JP2016043049A - Fatigue degree determining device - Google Patents

Fatigue degree determining device Download PDF

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JP2016043049A
JP2016043049A JP2014169583A JP2014169583A JP2016043049A JP 2016043049 A JP2016043049 A JP 2016043049A JP 2014169583 A JP2014169583 A JP 2014169583A JP 2014169583 A JP2014169583 A JP 2014169583A JP 2016043049 A JP2016043049 A JP 2016043049A
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working days
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fatigue
walking speed
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直人 高柳
Naoto Takayanagi
直人 高柳
理恵 若杉
Rie Wakasugi
理恵 若杉
元喜 須藤
Motoyoshi Sudo
元喜 須藤
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Kao Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a device that can grasp of the increase and decrease of a periodic fatigue degree by using an accelerometer portable in daily life.SOLUTION: A portable fatigue degree determining device includes an acceleration sensor 2 and calculation means. The calculation means has: a daily average walking speed calculation function for calculating a daily average walking speed (hereinafter referred to as the daily average walking speed) from acceleration data detected by the acceleration sensor 2; a function for associating the daily average walking speed with the working days or the non-working days showing what day of the continuous working days or the non-working days, by entering continuous working days or non-working days concerning the working days and the non-working days repeated periodically; a function for calculating a correlation coefficient between the working days or the non-working days and the daily average walking speed; and a fatigue degree determination function for determining the fatigue accumulation tendency in the working day or the fatigue accumulation tendency in the non-working day, based on the correlation coefficient.SELECTED DRAWING: Figure 1

Description

本発明は、周期的に増減する疲労度の測定装置に関する。   The present invention relates to an apparatus for measuring the degree of fatigue that increases or decreases periodically.

健康状態を管理する上で、自己の疲労度を知ることは重要である。
従来、人体の疲労度を定量的に測定する装置として、サーモカメラにより末梢部の皮膚温を測定し、皮膚温の低下とストレスによる疲労との関係を利用して疲労度を評価する装置が知られている(特許文献1)。また、腰と足に加速度計を装着して歩行中又は走行中の加速度波形を記録し、双方の加速度計で検出されるセンサ出力の立ち上がりの時間差から疲労の有無を判別する装置が知られている(特許文献2)。
Knowing your own fatigue level is important in managing your health.
Conventionally, as a device for quantitatively measuring the fatigue level of the human body, a device for measuring the skin temperature of the peripheral part with a thermo camera and evaluating the fatigue level using the relationship between the decrease in skin temperature and fatigue due to stress is known. (Patent Document 1). Also known is a device that wears accelerometers on the waist and legs, records acceleration waveforms while walking or running, and determines the presence or absence of fatigue from the time difference between the rises of sensor outputs detected by both accelerometers. (Patent Document 2).

一方、日常生活では週末疲労、週末明け疲労のように周期的に疲労が増減することがあり、そのような場合には、疲労度の増減の周期的な繰り返しの中における当該時点の疲労度を理解することが好ましい。しかしながら、従来の疲労度の測定装置では、その時々の疲労度を測定することはできても、周期的な疲労度の増減の繰り返しにおける当該時点での疲労の位置づけを知ることができない。また、今周期の疲労度を、前周期の疲労度と対比する場合のように、疲労度を周期的な繰り返し単位で比較することもできない。   On the other hand, in daily life, fatigue may increase or decrease periodically, such as weekend fatigue and end-of-weekend fatigue. It is preferable to understand. However, even if the conventional fatigue level measuring apparatus can measure the fatigue level at that time, it cannot know the position of the fatigue at that point in the cycle of cyclical increase and decrease of the fatigue level. In addition, the fatigue level cannot be compared in terms of periodic repetition, as in the case where the fatigue level of the current cycle is compared with the fatigue level of the previous cycle.

さらに、精神的に疲労を意識することなく日常生活を送っている人は、特別な機器を用いた疲労度の測定は行わない傾向にあるので、気づかない内に疲労が蓄積してしまう場合がある。このため、疲労度を、日常的に携帯できる装置によって手軽に測定できるようにすることが好ましい。   Furthermore, since people who live daily without being mentally conscious of fatigue tend to not measure the degree of fatigue using special equipment, fatigue may accumulate without being noticed. is there. For this reason, it is preferable that the degree of fatigue can be easily measured by an apparatus that can be carried on a daily basis.

特許2702683号公報Japanese Patent No. 2702683 特許5322168号公報Japanese Patent No. 5322168

上述の従来技術に対し、本発明の課題は、日常生活で携帯可能な加速度センサを用いて、周期的な疲労度の増減の把握を可能とする疲労度判定装置の提供に関する。   The subject of this invention is related with provision of the fatigue determination apparatus which can grasp | ascertain the increase / decrease in a periodic fatigue degree using the acceleration sensor which can be carried in everyday life with respect to the above-mentioned prior art.

本発明者は、例えば、月曜から金曜までの就労日と、土曜及び日曜の非就労日が繰り返されるように、周期的に就労日と非就労日が繰り返される場合に、一日の平均歩行速度が、連続する就労日の日数によって変化する傾向があり、これに基づいて蓄積疲労の起こりやすさを判定できることを見出し、本発明を想到した。   The present inventor, for example, the average walking speed of a day when a working day and a non-working day are repeated periodically such that a working day from Monday to Friday and a non-working day on Saturday and Sunday are repeated. However, the inventors have found that the tendency to change depending on the number of days of consecutive working days can be determined based on this tendency, and the present invention has been conceived.

即ち、本発明は、加速度センサ及び疲労度を判定する演算手段を備えた携帯可能な疲労度判定装置であって、前記演算手段が、
加速度センサで検出される加速度データから日ごとの平均歩行速度である、一日平均歩行速度を算出する一日平均歩行速度算出機能、
周期的に繰り返される就労日と非就労日について、連続する就労日又は非就労日が入力されることにより、一日平均歩行速度を、該一日平均歩行速度が、連続する就労日又は非就労日の何日目であるかを表す就労日数又は非就労日数と関連づける機能、
就労日数又は非就労日数と一日平均歩行速度の相関係数を算出する機能、
前記相関係数に基づき、就労日における疲労蓄積傾向又は非就労日における疲労蓄積傾向を判定する疲労度判定機能
を有する疲労度判定装置を提供する。
That is, the present invention is a portable fatigue level determination apparatus provided with an acceleration sensor and a calculation level for determining fatigue level, wherein the calculation level includes:
A daily average walking speed calculation function for calculating a daily average walking speed, which is an average walking speed for each day from acceleration data detected by an acceleration sensor,
For working days and non-working days that are repeated periodically, the daily average walking speed is input by inputting continuous working days or non-working days, and the daily average walking speed is the continuous working days or non-working days. A function to associate with the number of working days or non-working days representing the day of the day,
A function to calculate the correlation coefficient between the working days or non-working days and the daily average walking speed;
Provided is a fatigue level determination device having a fatigue level determination function for determining a fatigue accumulation tendency on a working day or a fatigue accumulation tendency on a non-working day based on the correlation coefficient.

本発明によれば、周期的に就労日と非就労日が繰り返される被験者について、日常生活で携帯可能な装置により、就労又は非就労による疲労の蓄積傾向の強さがわかる。したがって、主観的には就労による疲労を感じていない人でも、就労による疲労蓄積傾向が強いと判定された場合には、疲労がさらに蓄積されないように注意することができ、健康的な生活リズムを維持することができる。一方、疲労蓄積傾向が低いと判定された場合、又は疲労蓄積傾向が無いと判定された場合には、現状の生活ズムを維持していけばよいことがわかる。よって、本発明は、健康的な生活リズムの維持に有用となる。   According to the present invention, with respect to a subject whose working days and non-working days are repeated periodically, the strength of the accumulation tendency of fatigue due to working or non-working can be found by a portable device in daily life. Therefore, even if a person who does not feel fatigue due to work subjectively is determined to have a strong tendency to accumulate fatigue due to work, he / she can be careful not to accumulate further fatigue, and to maintain a healthy lifestyle rhythm. Can be maintained. On the other hand, when it is determined that the fatigue accumulation tendency is low, or when it is determined that there is no fatigue accumulation tendency, it is understood that the current life rhythm should be maintained. Therefore, the present invention is useful for maintaining a healthy life rhythm.

図1は、実施例の疲労度判定装置のブロック構成図である。FIG. 1 is a block diagram of a fatigue level determination apparatus according to an embodiment. 図2は、就労日における就労日数と一日平均歩行速度との関係図である。FIG. 2 is a diagram showing the relationship between the number of working days and the daily average walking speed on working days. 図3は、非就労日における非就労日数と一日平均歩行速度との関係図である。FIG. 3 is a relationship diagram between the non-working days and the daily average walking speed on non-working days. 図4は、就労日における疲労蓄積傾向と非就労日における活動量の増減傾向のパターンを示す表である。FIG. 4 is a table showing a pattern of fatigue accumulation tendency on working days and an increase / decrease tendency of activity amount on non-working days.

以下、図面を参照しつつ本発明を具体的に説明する。
図1は、本発明の一実施例の疲労度判定装置1のブロック構成図である。この疲労度判定装置1は、加速度センサ2と演算手段3を有し、演算手段3には、データ記憶部4、被験者の就労日又は非就労日に関する情報を入力する入力用ボタン5、演算手段3の算出結果を出力するディスプレイ6が接続している。この疲労度判定装置1は、加速度センサにより歩数をカウントする携帯可能な歩数計に組み込んでもよい。
Hereinafter, the present invention will be specifically described with reference to the drawings.
FIG. 1 is a block diagram of a fatigue level determination apparatus 1 according to an embodiment of the present invention. This fatigue level determination device 1 includes an acceleration sensor 2 and a calculation means 3. The calculation means 3 includes a data storage unit 4, an input button 5 for inputting information on the working day or non-working day of the subject, and calculation means. A display 6 that outputs the calculation result 3 is connected. The fatigue level determination device 1 may be incorporated in a portable pedometer that counts the number of steps by an acceleration sensor.

加速度センサ2としては、平均歩行速度を算出できる加速度データを出力するものを使用する。この場合、必要に応じて歩幅等の情報を入力することにより歩行速度を推定するものであってもよい。より具体的には、加速度センサとして、例えば、パナソニック(株)製デイカロリEW−NK10を使用することができる。   As the acceleration sensor 2, a sensor that outputs acceleration data capable of calculating an average walking speed is used. In this case, the walking speed may be estimated by inputting information such as a stride if necessary. More specifically, as an acceleration sensor, for example, Decalorie EW-NK10 manufactured by Panasonic Corporation can be used.

演算手段3は、暦及び時計を内蔵しており、加速度センサ2から出力された加速度データから、日ごとの平均歩行速度である一日平均歩行速度を算出する機能を有する。この一日平均歩行速度の算出には、活動時の加速度データのみを使用する。したがって、意図的な歩行はしていないが、結果的に足踏みをすることにより加速度センサ2が加速度を検出し、その加速度データが演算手段3に出力された場合、その加速度データは一日平均歩行速度の算出に使用されない。このように加速度データを選別するため、演算手段3に歩行としての安定性を評価する機能を持たせ、所定の安定性を有していないと評価される加速度データは一日平均歩行速度の算出に使用しないことが好ましい。例えば、前後方向及び上下方向の加速度の振幅が所定の範囲外にある加速度データや、連続する歩数から所定の歩数(例えば、10歩)に満たない場合の加速度データは、一日平均歩行速度の算出に使用しないとする。   The calculation means 3 incorporates a calendar and a clock and has a function of calculating a daily average walking speed, which is an average walking speed for each day, from the acceleration data output from the acceleration sensor 2. For calculating the daily average walking speed, only the acceleration data at the time of activity is used. Therefore, although the intentional walking is not performed, when the acceleration sensor 2 detects the acceleration by stepping as a result and the acceleration data is output to the calculating means 3, the acceleration data is the average daily walking. Not used to calculate speed. Thus, in order to select acceleration data, the calculation means 3 has a function of evaluating stability as walking, and acceleration data evaluated as not having predetermined stability is calculated as a daily average walking speed. It is preferable not to use it. For example, acceleration data in which the amplitude of the longitudinal and vertical accelerations is out of a predetermined range, or acceleration data when the number of consecutive steps is less than a predetermined number of steps (for example, 10 steps) is the average daily walking speed. Suppose that it is not used for calculation.

また、演算手段3は、疲労度判定装置1の使用者が、周期的に繰り返される就労日と非就労日に関する情報を入力用ボタン5から入力すると、その情報をデータ記憶部4に記憶させる。この就労日と非就労日に関する情報は、当該使用者の就労サイクルに応じて曜日で入力されてもよく、日数で入力されてもよい。例えば、月曜、火曜、水曜、木曜、金曜を就労日とし、土曜、日曜を非就労日としてもよく、連続する就労を5日、非就労を2日としてもよい。周期的に繰り返される就労日と非就労日に関する情報を日数で入力した場合、使用者は、疲労度判定装置の使用を始める当該日にちが、連続する就労の何日目であるかも入力する。   Further, when the user of the fatigue level determination apparatus 1 inputs information on the working days and the non-working days that are periodically repeated from the input button 5, the calculation means 3 stores the information in the data storage unit 4. The information regarding the working day and the non-working day may be input as a day of the week according to the working cycle of the user, or may be input as the number of days. For example, Monday, Tuesday, Wednesday, Thursday, Friday may be a working day, Saturday, Sunday may be a non-working day, continuous working may be 5 days, and non-working may be 2 days. When the information regarding the working day and the non-working day that are repeated periodically is input in the number of days, the user also inputs the day of continuous working that is the day on which the fatigue level determination device starts to be used.

また、演算手段3には、速度算出の精度を上げるため、必要に応じて被験者の年齢、身長、体重を入力しておくことが好ましい。   Further, it is preferable to input the age, height, and weight of the subject to the calculation means 3 as necessary in order to increase the accuracy of speed calculation.

演算手段3は、一日平均歩行速度を、該一日平均歩行速度が、連続する就労又は非就労の何日目のものであるかを関連づける。例えば、月曜、火曜、水曜、木曜、金曜が就労日で、土曜、日曜が非就労日の場合に、就労日によって蓄積される週末疲労の疲労度を判定するとき、ある日の一日平均歩行速度が就労の何日目のものであるか表す就労日数として、日ごとに増加する変数(例えば、月曜=1、火曜=2、水曜=3、木曜=4、金曜=5)を割り当てる。   The calculation means 3 correlates the daily average walking speed with which day of continuous working or non-working the daily average walking speed is. For example, when working days are Monday, Tuesday, Wednesday, Thursday, and Friday, and Saturdays and Sundays are non-working days, when determining the fatigue level of weekend fatigue accumulated by working days, the average daily walking of a day As the number of working days representing the day of the working day, variables that increase day by day (for example, Monday = 1, Tuesday = 2, Wednesday = 3, Thursday = 4, Friday = 5) are assigned.

また、週明け疲労のように、非就労日によって蓄積され、就労日に持ち越している疲労度を判定するとき、ある日の一日平均歩行速度が非就労の何日目のものであるかを表す非就労日数として、就労日が一定の数値で、非就労日で漸増する変数(例えば、月曜=1、火曜=1、水曜=1、木曜=1、金曜=1、土曜=2、日曜=3)、あるいは就労日と非就労日が異なるが定数をとる変数(例えば、月曜=1、火曜=1、水曜=1、木曜=1、金曜=1、土曜=2、日曜=2)を割り当て、一日平均歩行速度と、これらの数値を関連づけて保存する。前者の場合、土曜日が、就労日である月曜から金曜までと、非就労日である日曜日との中間に位置づけられ、日によって労働する日も労働しない日もあるという場合に適用することが好ましい。   Also, when determining the degree of fatigue that is accumulated on non-working days and carried over on work days, such as the fatigue at the beginning of the week, the average daily walking speed of a given day is the number of non-working days. As the number of non-working days to be expressed, a variable in which the working day is a constant numerical value and gradually increases with the non-working day (for example, Monday = 1, Tuesday = 1, Wednesday = 1, Thursday = 1, Friday = 1, Saturday = 2, Sunday = 3) or variables with different working days and non-working days but taking constants (eg Monday = 1, Tuesday = 1, Wednesday = 1, Thursday = 1, Friday = 1, Saturday = 2, Sunday = 2) The daily average walking speed and these values are stored in association with each other. In the former case, Saturday is positioned between Monday to Friday, which is a working day, and Sunday, which is a non-working day, and is preferably applied when there are days that work depending on the day and days that do not work.

演算手段3には、上述のように関連づけた就労日数又は非就労日数と一日平均歩行速度から、これらの関係図を出力する機能を持たせることが好ましい。例えば、図2に示すように就労日数と一日平均歩行速度の散布図を出力し、ディスプレイ6に表示させる。あるいは、図3に示すように、非就労日数と一日平均歩行速度の散布図を出力し、ディスプレイ6に表示させる。   It is preferable that the calculation means 3 has a function of outputting these relationship diagrams based on the working days or non-working days and the daily average walking speed associated as described above. For example, as shown in FIG. 2, a scatter diagram of working days and daily average walking speed is output and displayed on the display 6. Alternatively, as shown in FIG. 3, a scatter diagram of non-working days and daily average walking speed is output and displayed on the display 6.

さらに、演算手段3は、就労日数と一日平均歩行速度の相関係数r1又は非就労日数と一日平均歩行速度の相関係数r2を算出する機能を有する。   Further, the calculation means 3 has a function of calculating a correlation coefficient r1 between the working days and the daily average walking speed or a correlation coefficient r2 between the non-working days and the daily average walking speed.

この就労日数と一日平均歩行速度の相関係数r1の数値が−1に近いほど、被験者は、就労で疲労が強く蓄積される傾向(強い週末疲労)を有し、反対に相関係数r1の数値が+1に近いほど、被験者は、非就労日で蓄積された疲労を就労日に持ち越し(週明け疲労)、その疲労が就労日に回復していく傾向にあるといえる。   The closer the numerical value of the correlation coefficient r1 between the working days and the daily average walking speed is closer to -1, the more the subject tends to accumulate fatigue due to working (strong weekend fatigue). The closer the value of +1 is to +1, the more the test subject carries over the fatigue accumulated on the non-working day (working day fatigue), and the fatigue tends to recover on the working day.

同様に、非就労日数と一日平均歩行速度の相関係数r2の数値が−1に近いほど、被験者は、非就労日に疲労が強く蓄積され(強い週明け疲労)、反対に相関係数r2の数値が+1に近いほど、被験者は、非就労日で疲労を回復させて、次の就労日を迎えているといえる。   Similarly, the closer the numerical value of the correlation coefficient r2 between the number of non-working days and the daily average walking speed is closer to -1, the more the subject accumulates fatigue on the non-working days (strong daybreak fatigue). It can be said that the closer the numerical value of r2 is to +1, the more the subject recovers his / her fatigue on the non-working day and the next working day is reached.

そこで、本発明では、上述の相関関係に基づき、就労日における疲労蓄積傾向、又は非就労日における疲労蓄積傾向を判定する疲労度判定機能を演算手段3に持たせる。なお、非就労日における歩行速度の低下は、疲労によるのではなく休息による場合があり、歩行速度の上昇は、疲労が無いのではなく、余暇を活動的に過ごしていることによる場合があるので、非就労日数と一日平均歩行速度の相関係数r2から疲労度を判定するのではなく、活動量を判定してもよい。   Therefore, in the present invention, the computing means 3 is provided with a fatigue degree determination function for determining a fatigue accumulation tendency on a working day or a fatigue accumulation tendency on a non-working day based on the above correlation. Note that the decrease in walking speed on non-working days may not be due to fatigue, but may be due to rest, and the increase in walking speed may not be due to fatigue, but may be due to active leisure time. Instead of determining the degree of fatigue from the correlation coefficient r2 between the number of non-working days and the daily average walking speed, the amount of activity may be determined.

例えば、演算手段3が、疲労蓄積傾向の程度を相関係数の数値によって複数段階に判定する。より具体的には、次の7段階とすることができる。   For example, the computing means 3 determines the degree of fatigue accumulation tendency in a plurality of stages based on the numerical value of the correlation coefficient. More specifically, the following seven stages can be set.

就労日数と一日平均歩行速度との相関係数r1について、
0.7<r1 強い週明け疲労傾向あり
0.4<r1≦0.7 週明け疲労傾向あり
0.2<r1≦0.4 弱い週明け疲労傾向あり
−0.2<r1≦0.2 週末疲労傾向なし
−0.4<r1≦−0.2 弱い週末疲労傾向あり
−0.7<r1≦−0.4 週末疲労傾向あり
r1≦−0.7 強い週末疲労傾向あり
About correlation coefficient r1 between working days and daily average walking speed,
0.7 <r1 There is a strong tendency toward fatigue at the end of the week 0.4 <r1≤0.7 A tendency toward fatigue at the end of the week 0.2 <r1≤0.4 There is a tendency toward weak fatigue at the end of the week -0.2 <r1≤0.2 No fatigue tendency on weekends −0.4 <r1 ≦ −0.2 Fatigue tendency on weekends −0.7 <r1 ≦ −0.4
r1 ≦ −0.7 Strong weekend fatigue tendency

非就労日数と一日平均歩行速度との相関係数r2について、
0.7<r2 非就労日における活動量増加傾向強い
0.4<r2≦0.7 非就労日における活動量増加傾向やや強い
0.2<r2≦0.4 非就労日における活動量増加傾向弱い
−0.2<r2≦0.2 非就労日における活動量増加傾向無し
−0.4<r2≦−0.2 非就労日における活動量低減傾向弱い
−0.7<r2≦−0.4 非就労日における活動量低減傾向やや強い
r2≦−0.7 非就労日における活動量低減傾向強い
About the correlation coefficient r2 between non-working days and daily average walking speed,
0.7 <r2 Strong activity trend on non-working days 0.4 <r2 ≦ 0.7 Strong activity trend on non-working days Slightly strong 0.2 <r2 ≦ 0.4 Active activity trend on non-working days Weak -0.2 <r2≤0.2 No tendency to increase activity on non-working days -0.4 <r2≤-0.2 Low tendency to reduce activity on non-working days -0.7 <r2≤-0. 4 Activity reduction trend on non-working days is slightly strong
r2 ≦ −0.7 Strong tendency to reduce activity on non-working days

この他、上述の2つの相関係数r1、r2を組み合わせて就労日における疲労蓄積傾向や非就労日における活動量の増減の傾向を判定してもよい。さらに、就労日における疲労蓄積傾向と非就労日における活動量の増減傾向をパターン分けしておき、被験者の就労日及び非就労日の当該周期がいずれのパターンに属するかを、就労日及び非就労日の周期ごとに判定してもよい。このパターン分けは、例えば、図4に示すように行うことができる。なお、図4では、一例として、月曜、火曜、水曜、木曜、金曜が就労日で、土曜、日曜が非就労日の場合を示し、土曜及び日曜を週末としている。   In addition, the above-described two correlation coefficients r1 and r2 may be combined to determine the tendency to accumulate fatigue on working days and the tendency to increase or decrease the amount of activity on non-working days. Furthermore, the fatigue accumulation tendency on working days and the increase / decrease tendency of the amount of activity on non-working days are divided into patterns, and the pattern of whether the cycle of the subject's working days and non-working days belongs to the working days and non-working days You may determine for every period of a day. This pattern division can be performed, for example, as shown in FIG. In FIG. 4, as an example, Monday, Tuesday, Wednesday, Thursday, and Friday are working days, Saturday and Sunday are non-working days, and Saturday and Sunday are weekends.

こうして演算手段3が出した判定結果は、ディスプレイ6に表示される。この表示により被験者は自らの就労日における疲労蓄積傾向、又は非就労日における疲労蓄積傾向若しくは活動量の増減傾向を知り、疲労の蓄積に注意することができる。また、自らの就労日における疲労蓄積傾向と非就労日における活動量の増減傾向のパターンを知ることにより、そのパターンに変化があった場合には、生活リズムが変化していることを知り、健康的な生活リズムの維持に注意することができる。   The determination result output by the calculation means 3 is displayed on the display 6. By this display, the subject can know the fatigue accumulation tendency on his / her working day, or the fatigue accumulation tendency on the non-working day or the increase / decrease tendency of the activity amount, and can pay attention to the accumulation of fatigue. In addition, by knowing the pattern of fatigue accumulation on one's working day and the trend of increase / decrease in activity on non-working days, if there is a change in the pattern, know that the lifestyle rhythm has changed, Attention to the maintenance of a healthy life rhythm.

演算手段3には、就労日数又は非就労日数ごとの平均歩行速度を算出する機能を持たせ、就労日数又は非就労日数ごとの平均歩行速度がディスプレイ6に表示されるようにしてもよい。例えば、上述のように、月曜、火曜、水曜、木曜、金曜が就労日で、土曜、日曜が非就労日の場合に、蓄積されたデータに基づいて、月曜(就労日数=1)だけの平均歩行速度である月曜平均歩行速度を算出すると共に、今週の月曜の平均歩行速度を算出し、双方を対比できるようにする。   The calculation means 3 may have a function of calculating an average walking speed for each working day or non-working day, and the average walking speed for each working day or non-working day may be displayed on the display 6. For example, as described above, when Monday, Tuesday, Wednesday, Thursday, and Friday are working days, and Saturday and Sunday are non-working days, the average of only Monday (the number of working days = 1) based on accumulated data The average walking speed on Monday, which is the walking speed, is calculated, and the average walking speed on Monday of this week is calculated so that both can be compared.

同様に、蓄積されたデータに基づいて、金曜(就労日数=5)だけの平均歩行速度である金曜平均歩行速度を算出すると共に、今週の金曜の平均歩行速度を算出し、双方を対比できるようにする。   Similarly, on the basis of the accumulated data, the average walking speed on Friday, which is the average walking speed only on Friday (working days = 5), is calculated, and the average walking speed on this Friday is calculated so that both can be compared. To.

この他、演算手段3に、全就労日及び全非就労日を合わせた平均歩行速度を算出する機能を持たせてもよい。これにより歩行速度変化による加齢や健康状態を推定することができる。   In addition, the calculation means 3 may have a function of calculating an average walking speed that is a combination of all working days and all non-working days. This makes it possible to estimate aging and health status due to changes in walking speed.

また、演算手段3と接続するデータ記憶部4に就労日数と一日平均歩行速度との相関係数r1の大小と、非就労日数と一日平均歩行速度との相関係数r2の大小との組み合わせから導かれる、週末疲労や週明け疲労の強さと、就労日や非就労日の過ごし方に関するアドバイスを多数、記憶させておき、そのアドバイスがディスプレイ6に表示されるようにしてもよい。   In addition, the data storage unit 4 connected to the calculation means 3 includes a correlation coefficient r1 between the working days and the daily average walking speed and a correlation coefficient r2 between the non-working days and the daily average walking speed. It is also possible to store a large number of advices regarding the strength of weekend fatigue and new-day fatigue derived from the combination and how to spend working days and non-working days, and the advice may be displayed on the display 6.

例えば、就労日数と一日平均歩行速度との相関係数r1が−1以上−0.7未満で、非就労日数と一日平均歩行速度との相関係数r2が−1以上−0.7未満の場合に、強い週末疲労傾向と、非就労日の活動量低下が見られるので、就労日の蓄積疲労による非就労日の活動量の低下に気をつけるようにとのアドバイスがディスプレイ6に表示されるようにする。   For example, the correlation coefficient r1 between the working days and the daily average walking speed is −1 or more and less than −0.7, and the correlation coefficient r2 between the non-working days and the daily average walking speed is −1 or more and −0.7. If there is less than 1, there will be a strong weekend fatigue tendency and a decrease in activity on non-working days, so the display 6 will give advice to watch out for a decrease in activity on non-working days due to accumulated fatigue on working days. To be displayed.

なお、このようなアドバイスは、疲労度判定装置1に通信手段を組み込み、外部のサーバーから受信できるようにしてもよい。   Such advice may be received from an external server by incorporating a communication means in the fatigue determination apparatus 1.

1 疲労度判定装置
2 加速度センサ
3 演算手段
4 データ記憶部
5 入力用ボタン
6 ディスプレイ
DESCRIPTION OF SYMBOLS 1 Fatigue degree determination apparatus 2 Acceleration sensor 3 Calculation means 4 Data storage part 5 Input button 6 Display

Claims (5)

加速度センサ及び疲労度を判定する演算手段を備えた携帯可能な疲労度判定装置であって、前記演算手段が、
加速度センサで検出される加速度データから日ごとの平均歩行速度である、一日平均歩行速度を算出する一日平均歩行速度算出機能、
周期的に繰り返される就労日と非就労日について、連続する就労日又は非就労日が入力されることにより、一日平均歩行速度を、該一日平均歩行速度が、連続する就労日又は非就労日の何日目のものであるかを表す就労日数又は非就労日数と関連づける機能、
就労日数又は非就労日数と一日平均歩行速度の相関係数を算出する機能、
前記相関係数に基づき、就労日における疲労蓄積傾向又は非就労日における疲労蓄積傾向を判定する疲労度判定機能を有する疲労度判定装置。
A portable fatigue level determination device including an acceleration sensor and a calculation level for determining fatigue level, wherein the calculation level is:
A daily average walking speed calculation function for calculating a daily average walking speed, which is an average walking speed for each day from acceleration data detected by an acceleration sensor,
For working days and non-working days that are repeated periodically, the daily average walking speed is input by inputting continuous working days or non-working days, and the daily average walking speed is the continuous working days or non-working days. The ability to correlate with the number of working days or non-working days representing the day of the day,
A function to calculate the correlation coefficient between the working days or non-working days and the daily average walking speed;
A fatigue level determination device having a fatigue level determination function for determining a fatigue accumulation tendency on a working day or a fatigue accumulation tendency on a non-working day based on the correlation coefficient.
疲労度判定機能が、相関係数の数値により就労日における疲労蓄積傾向又は非就労日における疲労蓄積傾向を複数段階で判定する請求項1記載の疲労度判定装置。   The fatigue degree determination apparatus according to claim 1, wherein the fatigue degree determination function determines a fatigue accumulation tendency on a working day or a fatigue accumulation tendency on a non-working day in a plurality of stages based on a numerical value of a correlation coefficient. 演算装置が、就労日数又は非就労日数と、一日平均歩行速度との関係図を出力する請求項1又は2記載の疲労度判定装置。   The fatigue degree determination apparatus according to claim 1 or 2, wherein the arithmetic device outputs a relationship diagram between the working days or the non-working days and the daily average walking speed. 演算装置が、就労日数又は非就労日数ごとの平均歩行速度を算出する請求項1〜3のいずれかに記載の疲労度判定装置。   The fatigue determination apparatus according to any one of claims 1 to 3, wherein the arithmetic device calculates an average walking speed for each working day or each non-working day. 演算装置が、全就労日及び全非就労日を合わせた平均歩行速度を算出する請求項1〜4のいずれかに記載の疲労度判定装置。   The fatigue degree determination apparatus according to any one of claims 1 to 4, wherein the arithmetic device calculates an average walking speed that combines all working days and all non-working days.
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