JP2015112374A - Musculoskeletal disorder evaluation system, musculoskeletal disorder evaluation device, program and musculoskeletal disorder evaluation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a musculoskeletal disorder evaluation system in which a degree of improvement in the musculoskeletal disorder of a subject is evaluated and a degree of the musculoskeletal disorder is digitized to facilitate evaluation.SOLUTION: A first acquisition unit 311 acquires data showing the number of times of the operation of rising up and sitting down repeatedly performed by a subject being seated on a chair in a constant period of time. A second acquisition unit 312 acquires data showing the number of seconds in which the subject rises up from the chair, moves a pre-fixed distance and returns to the chair again to be seated. A calculation unit 313 calculates the sum of a value obtained by multiplying the number of times shown by the data acquired using the first acquisition unit 311 by a first coefficient, and a value obtained by multiplying the number of seconds shown by the data acquired using the second acquisition unit 312 by a second coefficient. A comparing unit 314 compares an evaluation value based on the calculated sum with a determined threshold value. An evaluation unit 315 evaluates that the subject 5 is in a musculoskeletal syndrome when the evaluation value is decided to be 0 or more by the comparing unit 314, and makes a display unit 34 display the results of the evaluation.

Description

  The present invention relates to diagnosis of musculoskeletal syndrome and evaluation of disorders occurring in musculoskeletal.

  Tissues and organs responsible for the movement of the human body such as bones, joints, muscles, ligaments, and nerves are called “motors”. The function of the musculoskelet is reduced by aging and may cause damage. The Japanese Orthopedic Association proposes “locomotive syndrome”, which means symptoms that cause a risk of becoming a need for nursing care due to a failure in the motor organs and the ability to move on their own. , Preventive enlightenment. As a method for diagnosing whether or not it has musculoskeletal syndrome, for example, Non-Patent Document 1 presents a locomotive degree test. The Locomo degree test is composed of three tests: a stand-up test that checks whether or not you can stand up from a fixed height, a two-step test that checks the step length for two steps, and a locomo 25 that answers 25 questions. If even one of these results does not reach the age-appropriate result, it is diagnosed that there is a high possibility of becoming a motor organ syndrome (Lokomo) in the future. Non-patent document 2 presents a diagnostic method called loco-check. The loco-check is an inquiry about seven items, and if any of these items is applicable, it is diagnosed as locomotive. On the other hand, Patent Document 1 describes a system that evaluates cognitive function according to the degree of physical function obtained through several different exercises.

JP 2011-115362 A

Locomo Challenge! Promotion Council, “Locomo Test”, [online], [October 16, 2013], Internet <URL: locomo-joa.jp/check/test/> Locomo Challenge! Promotion Council, “Locomo Check”, [online], [October 16, 2013], Internet <URL: locomo-joa.jp/check/lococheck/>

  However, in the diagnosis methods described in Non-Patent Document 1 and Non-Patent Document 2, it is possible to diagnose whether or not the person to be diagnosed is Locomo or whether or not the person to be diagnosed may become Locomo in the future. However, it is impossible to diagnose how much the symptom has improved when a subject who has developed musculoskeletal syndrome has been trained to improve the symptom. Moreover, the system described in Patent Document 1 cannot diagnose the degree of musculoskeletal syndrome.

  An object of the present invention is to evaluate the degree of improvement of the musculoskeletal disorder of the person being measured, and to make it easier to evaluate the degree of the musculoskeletal disorder numerically.

  In order to solve the above-described problem, the musculoskeletal disorder evaluation system according to the present invention includes a first measuring unit that measures the number of times that a person sitting in a chair repeatedly stands and sits down within a predetermined time, and A second measurement means for measuring the number of seconds until the person to be measured stands up from the chair, moves a certain distance and sits back on the chair, and a real number predetermined to the number of times measured by the first measurement means A sum of a value obtained by multiplying a certain first coefficient and a value obtained by multiplying the number of seconds measured by the second measuring means by a second coefficient which is a predetermined real number is calculated, and based on the sum, Evaluation means for evaluating the degree of musculoskeletal disorder of the measurer.

  Preferably, the first coefficient is a negative real number, the second coefficient is a positive real number, and the evaluation means adds an evaluation value by adding a constant that is a predetermined real number to the calculated sum. When the evaluation value is 0 or more, the measurement subject may be evaluated as having musculoskeletal syndrome.

Preferably, the evaluation means has the following formula:
Evaluation value = −0.306758046 × (the number of times) + 0.055207427 × (the number of seconds) +5.551184577
When the evaluation value is 0 or more, the measured person may be evaluated as having a musculoskeletal syndrome.

  Preferably, the evaluation means evaluates that the symptom of the subject's musculoskeletal syndrome is more severe as the evaluation value is larger when the calculated evaluation value is 0 or more, and the calculated evaluation value. When is less than 0, it is better to evaluate that the greater the evaluation value, the higher the risk that the measured person will have musculoskeletal syndrome.

  In the above-described aspect, it is preferable that the certain time is 30 seconds and the certain distance is 3 meters.

  The apparatus for evaluating musculoskeletal disorder according to the present invention includes first acquisition means for acquiring data indicating the number of times that a person sitting on a chair stands up and sits repeatedly within a certain time, and the person to be measured is a chair. The second acquisition means for acquiring data indicating the number of seconds from standing up to moving a certain distance and returning to the chair, and the number of times indicated by the data acquired by the first acquisition means is predetermined. Calculating a sum of a value obtained by multiplying the first coefficient which is a real number and a value obtained by multiplying the second number which is a predetermined real number by the number of seconds indicated by the data acquired by the second acquisition unit, Evaluation means for evaluating the degree of the musculoskeletal disorder of the subject based on the sum.

  The program according to the present invention includes a first acquisition unit configured to acquire data indicating the number of times that a measurement person who sits on a chair stands up and sits down repeatedly within a predetermined time, and the measurement object from the chair. A second acquisition means for acquiring data indicating the number of seconds until the user stands up, moves a certain distance, and then returns to the chair and sits down; and a real number determined in advance by the number of times indicated by the data acquired by the first acquisition means The sum of the value multiplied by the first coefficient and the value obtained by multiplying the number of seconds indicated by the data acquired by the second acquisition means by a second coefficient that is a predetermined real number is calculated. Is a program for functioning as an evaluation means for evaluating the degree of the musculoskeletal disorder of the person to be measured.

  The musculoskeletal disorder evaluation method according to the present invention includes a first measurement step for measuring the number of times that a person sitting on a chair stands up and sits down repeatedly within a predetermined time, and the person to be measured stands up from the chair. A second measurement step of measuring a number of seconds until the chair returns to the chair after moving a certain distance, and the number of times measured in the first measurement step is multiplied by a first coefficient that is a predetermined real number. A sum of a value and a value obtained by multiplying the number of seconds measured in the second measurement step by a second coefficient that is a predetermined real number, and the musculoskeletal disorder of the subject based on the sum And an evaluation step for evaluating the degree of.

  According to the present invention, it is possible to evaluate the degree of improvement of the musculoskeletal disorder of the person being measured and make it easier to evaluate the degree of the musculoskeletal disorder numerically.

The figure which shows an example of the whole structure of the musculoskeletal disorder evaluation system 9 which concerns on embodiment of this invention. The figure which shows an example of a structure of the chair rising test measuring device. The figure for demonstrating the measurement operation | movement of the chair standing-up test measuring apparatus 1. FIG. The flowchart which shows the flow of the measurement operation | movement of the chair standing-up test measuring apparatus 1. FIG. The figure which shows an example of a structure of the timed up and go measuring apparatus. The figure for demonstrating the measurement operation | movement of the timed up and go measuring apparatus 2. FIG. The flowchart which shows the flow of the measurement operation | movement of the timed up and go measuring apparatus 2. FIG. The figure which shows an example of a structure of the musculoskeletal obstacle evaluation apparatus 3. FIG. The figure which shows an example of a functional structure of the musculoskeletal disorder evaluation apparatus 3. FIG. The flowchart for demonstrating the processing operation of the musculoskeletal disorder evaluation apparatus 3. FIG. The figure which shows the experimental example which concerns on this invention. The figure which plotted the measurement result shown in FIG.

1. Embodiment 1-1. 1 is a diagram showing an example of the overall configuration of a musculoskeletal failure evaluation system 9 according to an embodiment of the present invention. The musculoskeletal failure evaluation system 9 includes a chair rising test measurement device 1, a timed up and go measurement device 2, a musculoskeletal failure evaluation device 3, and a communication line 4. The chair standing-up test measurement device 1 and the timed up and go measurement device 2 transmit data indicating the measurement results measured for the person to be measured to the musculoskeletal failure evaluation device 3 via the communication line 4. The musculoskeletal dysfunction evaluation device 3 evaluates the degree of musculoskeletal dysfunction of the measurement subject based on the transmitted data.

1-2. Configuration of Chair Standing Test Measurement Device FIG. 2 is a diagram illustrating an example of the configuration of the chair standing test measurement device 1. The chair rising test measurement device 1 is a device that measures the number of times that a person sitting in a chair stands up and sits down repeatedly within a certain time, and corresponds to the first measuring means in the present invention. The control unit 11 is means for controlling the operation of each unit of the chair standing test measuring apparatus 1. The control unit 11 includes an arithmetic processing device such as a CPU (Central Processing Unit) and a storage device such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and executes a program stored in these storage devices. The control unit 11 includes a timer 111 that includes a crystal resonator and the like and measures time.

  The storage unit 12 is a large-capacity storage unit such as a hard disk or a flash memory, and stores a program read by the control unit 11. The storage unit 12 may include a so-called removable disk, that is, a removable recording medium. The interface 13 is, for example, a connection terminal that is wired to an external device, a wireless interface that conforms to IrDA (Infrared Data Association), and the like, and transmits and receives various information to and from other connected devices. The interface 13 communicates with the musculoskeletal failure evaluation apparatus 3 via the communication line 4 under the control of the control unit 11.

Under the control of the control unit 11, the sound emitting unit 14 emits sound for notifying the measurement subject of the start of the chair standing-up test. The sound emitting unit 14 notifies the measurement subject of the start of the chair standing-up test by, for example, issuing a bell sound or words such as “start” from a speaker or the like.
The detection unit 15 detects the posture of the measurement subject in the chair standing-up test. The detection unit 15 includes a seating sensor 151 that detects whether or not the measurement subject is seated, and a standing sensor 152 that detects whether or not the measurement subject is standing.

1-3. Operation of Chair Standing Test Measuring Device FIG. 3 is a diagram for explaining the measuring operation of the chair rising test measuring device 1. The chair standing-up test is performed as follows. Before the start of the chair standing-up test, the person to be measured 5 puts both hands in front of the chest as shown in FIG. 3A and takes a posture seated on the chair 6 (hereinafter referred to as a sitting posture). Then, the person to be measured 5 stands up from the chair 6 while standing with his hands in front of the chest as shown in FIG. Take a standing posture). After the standing posture, the person to be measured 5 sits on the chair 6 with both hands folded in front of the chest, and returns to the original sitting posture. The measured person 5 performs an operation of repeating the sitting posture and the standing posture until the end signal is emitted by the sound emitting unit 14.

  The chair standing-up test measurement device 1 measures how many times the measurement subject 5 can repeat the above operation within a unit time (here, 30 seconds). The chair 6 is a sturdy chair without an armrest and a backrest, and has a seat surface on which the measurement subject 5 sits at a predetermined height (for example, 40 cm). A seating sensor 151 is provided on the seating surface. The seating sensor 151 includes a piezoelectric element that detects a pressure received from the body of the subject 5 when the seating surface supports the body of the subject 5, and thus the subject 5 is seated. Is detected.

  The standing sensor 152 has a configuration that radiates infrared rays and the like and a configuration that captures reflected waves that are reflected when the emitted infrared rays hit an object. The standing sensor 152 detects that the measurement subject 5 has stood up when the reflected wave reflected by the head of the measurement subject 5 is reflected. Here, standing up means standing up so that the back muscle of the person to be measured 5 is stretched and both knees are fully extended. The position detected by the standing sensor 152 is set in advance according to the position of the head when the person to be measured 5 is in the standing posture.

  FIG. 4 is a flowchart showing the flow of the measurement operation of the chair rising test measurement device 1. When an operation unit (not shown) receives an operation indicating an instruction to start a test, the control unit 11 of the chair rising test measurement device 1 causes the sound emitting unit 14 to emit a sound indicating the start of the chair rising test (step S101). Time measurement is started using the timer 111 (step S102). Then, the control unit 11 determines whether or not a predetermined time (predetermined time, here 30 seconds) has elapsed (step S103), and determines that the predetermined time has not elapsed (step S103). S103; NO), it is determined whether or not the measurement subject 15 has been detected to be upright and seated (step S104). At this time, the seating sensor 151 detects that the measured person 5 has moved away from the seating surface of the chair 6, and then the standing sensor 152 detects that the measured person 5 has stood up, and then the measured person 5 again When the seating sensor 151 detects that the user is seated on the chair 6, the control unit 11 determines that the standing and seating of the measurement subject 5 are detected by the detection unit 15.

  When it is determined that the standing and sitting of the person to be measured 5 has been detected by the detecting unit 15 (step S104; YES), the control unit 11 adds 1 to the numerical data stored on the RAM indicating the number of standing and sitting times. (Step S105), the process returns to Step S103. If it is determined that the measurement subject 5 has not been raised and seated (step S104; NO), the control unit 11 returns the process to step S103 without rewriting the numerical data.

  When it is determined in step S103 that the predetermined time has elapsed (step S103; YES), the control unit 11 ends the time measurement (step S106), and the numerical data is transmitted from the interface 13 via the communication line 4. And it transmits to the musculoskeletal disorder evaluation apparatus 3 (step S107). When ending the time measurement, the control unit 11 may cause the sound emitting unit 14 to emit sound indicating the end of the chair standing-up test.

1-4. Configuration of Timed Up and Go Measuring Device FIG. 5 is a diagram illustrating an example of the configuration of the timed up and go measuring device 2. The timed up and go measuring apparatus 2 is an apparatus that measures the number of seconds until a measurer stands up from a chair, moves a certain distance, and then sits back on the chair, and corresponds to the second measuring means in the present invention. The control unit 21 is means for controlling the operation of each unit of the timed up and go measuring apparatus 2. The control unit 21 includes an arithmetic processing device such as a CPU and a storage device such as a ROM and a RAM, and executes a program stored in these storage devices. The control unit 21 includes a timer 211 that includes a crystal resonator and the like and measures time.

  The storage unit 22 is a large-capacity storage unit such as a hard disk or a flash memory, and stores a program read by the control unit 21. The storage unit 22 may include a so-called removable disk, that is, a removable recording medium. The interface 23 is, for example, a connection terminal that is wired to an external device, a wireless interface that conforms to IrDA, or the like, and transmits and receives various information to and from other connected devices. The interface 23 communicates with the musculoskeletal failure evaluation apparatus 3 via the communication line 4 under the control of the control unit 21.

The sound emitting unit 24 emits sound for notifying the measurement subject of the start of the timed up and go test under the control of the control unit 21. The sound emitting unit 24 notifies the measurement subject of the start of the timed up and go test by, for example, issuing a bell sound or words such as “start” from a speaker or the like.
The detection unit 25 detects the posture of the measurement subject in the timed up and go test. The detection unit 25 includes a seating sensor 251 that detects whether or not the measurement subject is seated, and a passage sensor 252 that detects whether or not the measurement subject has passed a predetermined position.

1-5. Operation of Timed Up and Go Measuring Device FIG. 6 is a diagram for explaining the measuring operation of the timed up and go measuring device 2. In the timed up and go measuring apparatus 2, the person 5 to be measured stands up from the chair 7 (up), walks forward (goes), turns around the cone 8 provided forward at a predetermined distance, and returns to the chair 7 to sit down. It is a means necessary to measure the time until.

  Specifically, as shown in FIG. 6, the timed up and go test is performed using a chair 7 and a cone 8 provided at a fixed distance from the chair 7. As shown in FIG. 6, the distance between the chair 7 and the cone 8 is a distance from the center of the chair 7 to the center of the cone 8. The constant distance is 3 m as shown in FIG. The cone 8 may be any mark that can be recognized by the person to be measured 5 as a turning point and can move around. The cone 8 is not a solid object such as various objects or holography using laser light. It may be.

  The chair 7 is a sturdy chair without an armrest, and has a seating surface on which the measurement subject 5 is seated at a predetermined height (for example, 40 cm). A seating sensor 251 is provided on the seating surface. The seating sensor 251 includes a piezoelectric element that detects a pressure received from the body of the person to be measured 5 when the seating surface supports the body of the person to be measured 5, so that the person to be measured 5 is seated. Is detected.

  The passage sensor 252 has a configuration that radiates infrared rays and the like, and a configuration that captures reflected waves that are reflected when the emitted infrared rays hit an object. The passing sensor 252 radiates infrared rays or the like around the cone 8 and on the opposite side of the chair 7, and when the reflected wave reflected by the measured person 5 is captured, the measured person 5 moves around the cone 8. That is, that is, passing through the turning point.

  The timed up and go measuring device 2 starts time measurement when the subject 5 sitting on the chair 7 stands up, walks to the front cone 8, walks around the cone 8 to the chair 7, and sits down. The point is the end of time measurement, and the time from the start of time measurement to the end of time measurement is recorded.

  FIG. 7 is a flowchart showing the flow of the measuring operation of the timed up and go measuring apparatus 2. When an operation unit (not shown) receives an operation indicating an instruction to start a test, the control unit 21 of the timed up and go measuring apparatus 2 causes the sound emitting unit 24 to emit a sound indicating the start of the timed up and go test (step S21). S201), time measurement is started using the timer 211 (step S202). And the control part 21 judges whether the passage sensor 252 of the detection part 25 detected passage of the to-be-measured person 5 (step S203), and the passage sensor 252 has not detected passage of the to-be-measured person 5. (Step S203; NO), the determination in step S203 is continued. When it is determined that the passage sensor 252 has detected the passage of the person to be measured 5 (step S203; YES), the control unit 21 determines whether the seating sensor 251 of the detection unit 25 has detected the seating of the person 5 to be measured. Judgment is made (step S204). When it is determined that the seating sensor 251 has not detected the sitting of the measurement subject 5 (step S204; NO), the control unit 21 continues the determination of step S204. When it is determined that the seating sensor 251 detects the sitting of the person 5 to be measured (step S204; YES), the control unit 21 ends the time measurement by the timer 211 (step S205), and data indicating the measured time. Is transmitted from the interface 23 to the musculoskeletal failure evaluation apparatus 3 via the communication line 4 (step S206).

In the timed up and go measurement, the following points should be noted.
A. The direction of the cone 8 may be clockwise or counterclockwise.
A. Walking is preferably at maximum speed, but not running (running).
C. It is preferable that the chair 7 is appropriately fixed to the floor so that it does not move when the person to be measured 5 stands up and sits down, or is supported by the person to be measured.

1-6. FIG. 8 is a diagram illustrating an example of the configuration of the musculoskeletal failure evaluation apparatus 3. The musculoskeletal disorder evaluation device 3 returns to the chair after the person who is sitting on the chair has repeatedly performed the operation of standing up and sitting within a certain time, and the person being measured has stood up from the chair and moved a certain distance. Each of the number of seconds until sitting, and a value obtained by multiplying the number of times by a first coefficient that is a predetermined real number and a value obtained by multiplying the number of seconds by a second coefficient that is a predetermined real number It is an example of the evaluation means which calculates the sum and evaluates the degree of the musculoskeletal disorder of the measurement subject based on the sum.

  The control unit 31 is means for controlling the operation of each unit of the musculoskeletal failure evaluation apparatus 3. The control unit 31 includes an arithmetic processing device such as a CPU and a storage device such as a ROM and a RAM, and executes a program stored in these storage devices. The storage unit 32 is a large-capacity storage unit such as a hard disk or a flash memory, and stores a program read by the control unit 31. The storage unit 32 may include a so-called removable disk, that is, a removable recording medium. The interface 33 is, for example, a connection terminal that is wired to an external device, a wireless interface that conforms to IrDA, or the like, and transmits and receives various information to and from other connected devices. The interface 33 communicates with the chair rising test measurement device 1 and the timed up and go measurement device 2 via the communication line 4 under the control of the control unit 31. The display unit 34 is a display device using liquid crystal or the like, and displays an image according to an instruction from the control unit 31.

1-7. FIG. 9 is a diagram illustrating an example of a functional configuration of the musculoskeletal failure evaluation apparatus 3. As illustrated in FIG. 9, the control unit 31 of the musculoskeletal failure evaluation apparatus 3 functions as a first acquisition unit 311, a second acquisition unit 312, a calculation unit 313, a comparison unit 314, and an evaluation unit 315.
The first acquisition unit 311 acquires data indicating the number of times that the person sitting in the chair stands up and sits down repeatedly within a certain time from the chair rising test measurement device 1 via the interface 33.
The second acquisition unit 312 acquires from the timed up and go measurement apparatus 2 via the interface 33 data indicating the number of seconds until the person to be measured stands up from the chair, moves a certain distance, and then returns to the chair and sits down again. To do.
The calculation unit 313 is a value obtained by multiplying the number of times indicated by the data acquired by the first acquisition unit 311 by the first coefficient, and a value obtained by multiplying the number of seconds indicated by the data acquired by the second acquisition unit 312 by the second coefficient. And the sum. The first coefficient and the second coefficient are both predetermined real numbers.
The comparison unit 314 compares the evaluation value based on the sum calculated by the calculation unit 313 with the determined threshold value. Specifically, the comparison unit 314 calculates an evaluation value by adding a constant, which is a predetermined real number, to the sum calculated by the calculation unit 313, and determines whether the evaluation value is 0 or more. .

  The evaluation unit 315 is an example of an evaluation unit that evaluates the degree of the musculoskeletal disorder of the measurement subject 5 based on the sum calculated by the calculation unit 313. Specifically, the evaluation unit 315 evaluates that the measured person 5 has musculoskeletal syndrome when the comparison unit 314 determines that the evaluation value described above is 0 or more, and the evaluation value is less than 0. If it is determined that the subject 5 is not musculoskeletal syndrome, it is evaluated. Then, the evaluation unit 315 causes the display unit 34 to display the evaluation result.

  The evaluation unit 315 identifies which range the above-described evaluation value belongs to among a plurality of ranges divided by a plurality of threshold values, and exercises the subject 5 according to the range to which the evaluation value belongs. The degree of organ failure may be specified. For example, when the evaluation unit 315 specifies that the above-described evaluation value belongs to a range of 1 or more and less than 2 for a certain person 5 to be measured, the evaluation unit 315 specifies that the evaluation value belongs to 0 or more and less than 1 Assess that the degree of musculoskeletal syndrome is progressing more than the subject. Further, when the evaluation unit 315 specifies that the above-described evaluation value belongs to a range of “−2” or more and less than “−1” for a certain person to be measured 5, the evaluation value is “−1” or more and less than 0. Assess that it is less likely to have musculoskeletal syndrome than other subjects identified as belonging to.

1-8. FIG. 10 is a flowchart for explaining the processing operation of the musculoskeletal failure evaluation apparatus 3. The control unit 31 of the musculoskeletal failure evaluation apparatus 3 acquires data indicating the number of times measured in the chair standing-up test from the chair standing-up test measuring apparatus 1, and from the timed up-and-go measuring apparatus 2 in the timed up-and-go test. Data indicating the measured number of seconds is acquired (step S301). The control unit 31 substitutes the “number of times” and “seconds” indicated by the acquired data into the following equation (1) to calculate an evaluation value (step S302).
Evaluation value = −a × (number of times) + b × (number of seconds) + c (1)

  Here, the three coefficients a, b, and c used in Expression (1) are all positive real numbers, for example, a = 0.306758046, b = 0.055207427, and c = 5.551184577. These coefficients are obtained by, for example, discriminating, for example, a result of performing a chair standing-up test and a timed up-and-go test on each of the plurality of subjects 5 by non-onset and onset by loco-check. It may be calculated by performing statistical processing such as analysis.

  In Equation (1), the coefficient “−a” multiplied by the number of times corresponds to the first coefficient in the present invention, and is a negative real number. The coefficient “b” multiplied by the number of seconds corresponds to the second coefficient in the present invention, and is a positive real number. That is, the evaluation value is calculated by adding a value obtained by multiplying the number of times by a negative real number, a value obtained by multiplying the number of seconds by a positive real number, and a constant that is a predetermined real number. Therefore, the evaluation value decreases as the number of times increases, and increases as the number of seconds increases. Accordingly, it is evaluated that the higher the evaluation value is, the higher the possibility that the person to be measured 5 will have a musculoskeletal syndrome or that the musculoskeletal syndrome is progressing. This means that the more times you can sit up and sit back in a certain amount of time, the less likely the musculoskelet will be, and the longer it takes to get up from the chair, move a certain distance and return to the chair and sit down. The longer it is, the more likely the musculoskeletal disorder is.

  The control unit 31 that has calculated the evaluation value determines whether or not the calculated evaluation value is 0 or more (step S303), and if it is determined that the evaluation value is 0 or more (step S303; YES), the measurement target The “onset evaluation” that the person 5 has developed the musculoskeletal syndrome is performed (step S304). On the other hand, when it is determined that the calculated evaluation value is less than 0 (step S303; NO), the control unit 31 performs “non-evaluation evaluation” that the measured person 5 does not develop the musculoskeletal syndrome (step S303). S305).

  In step S304 or step S305, after evaluating that the person to be measured 5 has developed or has not developed musculoskeletal syndrome, the control unit 31 causes the display unit 34 to display the result of the evaluation (step S306). ).

  Conventional loco-checks diagnose whether or not the subject is locomotive through an inquiry, so if the subject misrecognizes the facts about his or her body, an inaccurate diagnostic result will be displayed. Often derived. For example, Loco Check has an item that asks whether or not socks can be worn with one leg standing, but the subject does not actually try it even though he does not actually wear socks with one leg. May answer “Take out”.

  Since the musculoskeletal disorder evaluation system 9 according to the present invention evaluates the degree of musculoskeletal disorder by conducting an actual test on the physical ability of the person 5 to be measured, an objective evaluation is made on the musculature of the person 5 to be measured. be able to. In addition, since the evaluation value is calculated by combining the results of two tests instead of one test, an erroneous diagnosis is made compared to a system that diagnoses whether or not it is musculoskeletal syndrome from only one test. Is less likely to do.

2. Experimental Example FIG. 11 is a diagram showing an experimental example according to the present invention. The experiment was conducted on 50 test subjects 5. Each person to be measured 5 performs “loco check” shown below in advance, and is classified into an unaffected person and an affected person based on the result.

The loco-check is performed by the measured person 5 answering the following questions (1) to (7). Of these questions, the person under test 5 who answers that one of the questions is applicable is diagnosed as having developed a musculoskeletal syndrome.
Question (1). I can't wear socks on one leg.
Question (2). Stumbling and sliding in the house.
Question (3). I cannot cross the pedestrian crossing with a green light.
Question (4). A handrail is needed to climb the stairs.
Question (5). I can't walk for about 15 minutes.
Question (6). It is difficult to shop for about 2kg and take it home (about two 1L milk cartons).
Question (7). Difficult to do some heavy work at home (use of a vacuum cleaner, raising and lowering of a band)

  Each measured person 5 classified into an unaffected person and an onset person performs the above-described chair standing-up test and the timed up and go test, respectively, and “X1” indicating the number of times described above and “X2” indicating the number of seconds. Each pair is measured.

  FIG. 11 (a) shows a table describing the above-mentioned number of times and the number of seconds for 23 persons diagnosed as having no musculoskeletal syndrome by loco-check. FIG. 11B shows a table in which “X1” indicating the number of times described above and “X2” indicating the number of seconds are described for 27 persons diagnosed as having a musculoskeletal syndrome by loco-check. .

FIG. 12 is a plot of the measurement results shown in FIG. The horizontal axis of FIG. 12 is X1 indicating the number of times, and the vertical axis is X2 indicating the number of seconds. When the evaluation value is 0 and X2 indicating the number of seconds is shifted and rearranged, the above-described equation (1) becomes the following equation (2).
X2 = (a × X1-c) / b (2)

  That is, the solid line represented by Expression (2) is a set of points at which the evaluation value calculated by Expression (1) is 0 on the plane represented by X1 and X2. The region LSP shown in FIG. 12 is a region where the evaluation value calculated by the expression (1) is 0 or more on the plane indicated by X1 and X2. And the area | region LSM shown in FIG. 12 is an area | region where the evaluation value calculated by Formula (1) is less than 0 in the plane shown by X1 and X2. As shown in FIG. 12, most of the subjects 5 diagnosed as affected by the lococheck are plotted in the region LSP, and most of the subjects 5 diagnosed as unaffected by the lococheck are in the region LSM. It is plotted. Of all subjects 5 (50), those diagnosed as onset and plotted in the region LSP (21) and those diagnosed as unaffected and plotted in the region LSM (21) The discrimination efficiency was 84%, where the ratio of the number (42 people) added to is the discrimination efficiency.

  As described above, the subject 5 is allowed to perform both the chair standing-up test and the timed up and go test, and the respective results are substituted into a linear function of two variables as shown in Equation (1). By comparing the obtained evaluation value with a threshold value, it was found that a diagnosis having a high correlation with the loco-check can be made as to whether or not the subject 5 has developed musculoskeletal syndrome.

3. Modification The above is the description of the embodiment, but the contents of this embodiment can be modified as follows. Further, the following modifications may be combined.
3-1. Modification 1
In the above-described embodiment, the musculoskeletal disorder evaluation device 3 acquires data indicating the number of times measured in the chair standing-up test from the chair standing-up test measuring device 1 and the timed up-and-go measuring device 2 from the timed up-and-go measuring device 2. Although data indicating the number of seconds measured in the test has been acquired, these data need not be acquired from these devices. For example, the user may directly input the result of the chair standing test for the person to be measured 5 or the result of the timed up and go test to the musculoskeletal disorder evaluation apparatus 3. In this case, the musculoskeletal disorder evaluation apparatus 3 only needs to include an operation unit that receives an operation of a user who inputs data. Moreover, the musculoskeletal failure evaluation apparatus 3 may request the test result data from the server apparatus storing the test result, and acquire the data from the server apparatus.

3-2. Modification 2
In the embodiment described above, the musculoskeletal disorder evaluation apparatus 3 diagnoses whether or not the measured person 5 has developed musculoskeletal syndrome, but may further evaluate the degree of musculoskeletal disorder. . For example, the broken line shown in FIG. 12 illustrates the following equation (3).
X2 = (a * X1-c) / b + K (3)

  Here, K is a positive real number, for example, 20. In the region LSP, “X1 (number of times)” that is the result of the chair standing test of the subject 5 who developed musculoskeletal syndrome and “X2 (seconds)” that is the result of the timed up and go test are plotted. Although it is a region, it is divided into the region LSP1 where the evaluation value is less than K and the region LSP2 where the evaluation value is greater than or equal to K by the above-described equation (3).

  The points plotted in the region LSP1 have a corresponding evaluation value of 0 or more and less than K. On the other hand, the points plotted in the region LSP2 have a corresponding evaluation value of K or more. Therefore, the measurement subject 5 in which the above-described test results are plotted in the region LSP2 has a higher degree of symptoms of the musculoskeletal syndrome than the measurement subject 5 plotted in the region LSP1.

For example, a two-dot chain line shown in FIG. 12 illustrates the following formula (4).
X2 = (a × X1-c) / b−K (4)

  As described above, K is a positive real number, for example, 20. In the region LSM, “X1 (number of times)” that is the result of the chair standing test of the subject 5 who has not developed the musculoskeletal syndrome and “X2 (number of seconds)” that is the result of the timed up and go test are plotted. The region is divided into a region LSM1 where the evaluation value is −K or more and a region LSM2 where the evaluation value is less than −K according to the above-described equation (4).

  The points plotted in the region LSM1 have a corresponding evaluation value of −K or more and less than 0. On the other hand, the points plotted in the region LSM2 have a corresponding evaluation value less than -K. Therefore, the person under test 5 in which the test results described above are plotted in the region LSM1 has a higher risk of musculoskeletal syndrome than the patient under test 5 plotted in the region LSM2.

  As described above, when the calculated evaluation value is 0 or more, the musculoskeletal dysfunction evaluation device 3 in the modified example evaluates and calculates that the symptom of the subject's musculoskeletal syndrome is heavier as the evaluation value increases. When the evaluation value is less than 0, the larger the evaluation value, the higher the risk that the person to be measured will have musculoskeletal syndrome. As a result, the person to be measured 5 not only knows whether or not he / she has a musculoskeletal syndrome, but also the possibility of becoming a musculoskeletal syndrome, the degree of symptoms of the musculoskeletal syndrome by the numerical value of the evaluation value, or It can be known from which category the evaluation value belongs. In other words, since the musculoskeletal disorder evaluation system 9 according to the present invention can evaluate the degree of musculoskeletal damage numerically and evaluate it step by step, the person to be measured 5 performs training performed to recover the musculoskeletal. It is easy to grasp the effect of the improvement, the degree of improvement, etc., and it is easy to get motivation to train.

3-3. Modification 3
A program executed by the control unit 31 of the musculoskeletal failure evaluation apparatus 3 can be read by a computer device such as a magnetic recording medium such as a magnetic tape or a magnetic disk, an optical recording medium such as an optical disk, a magneto-optical recording medium, or a semiconductor memory. It can be provided in a state stored in a simple recording medium. It is also possible to download this program via a network such as the Internet. Note that various devices other than the CPU may be applied as the control means exemplified by the control unit 31 described above. For example, a dedicated processor or the like is used.

DESCRIPTION OF SYMBOLS 1 ... Chair stand-up test measuring device, 11 ... Control part, 111 ... Timer, 12 ... Memory | storage part, 13 ... Interface, 14 ... Sound emission part, 15 ... Detection part, 151 ... Seating sensor, 152 ... Standing sensor, 2 ... Time Do-up-and-go measuring device, 21 ... control unit, 211 ... timer, 22 ... memory unit, 23 ... interface, 24 ... sound emission unit, 25 ... detection unit, 251 ... sitting sensor, 252 ... passing sensor, 3 ... motor unit failure Evaluation device, 31 ... control unit, 311 ... first acquisition unit, 312 ... second acquisition unit, 313 ... calculation unit, 314 ... comparison unit, 315 ... evaluation unit, 32 ... storage unit, 33 ... interface, 34 ... display unit 4, communication line, 5 ... person to be measured, 6 ... chair, 7 ... chair, 8 ... cone, 9 ... motor organ failure evaluation system.

Claims (8)

A first measuring means for measuring the number of times that the measurement subject sitting on the chair repeatedly stands up and sits down within a predetermined time;
Second measuring means for measuring the number of seconds until the person to be measured stands up from the chair, moves a certain distance, and returns to the chair and sits down;
A value obtained by multiplying the number of times measured by the first measuring means by a first coefficient which is a predetermined real number and a second coefficient which is a predetermined real number by the second number measured by the second measuring means. A musculoskeletal disorder evaluation system comprising: an evaluation unit that calculates a sum of the multiplied values and evaluates the degree of the musculoskeletal disorder of the measurement subject based on the sum. The first coefficient is a negative real number;
The second coefficient is a positive real number;
The evaluation means calculates an evaluation value by adding a constant, which is a predetermined real number, to the calculated sum, and when the evaluation value is 0 or more, the measured person has musculoskeletal syndrome The musculoskeletal disorder evaluation system according to claim 1, wherein: The evaluation means has the following formula:
Evaluation value = −0.306758046 × (the number of times) + 0.055207427 × (the number of seconds) +5.551184577
2. The musculoskeletal disorder evaluation system according to claim 1, wherein an evaluation value is calculated by the method, and when the evaluation value is 0 or more, the measurement subject is evaluated as having a musculoskeletal syndrome. The evaluation means includes
When the calculated evaluation value is 0 or more, the larger the evaluation value, the higher the symptom of the subject's musculoskeletal syndrome,
4. The exercise according to claim 2, wherein when the calculated evaluation value is less than 0, the greater the evaluation value, the higher the risk that the measured person will have a musculoskeletal syndrome. 5. Disability assessment system. The predetermined time is 30 seconds,
The musculoskeletal injury evaluation system according to any one of claims 1 to 4, wherein the fixed distance is 3 meters. First acquisition means for acquiring data indicating the number of times that the measurement subject sitting on the chair has stood up and sat down repeatedly within a certain time;
Second acquisition means for acquiring data indicating the number of seconds until the person to be measured stands up from the chair, moves a certain distance, and returns to the chair and sits down;
A value obtained by multiplying the number of times indicated by the data acquired by the first acquisition means by a first coefficient which is a predetermined real number and the number of seconds indicated by the data acquired by the second acquisition means are predetermined. An estimator disorder evaluation apparatus comprising: an evaluation unit that calculates a sum of a value obtained by multiplying the second coefficient, which is a real number, and evaluates the degree of the musculoskeletal disorder of the measurement subject based on the sum. Computer
First acquisition means for acquiring data indicating the number of times that the measurement subject sitting on the chair has stood up and sat down repeatedly within a certain time;
Second acquisition means for acquiring data indicating the number of seconds until the person to be measured stands up from the chair, moves a certain distance, and returns to the chair and sits down;
A value obtained by multiplying the number of times indicated by the data acquired by the first acquisition means by a first coefficient which is a predetermined real number and the number of seconds indicated by the data acquired by the second acquisition means are predetermined. A program for calculating a sum of values obtained by multiplying the second coefficient, which is a real number, and functioning as an evaluation means for evaluating the degree of musculoskeletal disorder of the subject based on the sum. A first measurement step for measuring the number of times that the measurement subject sitting on the chair repeatedly stands up and sits down within a predetermined time;
A second measurement step of measuring the number of seconds until the person to be measured stands up from the chair, moves a certain distance, and returns to the chair and sits down;
A value obtained by multiplying the number of times measured in the first measurement step by a first coefficient which is a predetermined real number and a second number which is a predetermined real number in the number of seconds measured in the second measurement step. An evaluation step of calculating a sum of a value multiplied by a coefficient and evaluating the degree of the musculoskeletal disorder of the subject based on the sum.

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