JP2011045480A - Health measuring instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a health measuring instrument capable of determining surely the risk of bone fracture. <P>SOLUTION: The risk of falling of a user is calculated based on a muscular amount level as a body composition component and a parameter as a gravity center trembling characteristic, in a falling risk determining part 30d provided with a body composition component measuring part 30c for calculating the body composition component of a user, and a gravity center trembling measuring part 30b for measuring the gravity center trembling characteristic of a body, by a load sensor 20 provided in a stepstool loaded with a foot of the user. A bone information measuring part is provided also to measure a bone characteristic of the user, and a control part 30 is provided as a fracture risk determining part to determine the risk of fracture of the user, based on the risk of falling calculated by the falling risk determining part and the bone characteristic calculated by the bone information measuring part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a health measuring device for determining a fracture risk of a user.

  In recent years, due to lack of exercise and biased nutritional balance, bone density has decreased and the number of people who have broken bones has increased due to bones becoming brittle, and various health measurement devices that measure bone health are available. It has been developed (see, for example, Patent Document 1).

  In the health measurement device of Patent Document 1, a light irradiation unit that irradiates light into the measurement target by changing the intensity of light, and reflected light reflected from the measurement target within the irradiated light is received. A light receiving unit, a change trend calculating means for calculating the change tendency of the intensity of the reflected light received corresponding to the intensity of the irradiated light, and a calculation unit for calculating the density (bone density) of the measurement object based on the change tendency What is comprised is disclosed. That is, the health measuring apparatus changes the intensity of light emitted from the light irradiation unit as appropriate, and evaluates and measures the bone density from the change in the intensity of reflected light.

JP 2008-155011 A

  By the way, the above-described health measuring device measures the bone density of the user and displays the result. However, it is difficult to inform the user of how likely the fracture of the user is, that is, the risk of the fracture (fracture risk) by evaluating and measuring the bone density alone. It is rare.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a health measuring device that can more reliably determine a fracture risk.

  In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that a body composition measuring unit for calculating a body composition component of a user and a load sensor provided on a step platform on which the user's foot is placed. A fall risk determination unit that calculates a fall risk based on the body composition component and the center of gravity shake characteristic, and bone information that measures the bone characteristics of the user The gist of the present invention is to include a fracture risk determination unit that includes a measurement unit and determines a fracture risk of the user based on the fall risk and the bone characteristics.

  The present invention includes a body composition measurement unit that calculates a body composition component of the user and a center of gravity oscillation measurement unit that measures the center of gravity oscillation characteristic of the body using a load sensor provided on a step on which the user's foot is placed. The fall risk determination unit calculates the fall risk of the user based on the body composition component and the center of gravity fluctuation characteristic. In addition, a bone information measurement unit for measuring the bone characteristics of the user is provided, and the fracture risk of the user is calculated based on the fall risk calculated by the fall risk determination unit and the bone characteristics calculated by the bone information measurement unit. A fracture risk determination unit for determining whether or not Here, “body composition component” refers to the fat mass and muscle mass of the user, and “bone characteristics” refers to any one of bone mass, bone density, and bone strength. The same meaning is used. Thus, in addition to the bone characteristics of the user, the fall risk indicating the user's ease of falling (balance ability) is calculated based on the body composition component and the center-of-gravity fluctuation characteristic, and the fracture is calculated based on the bone characteristics and the fall risk. By determining the risk, the fracture risk can be determined more reliably.

  According to a second aspect of the present invention, in the health measurement device according to the first aspect, the bone information measuring unit includes a light irradiation unit that irradiates light on the biological surface of the user, and a biological surface formed by the light irradiation unit. And a light receiving unit that receives light propagated through the inside of the living body including the bone, and calculating the bone density of the bone characteristics based on the amount of light acquired by the light receiving unit; To do.

  In the present invention, the bone information measurement unit includes a light irradiation unit that irradiates light on the surface of the user's living body, and a light reception unit that receives the light that has been irradiated on the surface of the living body by the light irradiation unit and propagated through the living body including bone. Part. The bone information measuring unit calculates the bone density in the bone characteristics based on the light amount acquired by the light receiving unit. Thus, even if it is a structure provided with a light irradiation part and a light-receiving part and calculating the bone density in a bone characteristic in a bone information measurement part, there can exist an effect similar to the effect of the said Claim 1. FIG. In addition, bone characteristics (bone density) can be calculated with a simple configuration that does not use X-rays or the like.

  According to a third aspect of the present invention, in the health measuring device according to the second aspect, a concave portion that protrudes downward is formed on an upper surface of the footrest on which the foot portion is placed, and the light irradiation portion and the light receiving portion. The gist of the present invention is that they are provided in the recess so as to shield them from external light.

  In the present invention, a concave portion that protrudes downward is formed on the upper surface of the footrest on which the foot portion is placed, and the light emitting portion and the light receiving portion are provided in the concave portion to shield them from external light. In other words, by shielding the light irradiating unit and the light receiving unit from external light, it is possible to suppress the addition of other light, that is, noise to the light necessary for bone density measurement, and more reliably and accurately. Bone density can be measured. In addition, since the depression is formed, the measurement site (the back side of the foot) can be easily positioned.

  According to a fourth aspect of the present invention, in the health measuring apparatus according to the second aspect, a central wall portion extending in a direction perpendicular to the width direction from the upper surface of the step is provided at the center in the width direction of the step. The gist of the present invention is that the light irradiating unit and the light receiving unit are provided on at least one of both side surfaces in the width direction of the central wall in order to calculate the bone density inside the user's foot.

  In this invention, a central wall portion extending in a direction perpendicular to the width direction from the upper surface of the platform is provided at the center in the width direction of the platform, and the light irradiation unit and the light receiving unit are bone density inside the user's foot. Is provided on at least one of both side surfaces in the width direction of the central wall portion. In this way, the bone density inside the foot is calculated, so that the measurement of bone density is improved because, for example, the fat under the skin (subcutaneous tissue) is thinner than the back of the foot. It becomes possible to make it.

  According to a fifth aspect of the present invention, in the health measuring device according to the second aspect, a side wall portion extending in a direction perpendicular to the width direction from the upper surface of the step is provided on the outer side in the width direction of the step. The gist of the present invention is that the light irradiating unit and the light receiving unit are provided on the side surface of the side wall portion on the center side in the width direction of the platform so as to calculate the bone density outside the foot of the user.

  In this invention, a side wall portion extending in a direction perpendicular to the width direction is provided from the top surface of the platform in the width direction outside of the platform, and the light irradiation unit and the light receiving unit have a bone density outside the user's foot. In order to calculate, it is provided in the side wall part side surface of the width direction center side of a step. In this way, the bone density on the outside of the foot is calculated so that, for example, subcutaneous fat (subcutaneous tissue) can be measured outside the foot, which is thinner than the back of the foot, improving bone density measurement accuracy. It becomes possible to make it.

  According to a sixth aspect of the present invention, in the health measurement device according to the second aspect, the health measuring device has a grip portion that can be gripped by both hands of the user, and the light irradiation portion and the light receiving portion are the fingers of the user. In order to calculate the bone density, the gist is provided in the grip portion.

  In this invention, the grip part which can be gripped with both hands of the user is provided, and the light irradiation part and the light receiving part are provided in the grip part in order to calculate the bone density of the user's fingers. Thus, even if it is the structure which calculates the bone density of a user's finger | toe, there can exist an effect similar to the effect of Claim 1 and Claim 2.

  According to a seventh aspect of the present invention, in the health measurement device according to the sixth aspect, the gripping portion includes an insertion portion into which the user's finger can be inserted, and the light irradiation unit and the light receiving unit are The gist is that it is provided in the insertion portion.

  In this invention, the holding part is provided with an insertion part into which a user's finger can be inserted, and the light irradiation part and the light receiving part are provided in the insertion part. In this way, it is necessary to measure bone density by providing an insertion part into which fingers can be inserted and providing a light irradiation part and a light receiving part inside it, thereby shielding the light irradiation part and the light receiving part from external light. Therefore, it is possible to suppress the addition of other light, that is, noise, to the light that becomes, and the bone density can be measured more reliably and accurately.

The gist of an eighth aspect of the present invention is the health measurement apparatus according to the first aspect, wherein the bone information measuring unit calculates the bone characteristics based on bioelectrical impedance.
In the present invention, the bone information measuring unit calculates the bone characteristics based on the bioelectric impedance. Even if it is such a structure, the effect similar to the effect of Claim 1 can be show | played.

  ADVANTAGE OF THE INVENTION According to this invention, the health measuring apparatus which can determine a fracture risk more reliably can be provided.

The schematic block diagram of the health measuring apparatus in this embodiment. Explanatory drawing for demonstrating schematic structure of the health measuring apparatus same as the above. Explanatory drawing for demonstrating schematic structure of the health measuring apparatus same as the above. The block diagram for demonstrating the electrical structure in the same as the above. The enlarged view of the operation part in the same as the above. Explanatory drawing for demonstrating the rectangular area showing the locus | trajectory of a gravity center position, and the maximum movement range of a gravity center position. Explanatory drawing for demonstrating the fall risk determination area | region. Explanatory drawing for demonstrating the determination area | region of a fracture risk. Explanatory drawing for demonstrating schematic structure of the health measuring apparatus in another example. Explanatory drawing for demonstrating schematic structure of the health measuring apparatus in another example. Explanatory drawing for demonstrating schematic structure of the health measuring apparatus in another example. Explanatory drawing for demonstrating schematic structure of the health measuring apparatus in another example. Explanatory drawing for demonstrating schematic structure of the health measuring apparatus in another example. Explanatory drawing for demonstrating schematic structure of the health measuring apparatus in another example. Explanatory drawing for demonstrating the operation part of the health measuring apparatus in another example. Explanatory drawing for demonstrating the operation part of the health measuring apparatus in another example. Explanatory drawing for demonstrating the structure of the bone of the finger of the hand in another example. Explanatory drawing for demonstrating schematic structure of the health measuring apparatus in another example. (A) (b) is explanatory drawing for demonstrating the holding part of the health measuring apparatus in another example. (A) (b) is explanatory drawing for demonstrating the holding part of the health measuring apparatus in another example. Explanatory drawing for demonstrating the operation part of the health measuring apparatus in another example. Explanatory drawing for demonstrating the operation part of the health measuring apparatus in another example. Explanatory drawing for demonstrating the operation part of the health measuring apparatus in another example. Explanatory drawing for demonstrating the operation part of the health measuring apparatus in another example. Explanatory drawing for demonstrating the operation part of the health measuring apparatus in another example. Explanatory drawing for demonstrating the operation part of the health measuring apparatus in another example.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration of a health measuring device. The step 11 of the health measuring device 10 of this embodiment is formed in a flat rectangular parallelepiped shape so that the user can place both feet.

  Foot electrodes 12 a to 12 d and a bone information measuring unit 13 are provided on the upper surface 11 a of the step 11. Of the foot electrodes 12a to 12d, the foot electrodes 12a and 12b and the bone information measuring unit 13 are formed of two hollow portions 14 (see FIG. 2) formed on the rear surface (lower side in FIG. 1) of the upper surface 11a of the step board 11. Reference). Further, the depression 14 is assumed so that the user's heel K is located as shown in FIG. 3 when the apparatus 10 is used. The leg electrodes 12c and 12d formed so as to have a long and substantially rectangular shape are arranged.

  Predetermined exposure holes are formed in the foot electrodes 12a and 12b, and the light emitting element 13a and the light receiving element 13b constituting the bone information measuring unit 13 are arranged in a state in which a part is exposed from the exposure hole. . The distance between the light emitting element 13a and the light receiving element 13b is about 10 mm, and the diameter of each element 13a, 13b is about 3 mm. As shown in FIG. The reflected light propagating through the inside of the living body including the light is received by the light receiving element 13b. Further, the light emitting element 13a is constituted by an LED having a central wavelength of 800 nm to 850 nm, for example, and the light receiving element 13b is constituted by a photodiode. Note that the wavelength of the light output from the light emitting element 13a may be changed as long as it is in the near infrared region of, for example, 750 nm to 2500 nm, and the permeability to a living body such as a subcutaneous tissue or bone is good.

  Moreover, as shown in FIG. 1, the operation part 15 is attached to the front part of the step stand 11 so that attachment or detachment is possible. The operation unit 15 is formed in a flat rectangular parallelepiped shape, and as shown in FIG. 5, four hand electrodes 16 a to 16 d are provided in total, two on each side in the width direction (left and right direction). In the center, an input unit 17 composed of operation switches and the like, and a display unit 18 configured with a liquid crystal panel and displaying various information are provided. A power switch 19 for turning on / off the health measuring device 10 is provided on the rear (lower side in FIG. 1) side surface of the step 11. Further, load sensors 20 as load detecting means are built in the four corners of the step 11. As shown in FIG. 2, the load sensor 20 is supported by the support plate 21, and when a load such as a weight is applied to the step board 11, the load is transmitted to the load sensor 20 via the upper plate 22 and the rib 23. It has become so.

  The health measuring device 10 includes, for example, a control unit 30 shown in FIG. As shown in FIG. 4, the control unit 30 includes a load detection unit 31 that detects a voltage value of the load sensor 20, an impedance measurement unit 32, and a light emitting element 13 a and a light receiving element 13 b that constitute the bone information measurement unit 13. The input unit 17, the display unit 18, and the storage unit 33 that stores various types of information are electrically connected.

  In the load detection unit 31, a voltage value output in accordance with a load such as the weight of the user is detected by the load sensor 20. The voltage value is A / D converted at a predetermined sampling frequency by an A / D conversion unit (not shown), and then the converted value is output to the weight measurement unit 30a of the control unit 30. The weight value of the user is calculated by the unit 30a, and the calculated weight value is displayed on the display unit 18. Further, in the control unit 30, the value after the above-described AD conversion is stored in the storage unit 33, and is used when measuring the sway of the user's center of gravity. The center-of-gravity fluctuation measuring unit 30b of the control unit 30 reads the value after A / D conversion stored in the storage unit 33, and uses the distance between the value and each load sensor 20 to determine the user's center-of-gravity position coordinates. The locus L of the center of gravity position coordinates as shown in FIG. 6 is calculated. Using the data of the locus L of the center of gravity position coordinates, the center of gravity such as a rectangular area 40 representing the maximum movement range of the center of gravity position within a predetermined time as shown in FIG. The shaking parameter X is calculated. The center-of-gravity sway parameter X is a dimensionless index that increases as the rectangular area 40 becomes smaller, for example, and holds the posture in which the operation unit 15 is grasped by hand and raised to the height of the shoulder for a predetermined time (for example, 10 seconds). The center-of-gravity sway is measured in this state.

  The impedance measuring unit 32 includes a foot electrode 12c, 12d that is an electrode for current application, a current supply unit 35 that supplies an alternating current to the hand electrodes 16c, 16d, and a foot electrode 12a that is an electrode for voltage measurement. , 12b and the hand electrodes 16a, 16b are connected to a voltage detector 36 for detecting a voltage between the electrodes. Here, for example, when it is desired to apply a current from the left fingertip to the left foot toe, the control unit 30 controls the current supply unit 35 to conduct from the hand electrode 16c to the foot electrode 12c, for example, a current having a frequency of 50 KHz and 800 μA. Apply. For example, when detecting the voltage between the left palm and the left footpad, the control unit 30 detects the voltage between the hand electrode 16 a and the foot electrode 12 a by the voltage detection unit 36. The impedance measuring unit 32 calculates the impedance from the current and voltage and outputs the impedance to the body composition measuring unit 30c of the control unit 30. The control unit 30 measures body composition components such as fat mass and muscle mass from the impedance. .

  When the center-of-gravity sway parameter X and the body composition component (especially muscle mass) are calculated as described above, the fall risk determination unit 30d of the control unit 30 determines the user's fall risk. Here, when calculating the center-of-gravity sway parameter X, measurement is performed in a state where the same posture is maintained for a predetermined time, that is, in a stationary position, and therefore, muscles are hardly used. Thereby, since the fall risk representing the ease of falling cannot be accurately determined only by the center-of-gravity fluctuation parameter X, the fall risk can be determined more accurately by calculating the muscle mass level Y.

  In this embodiment, as shown in FIG. 7, the fall risk is divided into four stages by dividing the center-of-gravity sway parameter X into two at a predetermined threshold and dividing the muscle mass level Y, which is a body composition component, into two at a predetermined threshold. It is configured to perform level judgment. Specifically, in the region Z1 where both the center-of-gravity sway parameter X and the muscle mass level Y are higher than a predetermined threshold, it is determined that the walking ability is stable and the fall risk is the lowest “fall risk 1” and the controller 30 falls. It is determined by the risk determination unit 30d. Further, in the region Z2 where the center-of-gravity sway parameter X is higher than the threshold and the muscle mass level Y is lower than the threshold, it is determined that the walking ability is slightly unstable, and “falling risk 2” and the falling risk determining unit 30d of the control unit 30 are determined. Is determined. Further, in the region Z3 in which the center-of-gravity sway parameter X is lower than the threshold and the muscle mass level Y is higher than the threshold, the walking ability is determined to be slightly unstable, and the “falling risk 3” and the falling risk determining unit 30d of the control unit 30 are determined. Is determined. Furthermore, in the region Z4 where the center-of-gravity sway parameter X and the muscle mass level Y are both lower than the threshold value, the walking ability is determined to be unstable, and “falling risk 4” having the highest falling risk is determined. It is determined at 30d.

  As shown in FIG. 4, the operation of the light emitting element 13 a and the light receiving element 13 b connected to the control unit 30 is controlled by the control unit 30. In this embodiment, the control part 30 drives the light emitting element 13a, and irradiates light with respect to the eaves K. FIG. At substantially the same time, the controller 30 drives the light receiving element 13b, and the light receiving element 13b transmits the light that is irradiated to the eyelid K and propagated while being diffusely reflected inside the living body such as the subcutaneous tissue K1 and the rib K2 of the eyelid K. It is designed to receive light. And the bone density measurement part 30e of the control part 30 calculates the bone density of the radius K2 according to the light quantity obtained with the light receiving element 13b. In addition, since a weight, such as a user's weight, is applied by putting a foot | leg part on the platform 11, the state of a subcutaneous tissue or bone density can be stabilized. Furthermore, as shown in FIG. 2 and FIG. 3, there is an effect of blocking light from the outside by the recessed portion 14, so that highly accurate measurement can be performed.

  As described above, when the fall risk and the bone density are calculated by the control unit 30, the control unit 30 determines the fracture risk based on the fall risk and the bone density. In the present embodiment, as shown in FIG. 8, the fracture risk is configured so that four-step level determination can be performed by dividing the fall risk into two at a predetermined threshold and dividing the bone density into two at a predetermined threshold. . Specifically, in the region A1 where the bone density is higher than the threshold and the fall risk is lower than the threshold, the control unit 30 determines that “fracture risk 1” is the least likely to cause a fracture. Further, in the region A2 where the bone density is lower than the threshold and the fall risk is also lower than the threshold, the controller 30 determines that “fracture risk 2” because it is difficult to fall but is easy to fracture when it falls. Further, in the region A3 where the bone density is higher than the threshold and the fall risk is higher than the threshold, the control unit 30 determines that the bone fracture risk is 3 because the fracture is difficult but the fall is easy. Furthermore, in the region A4 where the bone density is lower than the threshold and the fall risk is lower than the threshold, the control unit 30 determines that “fracture risk 4” is the easiest to fracture. For example, the result G regarding the fracture risk calculated by the control unit 30 based on the fall risk and the bone density is displayed on the display unit 18 as shown in FIG. In the present embodiment, in the case of the result G, the bone density is higher than the threshold value and good, but the fall risk is higher than the threshold value, so it is determined as “fracture risk 3”.

  As described above, in the health measurement device 10 of the present embodiment, in addition to the measurement of the bone density that is the bone characteristic of the user, the user's ease of rolling (balance ability) based on the body composition component and the center of gravity fluctuation characteristic. The fracture risk can be determined more reliably by calculating the risk of falling and calculating the risk of fracture based on the bone characteristics (bone density) and the risk of falling. Also, it can be notified whether the fracture risk is due to bone density or the fall risk.

Next, characteristic effects of the present embodiment will be described.
(1) A body composition measuring unit 30c that calculates a body composition component of the user and a center-of-gravity fluctuation measuring unit 30b that measures the body's center-of-gravity fluctuation characteristics by the load sensor 20 provided on the step 11 on which the user's foot is placed. In the fall risk determination unit 30d provided with the above, the fall risk of the user is calculated based on the muscle mass level Y as the body composition component and the parameter X as the center of gravity fluctuation characteristic. Further, a bone information measuring unit 13 for measuring the bone characteristics of the user is provided. Based on the fall risk calculated by the fall risk determining unit and the bone characteristics calculated by the bone information measuring unit 13, the fracture of the user The control part 30 as a fracture risk determination part which determines a risk is provided. In this way, in addition to the user's bone characteristics (bone density), the user's ease of rolling (balance ability) based on the muscle mass level Y, which is a body composition component, and the center of gravity swing parameter X, which is a center of gravity swing characteristic. The risk of falling is calculated. And by calculating | requiring a fracture risk based on a bone characteristic (bone density) and a fall risk, a fracture risk can be determined more reliably. Also, it can be notified whether the fracture risk is due to bone density or the fall risk.

  (2) The bone information measuring unit 13 has a light emitting element 13a as a light irradiating unit that irradiates light on the surface of the living body of the user, and is propagated through the living body including the bone by being irradiated on the living body surface by the light emitting element 13a. And a light receiving element 13b as a light receiving portion for receiving the received light. The bone information measuring unit 13 calculates the bone density in the bone characteristics based on the light amount acquired by the light receiving element 13b. As described above, the light emitting element 13a and the light receiving element 13b are provided, and the bone density in the bone characteristic is calculated by the bone information measuring unit 13 (control unit 30), that is, the bone characteristic is obtained by a simple configuration without using X-rays or the like. (Bone density) can be calculated.

  (3) A depression 14 that protrudes downward is formed on the upper surface on which the foot of the step 11 is placed, and the light emitting element 13a and the light receiving element 13b are provided in the depression 14 to shield them from external light. That is, by shielding the light emitting element 13a and the light receiving element 13b from external light, it is possible to suppress the addition of other light, that is, noise, to the light necessary for bone density measurement, and more reliably and accurately. In addition, bone density can be measured. In addition, since the recess 14 is formed, the measurement site (the back side of the foot) can be easily positioned.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, the light emitting element 13a and the light receiving element 13b constituting the bone information measuring unit 13 are provided in the hollow part 14, but the arrangement location of the light emitting element 13a and the light receiving element 13b is not limited thereto.

  For example, as shown in FIG. 9 and FIG. 10, a central wall 50 that can contact the inner side of the user's foot is provided at a substantially central position in the width direction on the rear side of the upper surface 11 a of the step 11. The left and right side surfaces 50a may be provided with a light emitting element 13a and a light receiving element 13b. In this configuration, the central wall portion 50 has a width in the width direction and a width in the front-rear direction of about 20 mm and a height of about 40 mm. The light-emitting element 13 a and the light-receiving element 13 b are located near the height of 20 mm from the upper surface 11 a. They are arranged in the front-rear direction. However, as shown in FIG. 11, the light emitting element 13a and the light receiving element 13b may be arranged in parallel in a direction (vertical direction) orthogonal to the surface direction of the upper surface 11a. Further, as shown in FIG. 12, the light emitting element 13a and the light receiving element 13b may be provided on the central wall 51 that is shifted forward, for example, as shown in FIG.

  Moreover, in the structure which provides the center wall parts 50 and 51 as mentioned above, although it does not mention in particular, as shown in FIG. 13, the side surface 52a is made convex along the inner side surface of a user (person). The formed center wall 52 may be provided. By setting it as such a structure, it becomes possible to calculate a bone density accurately.

  Further, for example, as shown in FIG. 14, side wall portions 60 that can come into contact with the outer surface of the foot portion of the user are provided on both sides in the width direction on the rear side of the upper surface 11 a of the step platform 11. 11 may be provided with the light emitting element 13a and the light receiving element 13b on the side surface 61 on the center side in the width direction.

As described above, by adopting a configuration in which bone density is measured from the inside and outside of the foot, subcutaneous tissue (subcutaneous fat) is suppressed from the back of the foot, and bone density can be accurately measured. .
Further, for example, a light emitting element 13a and a light receiving element 13b may be provided in the operation unit 15 as shown in FIG. As shown in FIGS. 15 and 16, finger guides 70 are provided on both sides of the operation unit 15 in the width direction. The finger guide 70 is formed in a rectangular shape that is long in the front-rear (up-and-down) direction of the operation unit 15. The finger guide 70 is provided with a light-emitting element 13 a and a light-receiving element 13 b in the front-rear direction that is the longitudinal direction. ing. Then, for example, as shown in FIG. 16, the user's thumb is brought into contact with the finger guide 70, and the back side of the operation unit 15 is held by the other fingers, so that the thumb as shown in FIG. The TH proximal phalange 75 or the inside of the hand near the first middle finger 76 comes into contact with the finger guide 70, and the bone density of the bones 75 and 76 of the thumb TH can be calculated.

  -In above-mentioned embodiment, although the operation part 15 was made into the substantially flat rectangular parallelepiped shape, it is not restricted to this. For example, as shown in FIG. 18, the operation unit 15 may be embedded in the step 11 and a grip 80 connected by a cord may be provided at the front of the step 11. Here, the grip portion 80 is formed in a cylindrical shape, and a thumb guide 81 and an index finger guide 82 as shown in FIG. 19A are provided on the outer surface thereof as shown in FIG. ing. The index finger guide 82 is provided with a light emitting element 13a and a light receiving element 13b. In such a configuration, when the grip 80 is gripped, the index finger guide 82 comes into contact with the inner side of the hand near the proximal phalange 83 or the first metacarpal bone 84 of the index finger FF as shown in FIG. The bone density of the bones 83 and 84 of the user's index finger FF can be calculated.

  In addition to the structure for calculating the bone density of the bones 83 and 84 of the index finger FF, as shown in FIGS. 20A and 20B, a middle finger guide 85, a ring finger guide 86, and a little finger guide 87 are provided. A light emitting element 13a and a light receiving element 13b may be provided in each finger guide 85, 86, 87, and the bone density of each finger may be measured. Moreover, you may employ | adopt the structure which measures the bone density of either finger | toe.

  In the above embodiment, although not specifically mentioned, as shown in FIG. 21, an insertion portion 90 capable of inserting a finger of a user's hand (for example, a finger other than the thumb) on both side surfaces 15 a in the width direction of the operation portion 15 is provided. It is good also as a structure which forms and provides the light emitting element 13a and the light receiving element 13b in the insertion part 90. FIG. In addition, as shown in FIG. 22, the light emitting element 13a and the light receiving element 13b can calculate the bone density of the user's index finger FF by setting the insertion unit 90 in a position corresponding to the index finger FF in advance.

  Further, as shown in FIG. 23, an insertion portion 91 into which a finger of a user's hand (for example, a finger other than the thumb) can be inserted is formed on the back surface 15b side of the operation portion 15, and the light emitting element 13a and the light receiving element are formed in the insertion portion 91. It is good also as a structure which provides 13b. Further, as shown in FIG. 24, the bone density of the user's index finger FF can be calculated by previously setting the light emitting element 13a and the light receiving element 13b in the insertion portion 90 at a position corresponding to the index finger FF.

  By adopting the above configuration, the bone density is calculated inside the insertion portions 90 and 91. Therefore, the light necessary for measuring the bone density is obtained by shielding the light emitting element 13a and the light receiving element 13b from external light. On the other hand, the addition of other light, that is, noise can be suppressed, and the bone density can be measured more reliably and accurately.

  25 and 26, the light emitting element 13a and the light receiving element 13b may be arranged on the side surface 15a in the width direction of the operation unit 15 so as to face the outside in the width direction. For example, as shown in FIG. 26, the bone density of the user's palm can be increased by grasping the thumb TH so that the front side of the operation unit 15 and the back side of the operation unit 15 are in contact with the side 15a. Can be calculated.

In the above embodiment, the bone characteristic (bone density) is measured by the light emitting element 13a and the light receiving element 13b. However, a structure in which the bone mass is estimated by bioelectric impedance may be adopted.
In the above embodiment, the rectangular area 40 is used as the center of gravity fluctuation parameter X. However, the total locus length of the locus L or a parameter obtained by dividing the total locus length by the rectangular area 40 may be used as the center of gravity fluctuation parameter X.

  In the above embodiment, the light receiving element 13b is configured by one photodiode, but may be configured by a plurality of elements (photodiodes). By adopting such a configuration, it is possible to suppress the deviation of the measurement value of the bone density caused by the error in the amount of received light generated in the plurality of elements. The light receiving element 13b is not limited to a photodiode but may be a phototransistor. In short, an element that can receive light emitted from the light emitting element 13a may be used.

  DESCRIPTION OF SYMBOLS 10 ... Health measuring device, 11 ... Step, 11a ... Upper surface, 13 ... Bone information measurement part, 13a ... Light emitting element (light irradiation part), 13b ... Light receiving element (light receiving part), 14 ... Depression part, 15a ... Side surface, 20 DESCRIPTION OF SYMBOLS ... Load sensor, 22 ... Light receiving part, 30 ... Control part (fracture risk judgment part), 30b ... Center of gravity fluctuation measurement part, 30c ... Body composition measurement part, 30d ... Fall risk judgment part, 50, 51, 52 ... Central wall part , 60 ... sidewall portion, 75, 76, 83, 84 ... bone, 80 ... gripping portion, 90, 91 ... insertion portion.

Claims (8)

A body composition measurement unit that calculates a body composition component of the user, and a center of gravity oscillation measurement unit that measures a center of gravity oscillation characteristic of a body by a load sensor provided on a step on which the user's foot is placed, and A fall risk determination unit that calculates a fall risk based on a body composition component and the center of gravity fluctuation characteristic;
A bone information measuring unit for measuring the bone characteristics of the user,
A health measurement apparatus comprising: a fracture risk determination unit that determines a fracture risk of the user based on the fall risk and the bone characteristics. The health measurement device according to claim 1,
The bone information measuring unit includes: a light irradiating unit that irradiates light on the surface of the user's living body; and a light receiving unit that receives light that has been irradiated on the living body surface by the light irradiating unit and propagated inside the living body including bone. And a health measuring device that calculates a bone density of the bone characteristics based on the amount of light acquired by the light receiving unit. The health measuring device according to claim 2,
A depression that protrudes downward is formed on the upper surface of the footrest on which the foot is placed,
The health measuring device, wherein the light irradiating unit and the light receiving unit are provided in the recess so as to shield them from external light. The health measuring device according to claim 2,
At the center in the width direction of the step, there is provided a central wall portion extending from the upper surface of the step in a direction perpendicular to the width direction,
The health measuring device, wherein the light irradiating unit and the light receiving unit are provided on at least one of both side surfaces in the width direction of the central wall in order to calculate a bone density inside the user's foot. The health measuring device according to claim 2,
On the outer side in the width direction of the step, a side wall portion extending from the upper surface of the step in a direction orthogonal to the width direction is provided,
The health measuring device, wherein the light irradiating unit and the light receiving unit are provided on a side surface of the side wall portion at the center side in the width direction of the platform so as to calculate a bone density outside the foot portion of the user. The health measuring device according to claim 2,
Having a gripper that can be gripped by both hands of the user;
The health measuring apparatus according to claim 1, wherein the light irradiation unit and the light receiving unit are provided in the grip unit to calculate a bone density of the user's finger. The health measurement device according to claim 6,
The grip portion includes an insertion portion into which the user's finger can be inserted;
The health measuring device, wherein the light irradiation part and the light receiving part are provided in the insertion part. The health measurement device according to claim 1,
The health information measuring apparatus, wherein the bone information measuring unit calculates the bone characteristics based on bioelectrical impedance.

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