the above. A condition in which health problems such as type 2 diabetes and arteriosclerosis are caused by obesity is called obesity. Obesity is a life-threatening condition, and weight loss is medically necessary. When losing weight, the basis is to combine diet therapy, exercise therapy, and behavioral therapy so that the calories ingested through food are less than the calories burned through exercise and metabolism. However, it is not easy for obese patients to lose weight, and even if they do lose weight temporarily, they often return to their original obese state.

[0012] Among dietary therapy, exercise therapy, and behavioral therapy, dietary therapy is the most important for weight loss, and setting and adjusting the amount of food eaten is the key to successful weight loss. However, because there are individual differences in calorie consumption due to differences in gender, age, amount of exercise, etc., setting the calorie intake for weight loss is not necessarily easy.

[0013] Theoretically, if calorie intake is equal to calorie expenditure, weight will not increase or decrease, and if calorie intake is less than calorie expenditure, weight will decrease. In addition, all calories ingested come from food, but about 60% of calories consumed come from basal metabolic rate, about 30% from physical activity, and about 10% from heat production through eating. In other words, basal metabolic rate accounts for a large proportion of calories consumed, so when setting calorie intake for weight loss, it is important to understand basal metabolic rate.

[0014] When determining calorie intake in obesity treatment, it is common to refer to the theoretical value of basal metabolism calculated by the Harris-Benedict formula or the standard value of basal metabolism for Japanese people provided by the Ministry of Health, Labor and Welfare. However, the theoretical value of basal metabolism often deviates from the actual value. In addition, in order to maintain homeostasis of energy balance, the basal metabolism increases when weight increases with an increase in calorie intake, and decreases when weight decreases with a decrease in calorie intake. For the above reasons, when losing weight, it is desirable to determine the correct basal metabolism and set the calorie intake, and to adjust the calorie intake taking into account the fluctuation of the basal metabolism. However, a weight loss method that takes into account the fluctuation of the basal metabolism has not yet been established.

[0015] The present inventors investigated the correlation between calorie intake, body weight, and basal metabolic rate during weight loss in patients undergoing obesity treatment. Calorie consumption was calculated from the patient's basal metabolic rate and activity level. The analysis showed the following.

[0016] (1) A significant correlation was found between the "calories taken in / calories burned" ratio set at the start of weight loss and the change in basal metabolic rate one week after starting weight loss.

[0017] FIG. 1 shows the relationship between the ratio of calorie intake to calorie expenditure at the start of weight loss for multiple subjects and the ratio of basal metabolic rate one week later to the basal metabolic rate at the start of weight loss. The basal metabolic rate is maintained for each subject at the start of weight loss. Each subject generally maintains the ratio of calorie intake to calorie expenditure at the start of weight loss until one week after the start of weight loss. In this measurement result, the correlation coefficient is 0.49 and the p-value is less than 0.05. Therefore, there is a significant correlation between the ratio of calorie intake to calorie expenditure at the start of weight loss and the ratio of basal metabolic rate one week later to the basal metabolic rate at the start of weight loss.

[0018] (2) No correlation was found between the "calories in / calories out" ratio set at the start of weight loss and the change in weight one week after starting weight loss.

[0019] (3) No correlation was found between weight change and basal metabolic rate change during the first week of weight loss.

[0020] From the above analysis results, it was found that changes in basal metabolic rate are determined more by calorie intake than by changes in body weight.

[0021] FIG. 2 shows the relationship between the ratio of calorie intake to calorie consumption one week after the start of weight loss and the ratio of basal metabolic rate two weeks after the start of weight loss to the basal metabolic rate at the start of weight loss for multiple subjects. Each subject generally maintained the ratio of calorie intake to calorie consumption one week after the start of weight loss until two weeks after the start of weight loss. In this measurement result, the correlation coefficient is 0.60 and the p value is less than 0.05. Therefore, there is a significant correlation between the ratio of calorie intake to calorie consumption one week after the start of weight loss and the ratio of basal metabolic rate two weeks after the start of weight loss to the basal metabolic rate at the start of weight loss.

[0022] Figure 2 shows that if the ratio of calorie intake to calories burned one week after starting weight loss, i.e. when the basal metabolic rate and body weight have already decreased, is about 40-60%, the basal metabolic rate will further decrease two weeks after starting weight loss. On the other hand, if the ratio of calorie intake to calories burned one week after starting weight loss is 70% or more, the decrease in basal metabolic rate two weeks after starting weight loss will be mild, and if the calorie intake ratio is 90-100%, the basal metabolic rate will recover to the value at the start of weight loss two weeks after starting weight loss.

[0023] In other words, even when weight loss has led to a decrease in basal metabolic rate, i.e., when a person reaches a plateau where further weight loss is often difficult, the basal metabolic rate will eventually recover if the calorie intake is matched to the calories burned, i.e., the ratio of calories taken in to calories burned is 90-100%.

[0024] It is generally known that as weight loss progresses, the basal metabolic rate decreases, making it more difficult to lose weight. However, these findings make it possible to provide a sustainable weight loss program by restoring basal metabolic rate or by making the decline in basal metabolic rate milder by reviewing calorie intake, even during weight loss plateaus.

[0025] Based on these findings, the inventors have found that it is possible to facilitate weight loss by measuring the user's basal metabolic rate by indirect calorimetry at the start of weight loss and at a predetermined time during the weight loss process, and deriving the calorie intake that the user should take in based on the measured basal metabolic rate. The embodiment has been devised based on such a consideration, and its specific configuration will be described below.

[0026] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the description, the same elements are denoted by the same reference numerals, and duplicated description will be omitted as appropriate.

[0027] 3 is a block diagram of an information processing system 1 according to an embodiment. The information processing system 1 can also be called a weight loss support system. Users of the information processing system 1 are not limited to obese patients, but also include non-obese users who are on a diet to maintain or improve their physical condition. The information processing system 1 includes a measurement device 10 and an information processing device 20.

[0028] The measuring device 10 is a breath metabolism measuring device that measures the basal metabolic rate of a user per unit period by indirect calorimetry. An example in which the unit period is one day will be described below. As the measuring device 10, for example, a known device such as Metabolic Analyzer MedGem (manufactured by Microlife) or LUMEN (manufactured by Meta Flow) can be used. The measuring device 10 outputs information on the measured basal metabolic rate to the information processing device 20 by wired communication or wireless communication. The measuring device 10 does not need to be able to communicate with the information processing device 20. In this case, the user only needs to read the basal metabolic rate measured by the measuring device 10 and input the read value to the information processing device 20.

[0029] The information processing device 20 is a mobile terminal carried by a user, such as a smartphone or a tablet terminal, but may also be a wearable device, etc. The information processing device 20 does not necessarily have to be a portable electronic device, and may also be a stationary personal computer, etc.

[0030] The information processing device 20 presents the user with a calorie intake per day based on the basal metabolic rate measured at the start of the user's weight loss, and thereafter presents the user with a new calorie intake per day based on the basal metabolic rate and body weight measured at one or more predetermined times during the weight loss. The predetermined time is not particularly limited, and may be once a week, once a month, or at a time specified by the user. The intervals between adjacent predetermined times do not have to be equal.

[0031] The user loses weight by eating the food with the calorie intake per day presented at the start of the weight loss program, and maintains this calorie intake until a new calorie intake is presented. If a new calorie intake is presented at a predetermined time during the weight loss program, the user switches to the food with the presented calorie intake and continues the weight loss program.

[0032] The information processing device 20 includes a display unit 22, an input unit 24, a processing unit 26, and a storage unit 28. The display unit 22 is a display device such as a liquid crystal display. The input unit 24 includes, for example, a touch panel provided on the display surface of the display unit 22, into which a user's touch operation for selecting an icon displayed on the display unit 22, a character on a keyboard, or the like is input. The input unit 24 outputs an operation signal generated by the touch operation to the processing unit 26. When the information processing device 20 is a personal computer, the input unit 24 may include a keyboard, a mouse, or the like into which a user's operation is input.

[0033] The processing unit 26 includes a reception unit 30, an acquisition unit 32, a derivation unit 34, and a presentation unit 36. The configuration of the processing unit 26 can be realized in hardware by the CPU, memory, and other LSI of any computer, and in software by a program loaded into memory, but here, functional blocks realized by cooperation between them are depicted. Therefore, it will be understood by those skilled in the art that these functional blocks can be realized in various forms by only hardware, only software, or a combination of both.

[0034] (Processing when weight loss begins) The measuring device 10 measures the basal metabolic rate of the user at the start of weight loss, and outputs information on the measured basal metabolic rate to the information processing device 20. The start time of weight loss can be set arbitrarily by the user, and the start time of weight loss is the time when the user inputs an instruction to start weight loss into the input unit 24.

[0035] The receiving unit 30 receives an input operation of the user's daily energy expenditure due to physical activity based on the operation signal output from the input unit 24, and outputs the received information on the energy expenditure to the acquiring unit 32. For example, the user answers questions in an International Standardized Physical Activity Questionnaire in advance, and the energy expenditure due to physical activity can be estimated based on the answers. Note that the display unit 22 may display the questions in the International Standardized Physical Activity Questionnaire, the user may input the answers to the input unit 24, and the processing unit 26 may estimate the energy expenditure due to physical activity based on the information on the answers input to the input unit 24.

[0036] The receiving unit 30 receives an input operation of the user's weight at the start of weight loss, and stores the received weight information in the storage unit .

[0037] The acquisition unit 32 acquires the basal metabolic rate output from the measurement device 10 and the energy consumption due to physical activity output from the reception unit 30, and outputs the acquired information to the derivation unit .

[0038] The derivation unit 34 derives the user's daily calorie consumption based on the basal metabolic rate, the energy consumption by physical activity, and the diet-induced thermogenesis per day output from the acquisition unit 32. The diet-induced thermogenesis may be stored in the storage unit 28 as a predetermined value, or may be set to 10% of the calorie intake as a variable of the calorie intake. The derivation unit 34 determines the calorie consumption as the sum of the basal metabolic rate, the energy consumption by physical activity, and the diet-induced thermogenesis.

[0039] The derivation unit 34 determines the ratio of the calorie intake to the calorie consumption derived, i.e., "calorie intake / calorie consumption×100", to be equal to or greater than a predetermined first threshold, derives the calorie intake so as to satisfy the determined ratio, and outputs the derived calorie intake to the presentation unit 36. The first threshold can be appropriately determined through experiments, and is, for example, 70%. In other words, the derivation unit 34 derives the calorie intake so that the ratio of the calorie intake to the calorie consumption is equal to or greater than the first threshold.

[0040] The ratio of calorie intake to calorie consumption at the start of weight loss may be preset to a first threshold value, or may be set to 75%, 80%, etc. by a doctor or other person depending on the user's condition and target weight when treating the user for obesity. The upper limit of the ratio of calorie intake at the start of weight loss may be, for example, 90%, and can be appropriately determined through experiments.

[0041] The presentation unit 36 ​​presents the calorie intake at the start of weight loss output from the derivation unit 34 to the user via the display unit 22. The display unit 22 displays the calorie intake under the control of the presentation unit 36. The display unit 22 may display, for example, in addition to the calorie intake, examples of breakfast, lunch, and dinner menus that satisfy the calorie intake.

[0042] From the measurement results in Figure 1, if the ratio of calorie intake to calorie expenditure at the start of weight loss is 70% or more, the decrease in basal metabolic rate one week after starting weight loss is likely to be mild, i.e., less than about 10%, which will increase the chances of successful weight loss.

[0043] In addition, although not shown in the figure, measurements of multiple subjects other than the subjects in Figure 1 showed that the average "calories in / calories out x 100" at the start of weight loss for 13 subjects who successfully lost 5-15% of their weight in six months was 74.3%. Therefore, if "calories in / calories out x 100" is 70% or more at the start of weight loss, it can be said that weight loss is likely to be successful.

[0044] On the other hand, in Figure 1, if the "calories in / calories out x 100" is less than 70% when you start losing weight, your basal metabolic rate may fall by more than 10% one week after you start losing weight. If your basal metabolic rate falls too much, your weight loss will not progress and your weight will stagnate, making it difficult to succeed in losing weight.

[0045] (Treatment at designated times during weight loss) The measurement device 10, the reception unit 30, the acquisition unit 32, the derivation unit 34, and the presentation unit 36 ​​perform the following processes at each of the predetermined periods during weight loss.

[0046] At a predetermined time, the notifying unit 36 ​​notifies the user via the display unit 22 that the basal metabolic rate and body weight should be measured.

[0047] The measurement device 10 measures the basal metabolic rate of the user for a predetermined period of time, and outputs information on the measured basal metabolic rate to the information processing device 20.

[0048] The receiving unit 30 receives an input operation of the user's weight for a predetermined period of time, and outputs the received weight information to the acquiring unit 32.

[0049] The acquisition unit 32 acquires the user's basal metabolic rate output from the measurement device 10 and the user's body weight output from the acceptance unit 30, and outputs the acquired information to the derivation unit .

[0050] When the basal metabolic rate at a predetermined time has decreased by more than a predetermined percentage from the basal metabolic rate at the start of weight loss, the derivation unit 34 determines the ratio of calorie intake to calories burned to be equal to or greater than a second threshold and equal to or less than 100%. The predetermined percentage is, for example, 10%. The second threshold is greater than the first threshold, for example, 80%. The predetermined percentage and the second threshold can be appropriately determined through experiments. In this case, the derivation unit 34 may determine the current calorie intake ratio to be, for example, 10% greater than the previously determined calorie intake ratio.

[0051] For example, if the ratio of calorie intake to calorie consumption is 70% when weight loss is started, and the basal metabolic rate after one week has decreased by more than 10% from the value at the start of weight loss, the user may be eating the wrong amount. This is because, according to the results of Figure 2, if the ratio of calorie intake at the start of weight loss is 70%, there is a high probability that the decrease in basal metabolic rate after one week will be about 10% or less.

[0052] If the basal metabolic rate falls too far below the value at the start of weight loss, weight loss will not progress and weight will stagnate. In the embodiment, if the basal metabolic rate falls too far, the ratio of calorie intake to calorie consumption is set to a value in the range of 80 to 100%, making it easier to increase the basal metabolic rate.

[0053] If the ratio of calorie intake to calorie consumption is 100%, then one week after the specified time, the basal metabolic rate will be almost restored to the value at the start of weight loss, at which point the ratio of dietary calories will be less than 100% and the weight loss phase will begin again. This allows the user to lose weight with less of a burden on the user, without restricting the amount of food too much, while encouraging the recovery of the user's basal metabolic rate.

[0054] On the other hand, if the basal metabolic rate at the specified time has not decreased by more than the specified percentage from the basal metabolic rate at the start of weight loss, the following process is carried out.

[0055] FIG. 4 shows an example of the relationship between a user's target weight loss rate and the time elapsed since the start of weight loss. This relationship is determined in advance through experiments. In this example, the target weight loss rate 12 weeks after the start of weight loss is 8%, and the target weight loss rate 24 weeks is 10%. The target weight loss rate 24 weeks is the final goal of weight loss.

[0056] The storage unit 28 prestores information indicating the relationship between the user's target weight loss rate and the time elapsed since the start of weight loss. The storage unit 28 may store a plurality of different relationships. The plurality of relationships may include, for example, a relationship in which the target weight loss rate 12 weeks after the start of weight loss is 4% and the target weight loss rate 24 weeks is 5%. In this case, one relationship from the plurality of relationships is selected in advance by the user or the like according to the user's weight loss goal.

[0057] The derivation unit 34 derives the weight loss rate at a specific time based on the user's weight at the start of weight loss and at the specific time.

[0058] If the basal metabolic rate for a specified period has not decreased by more than a specified percentage from the basal metabolic rate at the start of weight loss, the derivation unit 34 determines the ratio of calories ingested to calories burned based on the result of comparing the user's target weight loss rate corresponding to the specified period stored in the memory unit 28 with the derived weight loss rate of the user for the specified period.

[0059] If the basal metabolic rate at a specific time has not decreased by a specific percentage or more from the basal metabolic rate at the start of weight loss, if the weight loss rate at the specific time is equal to or greater than the target weight loss rate corresponding to the specific time, and if the previously determined ratio of calorie intake is smaller than 100%, the derivation unit 34 determines the ratio of calorie intake to calories burned to be greater than the previously determined ratio, with 100% as the maximum value. In this case, the derivation unit 34 may determine the current ratio of calorie intake to be, for example, 10% greater than the previously determined ratio of calorie intake. This can reduce the burden on the user due to the restriction of the amount of food. In addition, the decrease in basal metabolic rate can be suppressed or restored.

[0060] If the basal metabolic rate at a certain time has not decreased by a certain percentage or more from the basal metabolic rate at the start of weight loss, if the weight loss rate at the certain time is smaller than the target weight loss rate corresponding to the certain time, and if the previously determined rate is larger than a first threshold value, the derivation unit 34 determines the ratio of calorie intake to calories burned to be smaller than the previously determined rate, with the first threshold value as the minimum value. In this case, the derivation unit 34 may determine the current calorie intake rate to be, for example, 10% smaller than the previously determined calorie intake rate. This makes it easier to bring the user's weight loss rate closer to the target weight loss rate. Because the first threshold value is the minimum value, it is possible to prevent the basal metabolic rate from decreasing too much.

[0061] If the basal metabolic rate at a certain time has not decreased by a certain percentage or more from the basal metabolic rate at the start of weight loss, and if the weight loss rate at the certain time is equal to the target weight loss rate corresponding to the certain time, the derivation unit 34 may maintain the ratio of calorie intake to calories burned at the previously determined ratio. This allows the user to continue weight loss at a calorie intake ratio suited to the user.

[0062] The derivation unit 34 derives the calorie intake so as to satisfy the determined ratio, and outputs the derived calorie intake to the presentation unit 36. The presentation unit 36 ​​presents the calorie intake output from the derivation unit 34 to the user via the display unit 22. As described above, the user continues to lose weight by switching to a diet with the presented calorie intake.

[0063] Next, an overall operation of the information processing device 20 configured as above will be described. Fig. 5 is a flowchart showing a process at the start of weight loss of the information processing device 20 in Fig. 1. The process in Fig. 5 is executed when the user inputs an instruction to start weight loss to the input unit 24.

[0064] The acquisition unit 32 acquires the basal metabolic rate measured by the measurement device 10 (S10), and acquires the energy expenditure due to physical activity input by the user (S12). The derivation unit 34 derives the calories burned based on the basal metabolic rate, the energy expenditure due to physical activity, and diet-induced thermogenesis (S14), determines the ratio of the calories ingested to the derived calories burned to be equal to or greater than a first threshold, and derives the calories ingested so as to satisfy the determined ratio (S16). The presentation unit 36 ​​presents the derived calories ingested to the user (S18), and the process ends.

[0065] Fig. 6 is a flow chart showing the process during the weight loss period of the information processing device 20 in Fig. 1. The process in Fig. 6 is periodically and repeatedly executed after the process in Fig. 5 while the user is on a weight loss schedule.

[0066] If it is not the predetermined time (N in S30), the process ends. If it is the predetermined time (Y in S30), the acquisition unit 32 acquires the basal metabolic rate measured by the measurement device 10 (S32), and acquires the user's weight (S34). If the acquired basal metabolic rate is reduced by 10% or more from the basal metabolic rate at the start of weight loss acquired in S10 of FIG. 5 (Y in S36), the derivation unit 34 determines the ratio of calorie intake to a value in the range of 80 to 100% (S38), derives calories burned based on the basal metabolic rate, energy consumption by physical activity, and diet-induced thermogenesis (S50), and derives calorie intake so as to satisfy the determined ratio (S52). The presentation unit 36 ​​presents the derived calorie intake to the user (S54), and the process ends.

[0067] If in S36 the basal metabolic rate has not decreased by 10% or more from the basal metabolic rate at the start of weight loss (N in S36), the derivation unit 34 derives the weight loss rate (S40), and the acquisition unit 32 acquires the target weight loss rate from the storage unit 28 (S42). If the weight loss rate is lower than the target weight loss rate (Y in S44), the derivation unit 34 sets the minimum value as the first threshold value (70%) and determines the rate of calorie intake to be lower than the previous rate (S46), and proceeds to S50. If the weight loss rate is equal to or higher than the target weight loss rate (N in S44), the derivation unit 34 sets the maximum value as 100% and determines the rate of calorie intake to be higher than the previous rate (S48), and proceeds to S50.

[0068] According to the present embodiment, it is possible to derive a calorie intake that facilitates weight loss according to the measured basal metabolic rate of the user. By measuring the basal metabolic rate by indirect calorimetry, the change in the basal metabolic rate associated with weight loss can be accurately reflected in the calorie intake.

[0069] In addition, even if the basal metabolic rate has decreased due to weight loss, the calorie intake can be set to match the calorie consumption, so the basal metabolic rate can be restored. Generally, a decrease in the basal metabolic rate makes it difficult to lose weight and is one of the causes of rebound, but if the basal metabolic rate can be restored in this way, it becomes possible to maintain a reduced weight state for a long period of time. In addition, instead of continuing to follow strict dietary restrictions aimlessly, the optimal calorie intake is set each time based on the ideal speed of weight loss according to the target weight, so the mental and physical burden on the user during weight loss can be reduced.

[0070] The present disclosure has been described above based on the embodiments. It will be understood by those skilled in the art that the present disclosure is not limited to the above embodiments, that various design changes are possible, that various modifications are possible, and that such modifications are also within the scope of the present disclosure.

[0071] For example, in the embodiment, the presentation unit 36 ​​presents various information to the user via the display unit 22, but in addition to this, or instead of this, various information may be presented to the user by voice via an audio output unit (not shown).

[0072] An overview of one aspect of the present disclosure is as follows: An information processing device of an aspect of the present disclosure includes an acquisition unit that acquires a basal metabolic rate of a user per unit period measured by a measurement device, and a derivation unit that derives a calorie intake per unit period recommended to the user based on the acquired basal metabolic rate.

[0073] According to this embodiment, it is possible to derive an intake calorie amount that facilitates weight loss according to the measured basal metabolic rate of the user.

[0074] The derivation unit may derive the calorie consumption per unit period of the user based on the acquired basal metabolic rate, determine a ratio of the calorie intake to the derived calorie consumption to be equal to or greater than a first threshold, and derive the calorie intake so as to satisfy the determined ratio. In this case, it is possible to derive the calorie intake that facilitates weight loss.

[0075] The acquisition unit may acquire the basal metabolic rate of the user at the start of weight loss and at a predetermined time during the weight loss, the derivation unit may derive the calories burned, determine the ratio of calories ingested, and derive the calories ingested, at each of the start of weight loss and the predetermined time, and the derivation unit may determine the ratio of calories ingested to calories burned to a second threshold value greater than the first threshold value when the basal metabolic rate at the predetermined time has decreased by a predetermined percentage or more from the basal metabolic rate at the start of weight loss. In this case, even if the basal metabolic rate decreases too much due to weight loss, the user's basal metabolic rate can be restored by increasing the ratio of calories ingested to calories burned. This reduces the burden on the user and makes it easier to lose weight.

[0076] The device may further include a storage unit storing information indicating a relationship between the user's target weight loss rate and the elapsed time from the start of the weight loss, the acquisition unit acquiring the user's weight at the start of the weight loss and at the specified time, and the derivation unit may determine a ratio of calories ingested to calories expended in accordance with a comparison result between the user's target weight loss rate corresponding to the specified time stored in the storage unit and the user's weight loss rate for the specified time derived from the acquired weight if the basal metabolic rate at the specified time has not decreased by more than the specified percentage from the basal metabolic rate at the start of the weight loss. In this case, a calorie intake appropriate for the user can be derived in accordance with a comparison result between the user's weight loss rate and the target weight loss rate for the specified time during the weight loss.

[0077] If the basal metabolic rate at the specified time has not decreased by the specified percentage or more from the basal metabolic rate at the start of the weight loss, if the weight loss rate at the specified time is greater than the target weight loss rate corresponding to the specified time, and if the previously determined percentage is less than 100%, the derivation unit may determine the ratio of calorie intake to calorie consumption to be greater than the previously determined percentage, with 100% as the maximum value. In this case, by increasing the ratio of calorie intake to calorie consumption, the burden on the user due to the restriction of the amount of food consumed can be reduced.

[0078] If the basal metabolic rate at the predetermined time has not decreased by the predetermined percentage or more from the basal metabolic rate at the start of the weight loss, if the weight loss rate at the predetermined time is smaller than the target weight loss rate corresponding to the predetermined time and the previously determined rate is larger than the first threshold value, the derivation unit may set the ratio of calorie intake to calorie consumption to be smaller than the previously determined rate with the first threshold value as a minimum value. In this case, by reducing the ratio of calorie intake to calorie consumption, the weight loss rate can be made to approach the target weight loss rate more easily.

[0079] The first threshold value may be 70%, which is likely to increase the probability of successful weight loss.

[0080] The first threshold may be 70% and the second threshold may be 80%, which is likely to increase the probability of successful weight loss.

[0081] The acquiring unit may acquire the basal metabolic rate measured by the measuring device by indirect calorimetry. In this case, a change in the basal metabolic rate due to weight loss can be accurately reflected in the calorie intake.

[0082] Another aspect of the present disclosure is an information processing system including a measuring device that measures a basal metabolic rate of a user per unit period, and an information processing device, the information processing device having an acquisition unit that acquires the basal metabolic rate measured by the measuring device, and a derivation unit that derives a calorie intake per unit period recommended to the user based on the acquired basal metabolic rate.

[0083] Another aspect of the present disclosure is a program that causes a computer to execute a step of acquiring a basal metabolic rate of a user per unit period measured by a measurement device, and a step of deriving a calorie intake per unit period recommended to the user based on the acquired basal metabolic rate. [Explanation of symbols]

[0084] 1...information processing system, 10...measuring device, 20...information processing device, 22...display unit, 24...input unit, 26...processing unit, 28...storage unit, 30...receiving unit, 32...acquiring unit, 34...deriving unit, 36...presenting unit.

Claims

1. An acquisition unit that acquires a basal metabolic rate per unit period of the user measured by a measurement device; a derivation unit that derives a calorie intake per unit period recommended to the user based on the acquired basal metabolic rate; Equipped with the derivation unit derives a calorie consumption per unit period of the user based on the acquired basal metabolic rate, determines a ratio of calorie intake to the derived calorie consumption to be equal to or greater than a first threshold value, and derives the calorie intake so as to satisfy the determined ratio; The acquisition unit acquires the basal metabolic rate of the user at the start of weight loss and at a predetermined time during the weight loss, The derivation unit derives a calorie consumption rate at the weight loss start time and at the predetermined time period, determines a calorie intake rate, and derives a calorie intake rate; When the basal metabolic rate at the predetermined time period is reduced by a predetermined percentage or more from the basal metabolic rate at the start of the weight loss, the derivation unit determines the ratio of calorie intake to calorie consumption to be equal to or greater than a second threshold value that is greater than the first threshold value.

23. An information processing apparatus comprising:

2. A storage unit that stores information indicating a relationship between a target weight loss rate of the user and an elapsed time from a start time of the weight loss, The acquisition unit acquires the weight of the user at the start of the weight loss and at the predetermined time period, when the basal metabolic rate for the specified time period has not decreased by more than the specified percentage from the basal metabolic rate at the start of the weight loss, the derivation unit determines a ratio of calories ingested to calories expended in accordance with a comparison result between a target weight loss rate for the user corresponding to the specified time period stored in the storage unit and a weight loss rate for the user for the specified time period derived from the acquired weight; 2. The information processing apparatus according to claim 1,

3. the derivation unit determines the ratio of calories ingested to calories expended to be greater than the previously determined ratio, with 100% as the maximum value, if the basal metabolic rate at the specified time period has not decreased by more than the specified ratio from the basal metabolic rate at the start of the weight loss, if the weight loss rate at the specified time period is greater than the target weight loss rate corresponding to the specified time period, and if the previously determined ratio is smaller than 100%, 3. The information processing apparatus according to claim 2.

4. the derivation unit determines a ratio of calorie intake to calorie expenditure to be smaller than the previously determined ratio, with the first threshold as a minimum value, if the basal metabolic rate at the specified time point has not decreased by more than the specified ratio from the basal metabolic rate at the start of the weight loss, if the weight loss rate at the specified time point is smaller than the target weight loss rate corresponding to the specified time point, and if the previously determined ratio is larger than the first threshold value; 4. The information processing apparatus according to claim 2, wherein the information processing apparatus is a computer.

5. The first threshold is 70%.

5. The information processing apparatus according to claim 1,

6. the first threshold is 70%; The second threshold is 80%.

5. The information processing apparatus according to claim 1,

7. The acquisition unit acquires the basal metabolic rate measured by the measurement device using indirect calorimetry.

7. The information processing apparatus according to claim 1,

8. A measuring device for measuring a user's basal metabolic rate per unit period; An information processing device; Equipped with The information processing device includes: An acquisition unit that acquires a basal metabolic rate measured by the measurement device; a derivation unit that derives a calorie intake per unit period recommended to the user based on the acquired basal metabolic rate; having the derivation unit derives a calorie consumption per unit period of the user based on the acquired basal metabolic rate, determines a ratio of calorie intake to the derived calorie consumption to be equal to or greater than a first threshold value, and derives the calorie intake so as to satisfy the determined ratio; The acquisition unit acquires the basal metabolic rate of the user at the start of weight loss and at a predetermined time during the weight loss, The derivation unit derives a calorie consumption rate at the weight loss start time and at the predetermined time period, determines a calorie intake rate, and derives a calorie intake rate; When the basal metabolic rate at the predetermined time period is reduced by a predetermined percentage or more from the basal metabolic rate at the start of the weight loss, the derivation unit determines the ratio of calorie intake to calorie consumption to be equal to or greater than a second threshold value that is greater than the first threshold value. An information processing system comprising:

9. An acquisition step of acquiring a basal metabolic rate per unit period of the user measured by a measurement device; A derivation step of deriving a calorie intake per unit period recommended to the user based on the acquired basal metabolic rate; Run the following on your computer: In the derivation step, a calorie consumption per unit period of the user is derived based on the acquired basal metabolic rate, a ratio of an intake calorie to the derived calorie consumption is determined to be equal to or greater than a first threshold value, and the intake calorie is derived so as to satisfy the determined ratio; In the acquiring step, a basal metabolic rate of the user is acquired at the start of weight loss and at a predetermined time during the weight loss, In the derivation step, a calorie consumption rate is derived at the weight loss start time and at the predetermined time period, a calorie intake rate is determined, and a calorie intake rate is derived; In the derivation step, when the basal metabolic rate at the predetermined time point is decreased by a predetermined ratio or more from the basal metabolic rate at the start of the weight loss, the ratio of the calorie intake to the calorie consumption is determined to be equal to or greater than a second threshold value that is greater than the first threshold value. A program characterized by:

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