EP0993845B1 - Process and system for monitoring the posture of the user of a training device - Google Patents

Process and system for monitoring the posture of the user of a training device Download PDF

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Publication number
EP0993845B1
EP0993845B1 EP19990119383 EP99119383A EP0993845B1 EP 0993845 B1 EP0993845 B1 EP 0993845B1 EP 19990119383 EP19990119383 EP 19990119383 EP 99119383 A EP99119383 A EP 99119383A EP 0993845 B1 EP0993845 B1 EP 0993845B1
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EP
European Patent Office
Prior art keywords
user
characterised
training apparatus
use
sensor
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EP19990119383
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German (de)
French (fr)
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EP0993845A2 (en
EP0993845A3 (en
Inventor
Klaus Dipl.-Phys. Abraham-Fuchs
Thomas Dr. Birkhölzer
Kai-Uwe Dr. Schmidt
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Siemens AG
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Siemens AG
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Priority to DE1998146982 priority Critical patent/DE19846982C2/en
Priority to DE19846982 priority
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Publication of EP0993845A2 publication Critical patent/EP0993845A2/en
Publication of EP0993845A3 publication Critical patent/EP0993845A3/en
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00Exercising apparatus specially adapted for particular parts of the body
    • A63B23/02Exercising apparatus specially adapted for particular parts of the body for the abdomen, the spinal column or the torso muscles related to shoulders (e.g. chest muscles)
    • A63B23/0244Exercising apparatus specially adapted for particular parts of the body for the abdomen, the spinal column or the torso muscles related to shoulders (e.g. chest muscles) with signalling or indicating means, e.g. of incorrect posture, for deep-breathing exercises
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0003Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
    • A63B24/0006Computerised comparison for qualitative assessment of motion sequences or the course of a movement
    • A63B2024/0012Comparing movements or motion sequences with a registered reference
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/06Training appliances or apparatus for special sports for rowing or sculling
    • A63B2069/064Training appliances or apparatus for special sports for rowing or sculling with pivoting handlebars
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/0054Features for injury prevention on an apparatus, e.g. shock absorbers
    • A63B2071/0072Limiting the applied force, torque, movement or speed
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/0054Features for injury prevention on an apparatus, e.g. shock absorbers
    • A63B2071/0081Stopping the operation of the apparatus
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B2071/0655Tactile feedback
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/04Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
    • A63B23/0405Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs involving a bending of the knee and hip joints simultaneously
    • A63B23/0417Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs involving a bending of the knee and hip joints simultaneously with guided foot supports moving parallel to the body-symmetrical-plane by translation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S482/00Exercise devices
    • Y10S482/901Exercise devices having computer circuitry

Description

Die vorliegende Erfindung betrifft ein Verfahren sowie ein entsprechendes System zum Überwachen der Haltung eines Benutzers an einem Trainingsgerät, um sicherzustellen, dass der Benutzer den gewünschten Trainingseffekt erzielen kann. The present invention relates to a method and a corresponding system for monitoring the posture of a user at a training apparatus, to ensure that the user can achieve the desired training effect.

An Trainingsgeräten, wie z. Of exercise equipment such. B. Fitness- oder Kraftgeräten, müssen gezielt bestimmte Bewegungen durchgeführt werden, um den gewünschten Trainingseffekt zu erzielen. B. fitness or weight machines certain movements must be carried out specifically in order to achieve the desired training effect. Führt der jeweilige Benutzer die Bewegung anders oder in einer falschen Körperhaltung aus, ist nicht nur der gewünschte Trainingseffekt gefährdet, sondern es können durch eine Überbeanspruchung von Gelenken, Sehnen, Bändern oder Muskeln sogar schwerwiegende Schäden entstehen. the respective user guides the movement of different or in a wrong posture, not only the desired training effect is at risk, but it can even serious damage is caused by an overuse of joints, tendons, ligaments or muscles.

Um dieses Problem zu beheben, werden Benutzer von Trainingsgeräten von dem Personal des Fitnessstudios in die Benutzung des jeweiligen Trainingsgeräts eingewiesen. To resolve this problem, users of exercise equipment are trained by the staff of the health club in the use of the respective training tool. Dies-ist jedoch sehr zeit- und personalaufwendig. However, this is very time consuming and labor-intensive. Des weiteren ist dadurch nicht gewährleistet, dass der Benutzer tatsächlich die jeweilige Trainingsübung richtig ausführt. Further, this does not guarantee that the user actually carries out the respective training exercise properly. Darüber hinaus ist bekannt, die zuvor genannten falschen Bewegungen an den Trainingsgeräten dadurch zu vermeiden, dass die jeweilige Bewegung durch entsprechende mit dem Trainingsgerät gekoppelte mechanische Konstruktionen sehr genau geführt wird. It is also known to avoid the wrong moves on the training equipment mentioned above characterized in that the respective motion is performed very accurately by corresponding coupled to the training device mechanical designs. Diese mechanischen Konstruktionen sind beispielsweise derart aufgebaut, dass im Extremfall alle Bewegungen, die nicht in die gewünschte Bewegungsrichtung gerichtet sind, verhindert werden. These mechanical constructions, for example, constructed such that, in extreme cases to prevent any movements that are not directed in the desired direction. Zu diesem Zweck sind jedoch mechanisch sehr aufwendige Konstruktionen erforderlich. To this end, however, mechanically very complex designs are required.

Außerdem ist es aus der EP 0 700 694 A1 bekannt, ein Trainingsgerät mit einem Sensor zu versehen, der ein kontrolliertes und dosiertes Training sowie eine Diagnose der Fähigkeiten des menschlichen Bewegungsapparates ermöglicht, indem die Ausgangsdaten des Sensors mittels eines Rechners ausgewertet werden, der dem Benutzer des Trainingsgerätes simultan mit der momentanen Bewegung eine aus den Ausgangssignalen des Sensors abgeleitete Größe anzeigt. It is also known from EP 0700694 A1 to provide a training device with a sensor that allows a controlled and dosed training, and a diagnosis of the capabilities of the human musculoskeletal system, by the output data of the sensor are evaluated by a computer, the user of the the training device simultaneously displays a derived from the output signals of the sensor size with the current movement.

Aus der WO 94/26359 A1 ist es bekannt, die Bewegung eines Gelenks im Zuge von der Rehabilitation dienenden, unabhängig von einem Trainingsgerät stattfindenden gymnastischen Übungen eines Patienten aufzuzeichnen und auszuwerten, und zwar mittels eines an dem Patienten angebrachten Sensors, wobei lediglich die Anzahl und das Ausmaß der Bewegungen registriert werden. From WO 94/26359 A1 it is known to serving the movement of a joint in the course of rehabilitation, recording taking place independent of a training device gymnastic exercises of a patient and to evaluate, by means of a attached to the patient sensor, only the number and the extent of the movements are registered.

Ebenfalls unabhängig von einem Trainingsgerät ist es aus der DE 195 22 958 A1 bekannt, körpereigene physikalische Werte eines Probanden über Sensoren aufzunehmen und die entsprechenden Ausgangssignale in durch den Probanden wahrnehmbare Musik umzuwandeln. it is also independent of a training device known from DE 195 22 958 A1, take body's physical values ​​of a subject by means of sensors and convert the corresponding output signals into perceptible by the subject music.

Außerdem ist es aus der DE 39.33 999 A1 bekannt, ein Laufbandgerät zur körperlichen Belastung eines Probanden hinsichtlich der Geschwindigkeit des Bandes zu steuern, indem die Position eines Probanden auf dem Laufband mittels Sensoren erfasst wird und je nach Position des Probanden auf dem Laufband die Geschwindigkeit des Laufbandes erhöht oder verringert wird. It is also known from DE 39.33 999 A1, to control a treadmill apparatus for physical burden of a test subject with regard to the speed of the tape by the position of a subject is detected on the treadmill means of sensors and, depending on the position of the test person on the treadmill, the speed of treadmill is increased or decreased.

Dokument US 4,730,625 offenbart ein Kleidungsstück, welches vom Benutzer am Oberkörper getragen wird und welches den Rücken des Benutzers bedeckt. Document US 4,730,625 discloses an article of clothing worn by the user on the upper body and which covers the user's back. Auf der Rückseite des Kleidungsstücks sind zwei Dehnmessstreifen sowie ein elektronischer Schaltkreis zur Auswertung der von den Dehnmessstreifen übermittelten Daten angebracht. On the back of the garment two strain gauges and an electronic circuit for evaluating the data provided by the strain gauges are attached. Durch die Dehnmessstreifen kann eine Veränderung in der Haltung des Benutzers registriert werden. By the strain gauge a change in the posture of the user can be registered. Der elektronische Schaltkreis wertet die Daten aus und gibt ein Warnsignal aus, wenn die gemessene Haltung des Benutzers von einem Sollwert, das heißt von einer Idealhaltung, um ein bestimmtes Maß abweicht. The electronic circuit evaluates the data and outputs a warning signal when the measured position of the user from a set value, that is, from an ideal posture to deviate a certain level.

In Dokument US 4,940,063 ist eine Vorrichtung zum Messen von Winkelabweichungen offenbart. In document US 4,940,063 a device for measuring angular deviations is disclosed. Die Vorrichtung umfasst hierfür eine Spiralfeder, in der sich ein Draht befindet. The apparatus therefore comprises a helical spring in which a wire is located. Der Draht ist an einer Seite fest fixiert und an der anderen Seite mit einem Messgerät verbunden. The wire is firmly fixed to one side and connected on the other side with a meter. Wenn die Spiralfeder abgewinkelt wird, verlängert sich ihre Außenseite, und damit wird der Draht innerhalb der Spiralfeder verschoben. When the coil spring is bent, is extended outside thereof, and thus the wire within the coil spring is moved. Das Messgerät kann daraus den Grad der Winkelveränderung bestimmen und ein Warnsignal ausgeben, wenn die Winkelveränderung einen bestimmten vorgegebenen Wert über- oder unterschreitet. The meter can determine therefrom the degree of angle change, and outputting a warning signal when the angle change exceeds a certain predetermined value or less. Durch Anbringen der Vorrichtung an einem Benutzer, kann das Abwinkeln bestimmter Körperteile gemessen und kontrolliert werden. By attaching the device to a user, the angling of specific body parts can be measured and controlled.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren sowie ein entsprechendes System vorzuschlagen, mit dessen Hilfe auf relativ einfache Art und Weise zuverlässig die Haltung des Benutzers während einer Trainingsübung an einem Trainingsgerät überwacht werden kann, um somit Schäden durch Überbeanspruchung von Gelenken, Sehnen, Bändern oder Muskeln vorzubeugen und den gewünschten Trainingseffekt erzielen zu können. The present invention therefore has for its object to propose a method and a corresponding system by means of which in a relatively simple manner, the posture of the user during a training exercise in a training device can reliably be monitored so as to damage caused by overuse of joints, tendons prevent bands or muscles and to achieve the desired training effect.

Diese Aufgabe wird gemäß der vorliegenden Erfindung durch ein Verfahren mit den Merkmalen des Anspruches 1 bzw. ein System mit den Merkmalen des Anspruches 14 gelöst. This object is achieved according to the present invention by a method having the features of claim 1 and a system having the features of claim fourteenth Die Unteransprüche beschreiben jeweils bevorzugte und vorteilhafte Ausführungsformen der vorliegenden Erfindung, die ihrerseits zu einer möglichst genauen Überwachung der Haltung des Benutzers an dem Trainingsgerät beitragen. The subclaims each describe preferred and advantageous embodiments, which in turn contribute to the most precise monitoring of the position of the user of the exercise device of the present invention.

Durch die erfindungsgemäße Lösung wird die zuvor beschriebene mechanische Bewegungsführung des Benutzers durch eine "virtuelle Bewegungsführung" ersetzt. Due to the inventive solution, the above-described mechanical movement direction of the user is replaced by a "virtual motion control". Mit Hilfe von Sensoren wird die Bewegung des Benutzers während der Benutzung des Trainingsgeräts überwacht und ausgewertet, um somit eine fehlerhafte Haltung des Benutzers während der Benutzung des Trainingsgeräts feststellen zu können. Using sensors, the movement of the user is monitored while using the exercise device and evaluated so as to determine a faulty posture of the user during use of the exercise device. Zu diesem Zweck können zusätzlich zu den am Körper des Benutzers vorgesehenen Sensoren weitere Sensoren an bestimmten Stellen des entsprechenden Trainingsgeräts angebracht werden, die jeweils kinematische Kennwerte, wie zB eine Position, eine Geschwindigkeit oder eine Beschleunigung, erfassen. For this purpose further sensors each kinematic parameters in addition to those provided on the body of the user sensors are attached to certain points of the corresponding training device, such as detecting a position, speed or acceleration. Insbesondere können die Sensoren beispielsweise in Kleidungsstücken, Bänder oder Gurtsysteme integriert werden, so dass die Sensoren leicht am Körper des Benutzers angebracht werden können. In particular, the sensors can be integrated for example in garments, belts or belt systems, so that the sensors can be mounted easily on the body of the user.

Zur Auswertung der erfassten kinematischen Kennwerte ist eine Auswerteeinheit, wie zB ein tragbarer Rechner oder eine am Trainingsgerät angebrachte Zentraleinheit, vorgesehen, welche die von den Sensoren erfassten Messdaten verarbeitet und bei Erkennen einer fehlerhaften Bewegung bzw. fehlerhaften Haltung des Benutzers eine entsprechende Rückmeldung ausgibt. For the evaluation of the detected kinematic parameters is an evaluation unit, such as is provided a portable computer or mounted on the training device central processing unit, which processes the measurement data detected by the sensors and outputting a corresponding feedback upon detection of a faulty move or faulty posture of the user. Diese Rückmeldung kann beispielsweise optisch oder akustisch erfolgen. This feedback can for example be optical or acoustic.

Darüber hinaus ist auch möglich, dem Benutzer direkt eine Fehlhaltung durch Übertragung eines entsprechenden taktil-wahrnehmbaren Signals, zB in Form eines Druckimpulses oder einer Vibration, mitzuteilen. Moreover, is also possible to directly inform the user of an abnormal posture by transmitting a corresponding tactile-perceptible signal, for example in the form of a pressure pulse or a vibration. Ebenso ist denkbar, die Rückmeldung in Form eines mechanischen Eingriffs in das Trainingsgerät zu realisieren, so dass beispielsweise bei einer fehlerhaften Haltung des Benutzers das Trainingsgerät gebremst oder blockiert wird. It is also conceivable to realize the feedback in the form of a mechanical intervention in the training device, so that for example in a faulty position of the user braked, the exercise machine or blocked.

Die Auswerteeinheit kann einen Speicher aufweisen, um das Training des Benutzers zu dokumentieren. The evaluation may include a memory to document the training of the user. Des weiteren ist möglich, dass das System zudem die Funktion einer Trainingssteuerung übernimmt, so dass dem Benutzer für das Training an dem entsprechenden Trainingsgerät eine bestimmte Übung bzw. eine bestimmte Anzahl von Übungen vorgegeben wird. Furthermore is possible that the system also takes over the function of your training routine so that the user for training at the respective training device is given a certain exercise or a certain number of exercises.

Der Vorteil der vorliegenden Erfindung besteht darin, dass die zur Überwachung der Haltung des Benutzers an dem Trainingsgerät eingesetzten Sensorik klein, einfach zu tragen und billig ist. The advantage of the present invention is that the sensor used for monitoring the position of the user on the exercise machine to wear small, simple and cheap. Aufwendige mechanische Konstruktionen entfallen. Complex mechanical constructions omitted. Dies bedeutet sowohl einen Kostenvorteil als auch eine für den Benutzer angenehmere Benutzung des Trainingsgeräts. This means both a cost advantage and a more pleasant for the user using the training tool. Darüber hinaus können mit Hilfe der vorliegenden Erfindung auch Trainingseinheiten kontrolliert werden, die keine ausreichende mechanische Führung haben, wie dies beispielsweise bei Seilzuggeräten der Fall ist. Moreover, also training sessions are controlled by the present invention which do not have sufficient mechanical guide, as is the case for example with cable devices. Mit Hilfe der "virtuellen Bewegungsführung" können im Prinzip beliebige komplexe Trajektorien im Raum überwacht werden, wie zB kombinierte Dreh- und Längsbewegungen, bei denen normalerweise mechanische Konstruktionen schnell an ihre Grenzen stoßen würden. Using the "virtual motion control" arbitrary complex trajectories can in principle be monitored in space, such as combined rotary and longitudinal movements, which normally would quickly reach their limits mechanical constructions. Insgesamt kann mit Hilfe der vorliegenden Erfindung die Vermeidung von schädlichen Bewegungen an Trainingsgeräten deutlich verbessert werden, so dass Folgeschäden vermindert werden und ein besserer Trainingseffekt erzielbar ist. Overall, avoiding damaging movements of exercise equipment can be significantly improved by the present invention so that damages are reduced and a better training effect can be achieved.

Die vorliegende Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispiels unter Bezugnahme auf die beigefügte Zeichnung näher erläutert, wobei in Figur 1 schematisch der Aufbau eines bevorzugten Ausführungsbeispiels des erfindungsgemäßen Systems dargestellt ist. The present invention is explained below based on a preferred embodiment with reference to the accompanying drawing, wherein the construction of a preferred embodiment of the system according to the invention is shown schematically in FIG. 1

Figur 1 zeigt eine Person, die an einem Trainingsgerät 9 eine bestimmte Trainingsübung ausführt. 1 shows a person performing a training device 9 a particular training exercise. Im vorliegenden Fall handelt es sich bei dem Trainingsgerät 9 um ein Rudergerät. In the present case it concerns with the training device 9 to a rowing machine.

Am Körper der Person bzw. des Benutzers sind mehrere Sensoren 1 angebracht, die jeweils einen bestimmten kinematischen Kennwert während der Durchführung der entsprechenden Trainingsübung erfassen. The body of the person or the user a plurality of sensors 1 are mounted, each for detecting a particular kinematic parameter during the execution of the corresponding training exercise. Die Sensoren 1 können vorteilhaft beispielsweise in Kleidungsstücken, Bändern oder Gurtsystemen integriert werden. The sensors 1 may advantageously be integrated, for example in garments, belts or belt systems. Bei dem in Figur 1 gezeigten Beispiel ist eines dieser Gurtsysteme 8 dargestellt, wobei am Rücken des Benutzers einer dieser Sensoren 1 in den Gurt 8 integriert ist. In the example shown in Figure 1 this example of a belt systems is shown 8, in which is integrated into the belt 8 1 at the back of the user of one of these sensors. Derartige Gurtsysteme, die insbesondere ähnlich zu Bergsteigergurten ausgestaltet sein können, können von dem Benutzer leicht angelegt werden und behindern den Benutzer bei der Durchführung der Trainingsübung nicht bzw. nur geringfügig. Such belt systems that can be configured to climber belts in particular similar, can easily be created by the user and not or only slightly impede the user in performing the training exercise. Darüber hinaus ist auch denkbar, einige dieser Sensoren 1 an bestimmten Stellen des Trainingsgeräts 9 anzubringen, um Bewegungen während der Durchführung der Trainingsübung am Trainingsgerät 9 zu überwachen. In addition, it is also conceivable to install some of these sensors 1 at certain points of the exercise device 9 to monitor movements during the execution of the training exercise at the training device. 9 So ist beispielsweise möglich, mit Hilfe eines entsprechenden Sensors die Bewegung des Rudersitzes 12 zu überwachen, usw.. For example, possible to monitor the movement of the rudder seat 12 by means of an appropriate sensor, etc ..

Als Sensoren 1 können allgemein Sensoren verwendet werden, die beliebige kinematische Kennwerte, wie z. The sensors 1 generally sensors may be used, the desired kinematic characteristics such. B. Positions-, Geschwindigkeits- oder Beschleunigungswerte, erfassen können. As position, velocity or acceleration values ​​can grasp. Derartige Sensoren sind allgemein bekannt, so dass beispielsweise als Sensoren 3D-Ultraschallmarker mit Antenne, Beschleunigungssensoren, Winkelmesser, Flexionssensoren, Stretchsensoren oder dergleichen verwendet werden können. Such sensors are generally known, so that can be used for example as sensors 3D ultrasound marker antenna, acceleration sensors, protractor, Flexionssensoren, stretch sensors or the like.

Zur Auswertung der von den Sensoren 1 aufgenommenen Messdaten ist eine Auswerteeinheit 2 vorgesehen. For evaluating the images taken by the sensors 1 measurement data, an evaluation unit 2 is provided. Vorteilhafterweise handelt es sich dabei um einen tragbaren Rechner oder um eine an dem Trainingsgerät 9 angebrachte Zentraleinheit, um den Platzbedarf für das erfindungsgemäße System zu minimieren. Advantageously, this is a portable computer, or a training device mounted on the central processing unit 9 in order to minimize the space required for the inventive system.

Die Auswerteeinheit 2 empfängt die von den Sensoren 1 aufgenommenen Messdaten 14 der jeweils überwachten kinematischen Kennwerte, analysiert diese und gibt an den Benutzer eine Rückmeldung 15 über seine Haltung bzw. die von ihm durchgeführten Bewegungen aus, so dass der Benutzer seine Haltung während der Durchführung der Trainingsübung entsprechend korrigieren kann. The evaluation unit 2 receives the images taken by the sensors 1 measurement data 14 of each monitored kinematic characteristics, analyzes them, and outputs to the user feedback 15 via its attitude or they carry out movements, so that the user of his posture during the performance training exercise can correct accordingly.

Zu diesem Zweck umfasst die Auswerteeinheit 2 zunächst eine Filtereinrichtung 4, die - falls erforderlich - eine Vorverarbeitung der von den Sensoren 1 erfassten Messdaten 14 durchführt, so dass diese Messdaten für die nachfolgende Auswertung vorbereitet werden. For this purpose, the evaluation unit 2 comprises first filter means 4, which - if necessary - a preprocessing of the detected by the sensors 1 Data 14 performs, so that these measured data are prepared for the subsequent evaluation. Durch diese Filterung können insbesondere Störeinflüsse, die während der Übertragung der Messdaten 14 von den Sensoren 1 zu der Auswerteeinheit 2 auftreten können, eliminiert werden. This filtering particular interference that may occur from the sensors 1 to the evaluation unit 2 during the transmission of the measurement data 14 may be eliminated. Eine der Filtereinrichtung 4 nachgeordnete Einrichtung 5 führt eine kinematische Transformation der empfangenen Messdaten der Sensoren 1 durch, so dass von der Einrichtung 5 Informationen ausgegeben werden, die tatsächlich Rückschlüsse auf die von dem Benutzer durchgeführten Bewegungen zulassen. One of the filter device 4 downstream device 5 performs a kinematic transformation of the received measurement data of the sensors 1 through, so that output from the device 5 the information actually allow conclusions to those carried out by the user movements. Diese kinematische Transformation kann entfallen, wenn die Auswertung direkt durch Vergleich der von den Sensoren 1 aufgenommenen Messdaten mit einem Vergleichsmessdatenmuster erfolgt. This kinematic transformation can be omitted if the evaluation is carried out directly by comparing the images taken by the sensors 1 measurement data with a reference measurement data pattern. Zu diesem Zweck enthält die Auswerteeinheit 2 voreingestellte Messdaten bzw. Messdatenmuster, die insbesondere eine fehlerfreie Haltung bzw. Bewegung des Benutzers beschreiben, so dass durch einen nachfolgenden Vergleich der von den Sensoren 1 aufgenommenen Messdaten mit diesem voreingestellten Messdatenmuster direkt eine Aussage über die Haltung des Benutzers getroffen werden kann. For this purpose, the evaluation unit contains 2 preset measurement data or measurement data patterns particular to describe an error-free posture and movement of the user, so that by a subsequent comparison of the images taken by the sensors 1 measurement data with this preset data pattern directly an indication of the position of the user can be made. Darüber hinaus ist jedoch auch denkbar, dass die Auswertung, dh die Beurteilung der Haltung des Benutzers, auf der Ebene von Koordinaten bestimmter Raumpunkte erfolgt. Furthermore, however, it is also conceivable that the evaluation, ie the assessment of the position of the user, on the level of coordinates of certain points in space takes place. In diesem Fall ist die kinematische Transformation durch die Einrichtung 5 erforderlich, um die von den Sensoren 1 aufgenommenen Messdaten in die tatsächlich auszuwertenden Koordinateninformationen umzuwandeln. In this case, the kinematic transformation by the device 5 is required to convert the images taken by the sensors 1 in the measuring data actually evaluated coordinate information. So ist beispielsweise denkbar, durch die kinematische Transformation der Einrichtung 5 aus dem relativen Winkel bestimmter Sensoren 1 bzw. entsprechender Segmente eine Aussage über die maximale Krümmung der Wirbelsäule des Benutzers zu erzielen. For example, conceivable to obtain an indication of the maximum curvature of the spine of the user by the kinematic transformation of the device 5 from the relative angles of certain sensors 1 and corresponding segments.

Die Auswerteeinheit 2 enthält des weiteren als zentrales Element eine Einrichtung 6, die die ihr zugeführten Informationen auswertet und klassifiziert, um schließlich eine Aussage über die Haltung des Benutzers treffen zu können. The evaluation unit 2 further includes a central element means 6, which evaluates the information supplied to it and classified to finally be able to make a statement about the position of the user. Die Klassifizierung durch die Einrichtung 6 kann durch bekannte kinematische Methoden erfolgen. The classification by the device 6 can be carried out by known kinematic methods. Insbesondere kann die Einrichtung 6 beispielsweise eine Mustererkennung oder eine modellbasierte Identifikation auf der Basis von neuronalen Netzen oder durch Anwendung der Fuzzy-Logik durchführen, um die augenblickliche Haltung des Benutzers während der Durchführung der Trainingsübung an dem Trainingsgerät 9 beurteilen zu können. In particular, the means 6 can perform, for example, pattern recognition or a model-based identification on the basis of neural networks, or by the application of fuzzy logic, in order to assess the instantaneous position of the user during execution of the training exercise to the exercise device. 9

Die Auswerteeinheit 2 bzw. deren Klassifizierungseinrichtung 6 ist derart ausgestaltet, dass nach Erkennen einer fehlerhaften Bewegung bzw. fehlerhaften Haltung des Benutzers sofort eine entsprechende wirksame Rückmeldung 15 an den Benutzer bzw. an das Trainingsgerät 9 ausgegeben werden. The evaluation unit 2 and the classification device 6 is configured to be output after recognition of a faulty movement or incorrect position of the user immediately a corresponding effective feedback 15 to the user or to the exercise machine. 9 Zu diesem Zweck umfasst das in Figur 1 dargestellte System eine optische Anzeige 3, die visuell Informationen über die augenblickliche Haltung des Benutzers anzeigt und gegebenenfalls den Benutzer zur Korrektur seiner Haltung auffordert. For this purpose, the system shown in Figure 1 comprises a visual display 3, which visually displays information about the current position of the user and, optionally, prompts the user for the correction of its attitude. Ebenso ist eine akustische Ausgabe der Rückmeldung 15 über einen (nicht gezeigten) Lautsprecher möglich. Likewise, an audible output of the feedback 15 via a (not shown) in speaker. Besonders vorteilhaft ist die Ausgestaltung des in Figur 1 gezeigten Systems derart, dass eine taktile Rückmeldung 15 erfolgt. Particularly advantageous is the design of the system shown in Figure 1 is such that tactile feedback 15 is effected. Zu diesem Zweck können Druck- oder Vibrationselemente am Trainingsgeräte 9 bzw. am Benutzer angebracht sein, die bei Feststellen einer fehlerhaften Haltung durch die Auswerteeinheit 2 entsprechend aktiviert werden, um durch einen Druckimpuls bzw. eine entsprechende Vibration den Benutzer zur Korrektur seiner Haltung aufzufordern. For this purpose, pressure or vibration elements in the training devices 9 or the user to be attached, which are activated according upon detection of an erroneous attitude by the evaluation unit 2 to prompt by a pressure pulse or a corresponding vibration to the user for correction of its attitude. Derartige Druckelemente können beispielsweise analog zu den Sensoren 1 in einem Gurtsystem 8 angeordnet sein. Such printing elements may be arranged, for example analogously to the sensors 1 in a belt system. 8 In Figur 1 ist beispielhaft ein Druckelement 13 dargestellt, welches bei Aktivierung durch die Klassifizierungseinrichtung 6 einen Druckimpuls auf den Rücken bzw. die Wirbelsäule des Benutzers ausübt und somit den Benutzer auffordert, eine geradere Haltung anzunehmen. In Figure 1, a pressure element 13 is shown by way of example, which exerts upon activation by the classifying means 6 a pressure pulse on the back or spine of the user and thus prompting the user to assume a straighter position. Ebenso ist denkbar, die Rückmeldung 15 der Klassifizierungseinrichtung 6 bzw. der Auswerteeinheit 2 in Form eines mechanischen Eingriffs in das Trainingsgerät 9 vorzusehen, so dass bei Feststellen einer fehlerhaften Bewegung oder einer fehlerhaften Haltung des Benutzers mechanisch in das Trainingsgerät 9 eingegriffen werden kann, um beispielsweise das Trainingsgerät 9 zu bremsen oder zu blockieren. Likewise, the feedback 15 of the classifier 6, and the analysis unit 2 in the form of a mechanical engagement is conceivable to provide in the training device 9 so that action can be taken mechanically into the training device 9 upon detection of an incorrect movement or a faulty posture of the user, for example, 9 to brake the training device or block. Diesbezüglich ist in Figur 1 eine gestrichelte Verbindung zwischen der Klassifizierungseinrichtung 6 und einer hydraulischen Dämpfungseinrichtung 11 des Rudergeräts 9 dargestellt, so dass abhängig von dem Auswerteergebnis der Klassifizierungseinrichtung 6 der Widerstand dieser Dämpfungseinrichtung 11 durch eine entsprechende mechanische Konstruktion entsprechend verändert werden kann. the resistance of this damping device 11 can be changed accordingly by a corresponding mechanical design a broken connection between the classifying means 6 and a hydraulic damping device 11 of the rudder device In this respect, shown in Figure 9 1, so that depending on the evaluation result of the classification device. 6

Die in Figur 1 gezeigte Auswerteeinheit 2 umfasst zudem einen Speicher 7, der zur Dokumentation des Trainingsablaufs am Trainingsgerät 9 vorgesehen ist. The evaluation unit 2 shown in Figure 1 also includes a memory 7, which is provided for documentation of the training sequence in the training device. 9 Das heißt im Speicher 7 werden die von der Klassifizierungseinrichtung 6 ausgegebenen Informationen über die Haltung sowie die Bewegungen des Benutzers gespeichert. That is, the information output from the classifier 6 on the attitude and the user's movements are stored in memory. 7 Des weiteren werden in dem Speicher 7 weitere Trainingsinformationen, wie z. In addition to 7 other training information such in the memory. B. die Anzahl der Trainingsübungen, die Dauer des Trainings, die Anzahl der von der Klassifizierungseinrichtung 6 ermittelten Fehler usw., gespeichert. As the number of training exercises, the duration of training, the number of errors identified by the classifying means 6, etc., are stored. Die in dem Speicher 7 gespeicherten Informationen sind insbesondere für eine Therapiekontrolle im Laufe einer Rehabilitation des jeweiligen Benutzers sinnvoll und werden daher vorteilhafterweise an den jeweiligen Therapeuten übermittelt. The information stored in the memory 7 are particularly useful for a therapy control during rehabilitation of the respective user and are therefore advantageously transmitted to the respective therapist. Zudem können die in dem Speicher 7 gespeicherten Informationen zur Qualitätssicherung ausgewertet werden. In addition, the information stored in the memory 7 can be evaluated for quality assurance.

Schließlich ist das in Figur 1 gezeigte System auch mit der Funktion einer Trainingssteuerung ausgestattet. Finally, the system shown in Figure 1 is also equipped with the function of a training routine. Zu diesem Zweck umfasst die Auswerteeinheit 2 eine Steuereinrichtung 10, die dem jeweiligen Benutzer bestimmte Trainingsvorgaben, wie z. For this purpose, the evaluation unit 2 comprises a controller 10 that certain of each user training requirements such. B. die durchzuführende Anzahl von Trainingsübungen, die augenblickliche Anzahl von Trainingsübungen, Geschwindigkeitsinformationen, Leistungsinformationen, Trainingszeitinformationen usw., über die Anzeige 3 mitteilt. B. tells the number of performed training exercises, the current number of training exercises, speed information, service information, training time information, etc., on the display. 3

Die Signalübertragung 14 zwischen den Sensoren 1 und der Auswerteeinheit 2 sowie die Übertragung der Rückmeldung 15 von der Auswerteeinheit 2 an den Benutzer erfolgt vorteilhafterweise drahtlos, wobei insbesondere eine telemetrische Übertragung sämtlicher Datenflüsse zwischen den Sensoren 1 und der Auswerteeinheit 2 bzw. der Auswerteeinheit 2 und der jeweiligen Rückmeldeeinrichtung (in Figur 1 der Anzeige 3, dem Druckelement 13 oder der Dämpfungseinrichtung 11 des Trainingsgeräts 9) sowie zwischen der Auswerteeinheit 2 bzw. der Klassifizierungseinrichtung 6 und dem Speicher 7 möglich ist. The signal transmission 14 between the sensors 1 and the evaluation unit 2, and the transmission of the feedback 15 from the evaluation unit 2 to the user is advantageously carried out wirelessly, in particular, a telemetric transmission of all the data flows between the sensors 1 and the evaluation unit 2, and the evaluation unit 2 and the respective feedback device is possible (in Figure 1, the display 3, the pressure member 13 or the damping device 11 of the training device 9) and between the evaluation unit 2 and the classifying means 6 and the memory. 7

Anhand der obigen Beschreibung ist ersichtlich, dass die vorliegende Erfindung eine einfach und billig zu realisierende Möglichkeit bereitstellt, um die Haltung des Benutzers bzw. die von ihm ausgeführten Bewegungen während der Benutzung eines Trainingsgeräts 9 wirkungsvoll überwachen zu können. From the above description it is evident that the present invention provides an easy and cheap to realize possibility to monitor the position of the user or the movements performed by him during use of an exercise device 9 effectively. Die Haltung des Benutzers kann somit auch während komplizierter Trainingsübungen oder Bewegungsabläufen zuverlässig beurteilt werden. The user's position can be reliably assessed during complex training exercises or movements. Die Vermeidung von schädlichen Bewegungen und Folgeschäden kann deutlich verbessert werden und ein besserer Trainingseffekt ist möglich. Avoiding harmful movements and consequential damages can be significantly improved and a better training effect is possible.

Claims (26)

  1. A method for monitoring the posture of a user at a training apparatus, comprising the steps of:
    a) providing at least one sensor (1) attached to a user such that this acquires a kinematic parameter during the use of a training apparatus (9) by the user, and
    b) evaluating the kinematic parameter detected by the sensor (1), in order to determine an improper posture of the user during use of said training apparatus (9),
    characterised in that
    in step (a) measurement data acquired of the at least one sensor (1) is transmitted wirelessly to an evaluating unit (2) in order to implement step b).
  2. Method according to claim 1
    characterised in that
    in step a) a plurality of sensors (1) are attached to the user.
  3. Method according to claim 1 or 2
    characterised in that
    at least one sensor (1) is attached to the belt system (8) to be worn by the user.
  4. Method according to one of the preceding claims,
    characterised in that
    in step a) a plurality of sensors are attached to the training apparatus (9).
  5. Method according to one of the preceding claims,
    characterised in that
    with the aid of at least one sensor (1) as a kinematic parameter, a position, a speed or an acceleration is acquired during the use of the training apparatus (9) by the user.
  6. Method according to one of the preceding claims,
    characterised in that
    in the step b) the measurement data acquired by the at least one sensor (1) is compared with comparative data in order to determine an improper posture of the user during the use of the training apparatus (9).
  7. Method according to one of the preceding claims,
    characterised in that
    in step b) corresponding coordinates of specific points in space are derived from the measurement data acquired by the at least one sensor (1) and are compared with comparative data in order to determine an improper posture of the user during the use of the training apparatus (9).
  8. Method according to one of the preceding claims,
    characterised in that
    the user is provided with an acknowledgment of the result of the evaluation carried out in step b).
  9. Method according to claim 8
    characterised in that
    the user is provided with an acknowledgment in the form of wirelessly transmitted information signals.
  10. Method according to claims 8 or 9
    characterised in that
    user is provided with an optical or acoustic acknowledgment.
  11. Method according to one of claims 8 to 10
    characterised in that
    the user is provided with an acknowledgment in the form of a mechanical intervention in the training apparatus (9).
  12. Method according to one of claims 8 to 11
    characterised in that
    the user is provided with an acknowledgment in the form of signals transmitted to the user, which are discernible by touch.
  13. Method according to one of the preceding claims,
    characterised in that
    the result of the evaluation carried in step b) is stored.
  14. System for monitoring the posture of a user at a training apparatus
    with at least one sensor (1) provided for attachment to a user in order to acquire at least one kinematic parameter during the use of the training apparatus (9) by the user and
    with evaluation unit (2) for evaluating the at least one kinematic parameter acquired by said sensor (1) to determine if an improper posture of the user during the use of the training apparatus (9),
    characterised in that
    the system comprises transmission means (14) for transmitting measurement data of the least one kinematic parameter from the sensor (1) to the evaluating unit (2), with which the transmission means (14) are designed such that they allow a wireless transmission.
  15. System according to claim 14
    characterised in that
    the at least one sensor (1) is integrated in a belt system (8) which is worn by the user.
  16. System according to one of claims 14 or 15
    characterised in that
    at least one additional sensor (1) is attached to the training apparatus (9).
  17. System according to one of claims 14 to 16
    characterised in that
    the sensors (1) acquire different kinematic parameters during the use of the training apparatus (9) by the user.
  18. System according to one of claims 14 to 17
    characterised in that
    the sensors (1) are designed such that they can acquire a position, a speed and/or an acceleration as a kinematic parameter during the use of the training apparatus (9) by the user.
  19. System according to one of claims 14 to 17
    characterised in that
    the evaluating unit (2) are designed such that they carry out a comparison of measurement data of the acquired at least one kinematic parameter with comparative data and determine an improper posture of the user during the use of the training apparatus (9), as a function of the comparison result.
  20. System according to one of the preceding claims,
    characterised in that
    the evaluating unit (2) comprises a memory (7) for storing measurement data of the acquired at least one kinematic parameter and/or of the training data acquired during the use of the training apparatus (9) by the user.
  21. System according to one of the preceding claims,
    characterized in that
    the system comprises acknowledgment means (3,11,13) in order to inform the user of an improper posture during the use of the training apparatus (9) as a function of the result of the evaluation carried out by the evaluating unit (2).
  22. System according to claim 21,
    characterised in that
    the acknowledgment means comprise an optical display (3) and/or an acoustic loudspeaker output.
  23. System according to claim 21 or 22
    characterised in that
    the acknowledgment means (13) are configured such that they provide the user with an acknowledgment in the form of signals transmitted to the user, which are discernible by touch.
  24. System according to one of claims 21 to 23, characterized in that
    the acknowledgment means (11) are designed such that they mechanically intervene in the training apparatus (9) as a function of the result of the evaluation carried out by the evaluating unit (2) in order to inform the user of an improper posture during the use of the training apparatus (9).
  25. System according to one of claims 21 to 24, characterized in that
    the system comprises transmission means (15) for transmitting evaluation data from the evaluating unit (2) to the acknowledgment means (3, 11, 13), with which the transmission means (15) are designed such that they allow a wireless data transmission.
  26. System according to one of claims 14 to 25
    characterised in that
    the evaluation unit (2) comprise a training control device (3, 10), in order to control the use of the training apparatus (9) by the user according to specific training specification data.
EP19990119383 1998-10-12 1999-09-29 Process and system for monitoring the posture of the user of a training device Active EP0993845B1 (en)

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