JP5988274B2 - Dynamic knee joint diagnosis device - Google Patents
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Description
本発明は、膝関節機能診断方法に関し、関節の機能を複合的に多方面から総合的に定量的に診断することができるシステムに関するものである。 The present invention relates to a knee joint function diagnosis method, and more particularly to a system capable of comprehensively and quantitatively diagnosing joint functions from various directions.
膝関節を調べる従来の方法としては、膝の角度を目視で測る方法が一般的であった。この例として例えば下記特許文献１がある。この技術では、人の膝関節の位置覚を検査するために、人の大腿と下腿の外側と内側に大腿支柱、下腿支柱が取り付けた支柱に大腿カフ、下腿カフを固定し、膝継ぎ手を軸心とする膝関節の角度を定量的に測定できるように工夫したものである。 As a conventional method for examining the knee joint, a method of visually measuring the knee angle has been generally used. An example of this is the following Patent Document 1. In this technology, in order to examine the position sense of a person's knee joint, the thigh strut is fixed to the outer and inner sides of the person's thigh and lower leg, the thigh cuff and the lower leg cuff are fixed to the post attached to the lower leg, and the knee joint is pivoted. It is devised so that the angle of the knee joint as a heart can be measured quantitatively.
また、超音波を利用して膝関節の回旋角度を測定する膝関節回旋角度計測装置が、下記特許文献２に記載されている。 A knee joint rotation angle measurement device that measures the rotation angle of a knee joint using ultrasonic waves is described in Patent Document 2 below.
ところが、膝関節は、単に膝の角度を目視で計測、或いは特許文献２の技術に提案されているように、体重を負荷しないで、角度のみのひとつのパラメータを提示し，診断することのみではフィードフォワード機能しか求められない。膝関節の本来の機能である身体の円滑な移動機能、すなわち円滑な姿勢制御機能すなわちフィードバック機能を調べることは極めて困難であった。 However, the knee joint simply measures the angle of the knee visually, or presents only one angle parameter and diagnoses it without loading the weight as proposed in the technique of Patent Document 2. Only the feedforward function is required. It has been extremely difficult to examine the smooth movement function of the body, that is, the smooth posture control function, that is, the feedback function, which is the original function of the knee joint.
そこで、本発明では、円滑な姿勢制御機能すなわちフィードバック機能を有するダイナミック膝関節複合診断装置を提供することにある。即ち、体重を負荷した起立位で膝の屈伸運動中の姿勢保持に中心的な役割をする頭位の変位計測と、膝関節の角度と、膝のゆれデータとの、相関を計測する。そして、体重負荷における運動中の膝の曲がり具合と運動具合と身体姿勢制御機能、すなわち身体のゆれとの相関を解析し、日常行動中の膝関節機能と、姿勢制御機能を推測する多方面からの総合的に診断する装置を提供することを目的とする。 Accordingly, the present invention is to provide a dynamic knee joint combined diagnosis device having a smooth posture control function, that is, a feedback function. That is, the correlation between the displacement measurement of the head position, which plays a central role in posture maintenance during knee flexion and extension in the standing position loaded with weight, the angle of the knee joint, and the knee swing data is measured. Analyzing the relationship between knee flexion and exercise status during body weight load and physical posture control functions, that is, body shake, from various aspects of estimating knee joint functions and posture control functions during daily behavior An object of the present invention is to provide a comprehensive diagnosis apparatus.
上記課題を解決する本発明の第一の観点に係るダイナミック膝関節複合診断装置は、頭部の３次元変位を計測する頭位変位感知器と、膝の３次元変位を計測する膝変位感知器と、膝の角度を計測する膝角度感知器と、前記頭位変位感知器、膝変位感知器、膝角度感知器からそれぞれ計測される情報を処理する情報処理装置とからなり、体重を負荷した起立位、及び膝の屈伸運動等時の、頭位の変位計測と、膝関節の角度と膝のゆれの計測情報を情報処理装置で処理し、膝関節を総合的に診断する。 A dynamic knee joint composite diagnostic apparatus according to a first aspect of the present invention that solves the above problems includes a head position displacement sensor that measures a three-dimensional displacement of the head and a knee displacement sensor that measures a three-dimensional displacement of the knee. And a knee angle sensor that measures the angle of the knee, and an information processing device that processes information measured from the head position sensor, the knee displacement sensor, and the knee angle sensor, respectively. The head position displacement measurement and the knee joint angle and knee swing measurement information during the standing position and the knee flexion / extension movement are processed by the information processing device, and the knee joint is diagnosed comprehensively.
またこの観点においては、限定されるわけではないが、更に、情報処理装置の結果を表示する表示装置、又は印字装置を具備することが好ましい。 Moreover, although it does not necessarily limit in this viewpoint, it is further preferable to provide the display apparatus or printing apparatus which displays the result of information processing apparatus.
またこの観点においては、限定されるわけではないが、更に、情報処理装置に処理アルゴリズムを常駐してなることを特徴とする。 Further, although not limited in this point of view, the processing algorithm is resident in the information processing apparatus.
本発明は、第一の手段として、頭部の３次元変位を計測する頭位変位感知器、第二の手段として膝のゆれ感知計測する頭位変位感知器、第三の手段として膝の角度を計測する膝角度感知器、第四の手段としてこれらの装置を統合する情報処理装置からそれぞれ構成している。 The present invention provides, as a first means, a head-position displacement sensor that measures three-dimensional displacement of the head, as a second means, a head-position displacement sensor that senses and measures knee vibration, and as a third means, a knee angle. A knee angle sensor for measuring the above and an information processing device integrating these devices as a fourth means.
これらの手段により、まず、第一の手段である頭位変位感知器で、頭部の３次元変位を計測する頭変位感知器地球重力方向に抗して起立したときに頭部の前後変位と左右変位と鉛直方向の上下変位の３次元を測定し、この３次元の情報を取得する。そして、第二の手段である頭位変位感知器で、起立時、或いは屈曲時等の地球の重力方向に沿った鉛直方向と、前後方向と左右方向の３次元の膝情報を感知する位置情報を検知するものである。また第三の手段として膝の角度を計測する膝角度感知器で、膝関節の角度情報を取得でき、前記第一、第二の手段で得た情報を，第四の手段の情報処理装置で処理し膝の正確な情報を正確に取得することが出来るように作用出来、以上の手段により、膝のダイナミック機能解析を、姿勢制御というフィードバックループの観点から、総合的診断が行える膝関節総合診断装置提供することができる。 By these means, first, the head displacement sensor as the first means, the head displacement sensor for measuring the three-dimensional displacement of the head, and the head longitudinal displacement when standing up against the direction of the earth gravity. The three-dimensional information of the horizontal displacement and the vertical displacement in the vertical direction is measured, and this three-dimensional information is acquired. Then, positional information for detecting three-dimensional knee information in the vertical direction along the gravity direction of the earth, such as when standing or bending, and the front-rear direction and the left-right direction, with the head displacement sensor as the second means. Is detected. As a third means, a knee angle sensor that measures the angle of the knee can obtain knee joint angle information, and the information obtained by the first and second means can be obtained by the information processing apparatus of the fourth means. Knee joint comprehensive diagnosis that can be processed and can accurately acquire knee information, and that can perform comprehensive diagnosis from the viewpoint of feedback loop of posture control by analyzing the dynamic function of the knee by the above means Device can be provided.
本発明によれば、体重を負荷した起立位で膝の屈伸運動中の姿勢保持に中心的な役割を
する頭位の変位計測と、膝関節の角度と膝のゆれデータとの相関を計測するため、体重負
荷における運動中の膝の曲がり具合と運動具合と身体姿勢制御機能すなわち身体のゆれと
の相関を解析することが出来、日常行動中の膝関節機能と姿勢制御機能を推測する多方面
から姿勢制御におけるダイナミック膝関節機能をヒトの生活行動面における日常行動に有
機的に直結した診断ができる。
According to the present invention, the displacement measurement of the head position, which plays a central role in posture maintenance during knee flexion and extension in a standing position with a weight applied, and the correlation between the knee joint angle and the knee swing data are measured. Therefore, it is possible to analyze the correlation between knee flexion and exercise status during exercise under body weight load and body posture control function, that is, body shake, and to predict the knee joint function and posture control function during daily behavior Therefore, it is possible to diagnose the dynamic knee joint function in posture control organically directly connected to daily behavior in human life behavior.
以下、本発明の実施の形態について図面をもとに説明するが、本発明は多くの異なる形態による実施が可能であり、以下に示す実施形態の例示にのみ限定されるものではない。 DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention can be implemented in many different forms, and is not limited only to the embodiments illustrated below.
図１は本実施形態に係るダイナミック膝関節複合診断装置の概略図を示す。本図で示されるように、本実施の形態に係るダイナミック膝関節複合診断装置は、頭部変位感知器１と、膝位置変位感知器２と、膝角度変位感知器３とから信号入力をうけとり、この信号情報を処理する情報処理装置４とからなる。以下、これらについて詳述する。 FIG. 1 is a schematic diagram of a combined dynamic knee diagnosis apparatus according to the present embodiment. As shown in the figure, the dynamic knee joint composite diagnosis apparatus according to the present embodiment receives a signal input from the head displacement sensor 1, the knee position displacement sensor 2, and the knee angle displacement sensor 3. And the information processing device 4 for processing the signal information. These will be described in detail below.
＜頭部変位感知器１＞
頭部変位感知器１は、診断を行おうとする者（以下単に「診断対象者」という。）の頭部に設け、起立したときに頭部の前後変位と左右変位と鉛直方向の上下変位の３次元データを測定するものである。
<Head displacement sensor 1>
The head displacement sensor 1 is provided on the head of a person who wants to make a diagnosis (hereinafter, simply referred to as “diagnostic person”), and when the head is standing, the head is displaced back and forth, left and right, and vertically up and down. It measures 3D data.
頭部変位感知器１は、変位センサーを、帽子に装着した帽子タイプ、変位センサーをメガネに装着したメガネタイプ、或いは変位センサーを、カチューシャに装着したカチューシャタイプとして頭髪に固定するタイプとすることが考えられる。また、このようなものを使用せずに，直に頭皮に絆創膏、両面テープなどにして装着するものであってもかまわない。 The head displacement sensor 1 may be a type in which the displacement sensor is fixed to the hair as a hat type in which the displacement sensor is attached to the hat, a glasses type in which the displacement sensor is attached to the glasses, or a headband type in which the displacement sensor is attached to the headband. Conceivable. In addition, it is also possible to use a bandage or double-sided tape directly on the scalp without using such a thing.
なお、変位センサーとしては、頭部の変位を感知することができる限りにおいて限定されず、公知のものを採用することができ、例えばピエゾ抵抗素子を有する３軸方向での加速度検出が可能な加速度センサーが好ましい。 The displacement sensor is not limited as long as the displacement of the head can be sensed, and a known sensor can be adopted, for example, an acceleration capable of detecting acceleration in a triaxial direction having a piezoresistive element. A sensor is preferred.
＜膝位置変位感知器２＞
膝位置変位感知器２は、膝の位置を測定する為のもので、頭部変位感知器１と同様に変位センサーを使用し、診断対象者の膝部の素肌に絆創膏、両面テープなど適宜手段で設けるが、頭部変位感知器１と同様に変位センサーを装着したバンドタイプを用い、衣類の上に装着しても良い。
<Knee position displacement sensor 2>
The knee position displacement sensor 2 is for measuring the position of the knee, and uses a displacement sensor in the same manner as the head displacement sensor 1, and uses appropriate means such as adhesive bandages and double-sided tape on the skin of the knee of the subject to be diagnosed. However, as with the head displacement sensor 1, a band type equipped with a displacement sensor may be used and worn on clothing.
＜膝角度変位感知器３＞
膝角度変位感知器３は、起立時或いは起立位で膝の屈伸運動中の膝角度変位を測定するもので、図に示すように膝を挟んで設ける。具体的には、変位センサーを２個設け、それぞれのセンサーの変位量を計測して測定する。この膝角度変位感知器３は、膝位置変位感知器２と同様に診断対象者の膝部の素肌に絆創膏、両面テープなど適宜手段で設けるが、頭部変位感知器１と同様に変位センサーを装着したバンドタイプを用い、衣類の上に装着しても良い。なお、上記した頭部変位感知器１、膝位置変位感知器２、及び膝角度変位感知器３で得た測定信号の情報を処理する情報処理装置４との信号の信号転送は、有線でも無線等の適宜手段で行う。
<Knee angle displacement sensor 3>
The knee angle displacement sensor 3 measures the knee angle displacement during the flexion / extension motion of the knee when standing or standing, and is provided with the knee sandwiched as shown in the figure. Specifically, two displacement sensors are provided, and the displacement amount of each sensor is measured and measured. This knee angle displacement sensor 3 is provided with appropriate means such as adhesive bandage and double-sided tape on the skin of the knee of the person to be diagnosed in the same manner as the knee position displacement sensor 2, but a displacement sensor is provided as in the head displacement sensor 1. A worn band type may be used and worn on clothing. Note that the signal transfer with the information processing device 4 that processes the information of the measurement signals obtained by the head displacement sensor 1, the knee position displacement sensor 2, and the knee angle displacement sensor 3 described above is wired or wireless. Etc., as appropriate.
＜情報処理装置４＞
情報処理装置４は、上記した頭部変位感知器１と、膝位置変位感知器２と、膝角度変位感知器３とから得られた信号入力を処理する装置であり、図２に示すように、オペレーションシステム、診断のためのプログラム、診断の基準となるデータベース及び診断対象者の測定結果を格納する記憶装置４０と、演算を行うＣＰＵ４１と、記録媒体として機能し、高速処理及びリアルタイム報告を可能とするＲＡＭ４２とで構成し、処理アルゴリズムを用いて処理を行う。
<Information processing apparatus 4>
The information processing device 4 is a device that processes the signal input obtained from the head displacement sensor 1, the knee position displacement sensor 2, and the knee angle displacement sensor 3 as shown in FIG. , Operation system, diagnostic program, database serving as a basis for diagnosis and storage device 40 for storing the measurement results of the person to be diagnosed, CPU 41 for performing computation, and functioning as a recording medium, enabling high-speed processing and real-time reporting The RAM 42 performs processing using a processing algorithm.
また、この情報処理装置４には、図２、３に示すように、情報処理装置４の処理データを表示する表示装置５と、診断対象者の情報入力を受け付ける入力装置６と、印字装置７とが設けられており、これら情報処理装置４は、一体化的に構成することもできる。 As shown in FIGS. 2 and 3, the information processing device 4 includes a display device 5 that displays processing data of the information processing device 4, an input device 6 that receives information input of a diagnosis target person, and a printing device 7. These information processing devices 4 can also be configured in an integrated manner.
ここで、表示装置５は、情報処理装置４で処理したデータを表示するものであるが、診断を施行するもの（以下単に「診断施行者」という。）及び診断対象者に、様々な指示を表示することが出来る。例えば、この様々な指示としては、診断対象者への運動の指示が該当する。表示装置５の具体例としては通常市販されているディスプレイ装置を用いることができる。情報処理装置４は表示装置５に表示と同時に音声ガイド機能を兼ね備えることも望ましい。 Here, the display device 5 displays the data processed by the information processing device 4, but gives various instructions to a person who performs diagnosis (hereinafter simply referred to as “diagnosis enforcer”) and a person to be diagnosed. Can be displayed. For example, the various instructions correspond to instructions for exercise to the diagnosis subject. As a specific example of the display device 5, a commercially available display device can be used. It is also desirable that the information processing device 4 has a voice guide function simultaneously with the display on the display device 5.
入力装置６としては、検査されるヒトの属性などの情報を入力するキーボード、またはカードリーダなどの情報入力装置を用いることが出来る。 As the input device 6, an information input device such as a keyboard for inputting information such as a human attribute to be inspected or a card reader can be used.
印字装置７は、情報処理装置４に接続されており、診断の結果を紙などの媒体に印刷して表示を行うものである。この印字装置としては市販されているプリンタが広く適用可能である。また、印字装置７は、表示装置５による表示のみで十分と判断されるような場合には、省略可能である。なお、表示装置５には、印字装置７を併せて設けても良いことは言うまでもない。 The printing device 7 is connected to the information processing device 4 and prints and displays the result of diagnosis on a medium such as paper. A commercially available printer can be widely applied as this printing apparatus. Further, the printing device 7 can be omitted when it is determined that only the display by the display device 5 is sufficient. Needless to say, the display device 5 may be provided with the printing device 7.
次に、本装置を用いた操作手順について図３のフローを用いて説明する。 Next, an operation procedure using this apparatus will be described with reference to the flowchart of FIG.
まず、診断対象者に所定の位置に頭部変位感知器１と、膝位置変位感知器２と、膝角度変位感知器３をセットし、診断の準備をすると共に、入力装置６で診断対象者の情報等の属性を入力する（ステップ０１、以下「Ｓ０１」という。）。次いで、前記各部位からの測定データの入力をする（Ｓ０２）。 First, the head displacement sensor 1, the knee position displacement sensor 2, and the knee angle displacement sensor 3 are set at a predetermined position for the person to be diagnosed. Are input (step 01, hereinafter referred to as “S01”). Next, measurement data from each of the parts is input (S02).
そして、前記したステップＳ０２で得た数値を用いて，従来の蓄積したデータと比較して、膝の状態の診断を行う（Ｓ０３）。診断を行った後、その結果の数値と障害部位と程度を推測して表示部（Ｓ０４）に表示すると共に、印字装置５より紙などの媒体に印字し（Ｓ０５）、結果に応じて再度診断を繰り返すか、診断を終了する。 Then, using the numerical value obtained in step S02 described above, the knee condition is diagnosed in comparison with the conventional accumulated data (S03). After performing the diagnosis, the numerical value, the faulty part, and the degree of the result are estimated and displayed on the display unit (S04), and printed on a medium such as paper from the printing device 5 (S05), and the diagnosis is performed again according to the result. Repeat or end the diagnosis.
診断施行者及び診断対象者はこの結果を参照することで診断結果を保持することができ、以後の治療等に役立てることができる。またこの際、各診断処理における結果についても後の治療診断に役立てるべく情報処理装置６内の記憶装置４０に格納しておくことが望ましい。 The person who performed the diagnosis and the person to be diagnosed can refer to this result and hold the diagnosis result, which can be used for the subsequent treatment. At this time, it is desirable to store the results of each diagnosis process in the storage device 40 in the information processing apparatus 6 so as to be useful for later treatment diagnosis.
ここで、診断対象者に所定の位置に頭部変位感知器１と、膝位置変位感知器２と、膝角度変位感知器３の具体的な診断の測定手順について図４のフローを用いて説明する。 Here, a specific diagnosis measurement procedure of the head displacement sensor 1, the knee position displacement sensor 2, and the knee angle displacement sensor 3 at a predetermined position is explained to the person to be diagnosed with reference to the flow of FIG. To do.
本測定は、後述する各ステップごとに頭部変位感知器１、膝位置変位感知器２及び膝角度変位感知器３のそれぞれの測定値を測定し、情報処理装置４に測定値を送る。 In this measurement, the measured values of the head displacement sensor 1, the knee position displacement sensor 2, and the knee angle displacement sensor 3 are measured at each step described later, and the measured values are sent to the information processing apparatus 4.
まず静止起立を一定時間保持することを指示する（Ｓ１１）。静止起立保持時間はたとえば３０秒以上１分以内が好ましい。 First, an instruction is given to hold the stationary standing for a certain time (S11). The stationary standing time is preferably, for example, 30 seconds or more and 1 minute or less.
次に連続して膝関節を屈曲指示する（Ｓ１２）。曲げ具合は９０度くらいが好ましいが、膝疾患の障害診断対象者や高齢な診断対象者は本人が可能なだけ屈曲してもらうだけでもよい。 Next, the knee joint is instructed to flex continuously (S12). The degree of bending is preferably about 90 degrees, but a person who is diagnosed with a disorder of knee disease or an elderly person who is diagnosed may have the person bend as much as possible.
次に膝関節をその位置で保持指示する（Ｓ１３）。 Next, an instruction to hold the knee joint at that position is given (S13).
次に膝伸展を指示し（Ｓ１４）、膝関節伸展のまますなわち静止起立位を保持指示する（Ｓ１５）。 Next, the knee extension is instructed (S14), and the knee joint extension is instructed, that is, the stationary standing position is instructed (S15).
ここで、Ｓ１５はＳ１１と等価の指示でありこのＳ１２からＳ１５までの一連の動作を連続するよう指示する。このときマイペースで一定回数を行う指示と、出来るだけ早く連続運動を行う指示と、個々のステップでの保持動作を一定時間維持する指示など多種類の指示することがこのましい。たとえばマイペース指示とできるだけ全速ペースとできるだけゆっくりペースが好ましい。この中のできるだけゆっくりペースの極端な膝関節屈曲位保持も好ましい。 Here, S15 is an instruction equivalent to S11, and instructs to continue the series of operations from S12 to S15. At this time, it is preferable to give various kinds of instructions such as an instruction to perform a certain number of times at a own pace, an instruction to perform continuous motion as soon as possible, and an instruction to maintain the holding operation in each step for a certain period of time. For example, my pace instruction, full speed pace as much as possible, and slow pace as much as possible are preferable. Of these, it is also preferable to keep the knee joint flexion at an extremely slow pace as much as possible.
以上、本実施形態によると、ダイナミック膝関節複合診断装置は、客観的に数値として定量的に膝の状態を客観的に診断できるダイナミック膝関節複合診断装置を提供することが可能となる。 As described above, according to the present embodiment, the dynamic knee joint composite diagnosis device can provide a dynamic knee joint composite diagnosis device that can objectively diagnose the knee state quantitatively as an objective numerical value.
本発明の１実施例の実測例と解析方法を示す（図５〜８参照）。図５は実測例の一例を３段のグラフで示している。 An actual measurement example and an analysis method of one embodiment of the present invention are shown (see FIGS. 5 to 8). FIG. 5 shows an example of an actual measurement with a three-stage graph.
上段の３プロットは頭位変位感知器からの前後方向（中太線）と左右方向（細い線）と鉛直方向（太い線）の３５秒間の加速度変化を示している。縦軸は加速度をＧであらわし、横軸は１０ミリ秒ごとに表している。 The upper three plots show the acceleration changes for 35 seconds in the front-rear direction (middle line), left-right direction (thin line), and vertical direction (thick line) from the head position displacement sensor. The vertical axis represents acceleration as G, and the horizontal axis represents every 10 milliseconds.
中段のグラフは膝の変位感知器からの前後方向（太い線）と左右方向（細い線）と、鉛直方向（中太線）の加速度変化を示している。 The middle graph shows changes in acceleration in the front-rear direction (thick line), left-right direction (thin line), and vertical direction (middle thick line) from the knee displacement sensor.
下段は膝関節の膝角度感知器からの角度変化を示している。なお、３段のグラフいずれも共通に、横軸４００から２１００まではマイペースで膝屈伸を指示しており、横軸２１００から２９００までは全速の膝の屈伸運動を指示し、横軸２４００から３４００までは膝屈曲のままの保持を指示している。 The lower row shows the angle change from the knee angle sensor of the knee joint. In all three graphs, the horizontal axes 400 to 2100 indicate knee flexion / extension at the own pace, the horizontal axes 2100 to 2900 indicate full speed knee flexion / extension movement, and the horizontal axes 2400 to 3400. Until it is instructed to keep the knee flexed.
次に解析結果について図６、７、８で示す。図６は膝の角度変化と頭位変位変化の相関係数を、マイペース、全速、屈曲保持の順に前後方向、左右方向、鉛直方向別に示している。マイペースでは相関係数０．５９と鉛直方向にもっとも相関が強いことが確認できた。一方、全速では相関係数はきわめて低い結果であった。なお屈曲保持では頭位前後方向のゆれと鉛直方向のゆれとの相関が大きいことが確認できた。 Next, the analysis results are shown in FIGS. FIG. 6 shows the correlation coefficient between the knee angle change and the head position change change for each of the front-rear direction, left-right direction, and vertical direction in the order of my pace, full speed, and bending. At my pace, it was confirmed that the correlation coefficient was 0.59 and the correlation was strongest in the vertical direction. On the other hand, the correlation coefficient was very low at all speeds. It was confirmed that there was a large correlation between the fluctuation in the longitudinal direction of the head position and the fluctuation in the vertical direction in the bending holding.
図７は膝の角度変化と膝変位変化の相関係数を、マイペース、全速、屈曲保持の順に前後方向、左右方向、鉛直方向別に示している。マイペースでは相関係数０．５９と鉛直方向にもっとも相関が強いことが確認できた。一方、全速では相関係数はきわめて低い結果であった。なお屈曲保持では頭位前後方向のゆれと鉛直方向のゆれとの相関が大きいことが確認できた。 FIG. 7 shows the correlation coefficient between the knee angle change and the knee displacement change for each of the front and rear directions, the left and right directions, and the vertical direction in the order of my pace, full speed, and bending. At my pace, it was confirmed that the correlation coefficient was 0.59 and the correlation was strongest in the vertical direction. On the other hand, the correlation coefficient was very low at all speeds. It was confirmed that there was a large correlation between the fluctuation in the longitudinal direction of the head position and the fluctuation in the vertical direction in the bending holding.
また図８は頭位変位変化と膝変位変化の相関係数を、マイペース、全速、屈曲保持の順に前後方向、左右方向、鉛直方向別に示している。マイペースでは相関係数０．５９と鉛直方向にもっとも相関が強いことが確認できた。一方全速では相関係数はきわめて低い結果であった。なお屈曲保持では頭位前後方向のゆれと鉛直方向のゆれとの相関が大きいことが確認できた。 FIG. 8 shows the correlation coefficient between the head position displacement change and the knee displacement change for each of the front-rear direction, the left-right direction, and the vertical direction in the order of my pace, full speed, and bending. At my pace, it was confirmed that the correlation coefficient was 0.59 and the correlation was strongest in the vertical direction. On the other hand, the correlation coefficient was very low at all speeds. It was confirmed that there was a large correlation between the fluctuation in the longitudinal direction of the head position and the fluctuation in the vertical direction in the bending holding.
ここでは相関係数のみについて説明したが、頭位変位センサー情報と膝変位センサー情報と膝角度センサー情報の間における振動の振幅変数・周波数変数・位相変数を解析するフーリエ解析や伝達関数やコヒーレンス解析も好ましい。 Although only the correlation coefficient is described here, Fourier analysis, transfer function, and coherence analysis that analyze amplitude, frequency, and phase variables of vibration between head position sensor information, knee displacement sensor information, and knee angle sensor information Is also preferable.
本実施形態に係るダイナミック膝関節複合診断装置によれば、体重を負荷した起立位で膝の屈伸運動中の姿勢保持に中心的な役割をする頭位の変位計測と、膝関節の角度と膝のゆれデータとの相関を計測するため、体重負荷における運動中の膝の曲がり具合と運動具合と身体姿勢制御機能すなわち身体のゆれとの相関を解析することができ、日常行動中の膝関節機能と姿勢制御機能を推測する多方面から姿勢制御におけるダイナミック膝関節機能をヒトの生活行動面における日常行動に有機的に直結した診断ができる。 According to the combined dynamic knee joint diagnosis apparatus according to the present embodiment, the displacement measurement of the head position that plays a central role in the posture maintenance during the flexion and extension of the knee in the standing position loaded with the weight, the angle of the knee joint, and the knee In order to measure the correlation with the movement data of the knee, it is possible to analyze the correlation between the knee bend during exercise and the exercise condition and the body posture control function, that is, the movement of the body during weight load, and the knee joint function during daily behavior It is possible to make a diagnosis that organically directly links the dynamic knee joint function in posture control to daily behavior in human life behavior from various directions to guess the posture control function.
本発明は、膝関節機能診断方法に関し、関節の機能を複合的に多方面から総合的に定量的に診断する膝関節複合診断装置に利用することが出来る。 The present invention relates to a method for diagnosing knee joint function, and can be used for a knee joint composite diagnostic apparatus that comprehensively and quantitatively diagnoses joint functions from various directions.
１…頭位変位感知器、２…膝変位感知器、３…膝角度感知器、４…情報処理装置、５…表示装置、６…入力装置、７…印字装置
DESCRIPTION OF SYMBOLS 1 ... Head position displacement sensor, 2 ... Knee displacement sensor, 3 ... Knee angle sensor, 4 ... Information processing apparatus, 5 ... Display apparatus, 6 ... Input apparatus, 7 ... Printing apparatus
Claims (3)
膝の３次元変位を計測する膝変位感知器と、
膝の角度を計測する膝角度感知器と、
前記頭位変位感知器、膝変位感知器、膝角度感知器からそれぞれ計測される情報を処理する情報処理装置と、
体重を負荷した起立位及び膝の屈伸運動時における、膝の変位計測と、膝関節の角度と膝のゆれの計測情報を情報処理装置で処理し、膝の変位計測及び膝の角度と膝のゆれの計測情報の相関係数を求めることを特徴とするダイナミック膝関節複合診断装置。 A head displacement sensor for measuring the three-dimensional displacement of the head;
A knee displacement sensor for measuring the three-dimensional displacement of the knee;
A knee angle sensor that measures the angle of the knee;
An information processing apparatus for processing information measured from the head position displacement sensor, knee displacement sensor, and knee angle sensor ;
During bending movements of the upright position及 beauty knees loaded with weight, and displacement measurement of the knee, the measurement information of the angle and knee swing of the knee joint is treated by an information processing apparatus, and the angle of displacement measurement and knee of the knee A dynamic knee joint combined diagnosis device characterized by obtaining a correlation coefficient of measurement information of knee swing .
The dynamic knee joint diagnosis apparatus according to claim 2, wherein a processing algorithm is resident in the information processing apparatus.
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