DE202016007553U1 - System for analysis of a back posture - Google Patents

Abstract

System (1) for analysis of a back posture, comprising:
a flexible connecting means (2); and
at least three sensor units (3, 4, 5) for measuring an orientation which is attached to the flexible connecting means (2) and
at least substantially arranged along a line;
wherein the flexible connecting means (2) is formed in such a way as to be at least partially coupled to a contour (K) of a back (R), in particular non-positively, and wherein by the flexible connecting element (2) a, in particular maximum, distance the sensor units (3, 4, 5) is defined to each other.

Description

The invention relates to a system for analyzing a back posture, which has at least three sensor units for measuring an orientation.

Back pain and the resulting sequelae are a widespread phenomenon, which is based in particular on a consistently false back posture. Especially in sedentary activities people tend to take a resting position, which is detrimental to the intervertebral discs and also leads to a degeneration of the trunk muscles.

Even with physical exercise, however, it is difficult to take the ideal body position, on the one hand, because these are often unknown, on the other hand, because the executive person can not perceive their own movement from an external perspective and therefore no feedback or feedback receives about their performed movements.

The US patent application US2016 / 0262688 A1 relates to a biofeedback system having one or more biofeedback sensor devices, a biofeedback controller, and a wireless link that connects the sensor biofeedback devices to the biofeedback controller.

It is an object of the invention to provide an improved system for analyzing a back posture. In particular, it is an object of the invention to provide a system which is arranged to fully analyze the back posture and / or to output biofeedback via the back posture to a user.

This object is achieved by a system for analyzing a back posture according to claim 1. Advantageous embodiments of the invention are defined in the subclaims. The teaching of the claims is made a part of the description.

One aspect of the invention relates to a system for analyzing a back posture comprising a flexible connecting means and at least three sensor units for measuring an orientation. The sensor units are preferably attached to the flexible connection means and more preferably at least substantially arranged along a line. The flexible connecting means is preferably designed in the manner to be at least partially coupled to a contour of a back, in particular non-positively. The flexible connecting means preferably defines a maximum distance of the sensor units from one another.

An orientation in the sense of the invention is an orientation with respect to a solid angle. The orientation is preferably measured with respect to the perpendicular of the gravitational acceleration and / or as a relative solid angle.

A flexible connecting means in the context of the invention is a bendable device. A flexible connecting means may in particular consist of a textile material. Preferably, the flexible connection means is a bendable strip, in particular made of plastic.

A maximum distance is the distance that is established when no forces act on the flexible connection means. If a force acts in the longitudinal direction, then the flexible connecting means is preferably designed in such a way that it can stretch and thus yield to the force.

The invention is based on the recognition that the back posture can be determined particularly well with three sensor units for measuring an orientation if the three sensor units can be coupled at least substantially along a line along the spinal column. By this arrangement, the respective orientation of the back, in particular in the coronal plane of a human body, can be measured.

From the orientation of the back can be determined in the sequence to the respective position of the spine in the area which defines a respective back posture.

In order to make the use of the system according to the invention as pleasant as possible for a user, preferably only the maximum distance between the sensor units is defined by the flexible connecting means. The flexible connection means can thus, for example when putting on and taking off the system according to the invention, be brought into another form and does not hinder a user in his freedom of movement.

In an advantageous embodiment of the system according to the invention, the at least three sensor units are arranged in such a way as to be able to determine, on the one hand, a kyphosis angle and, on the other hand, a lordosis angle of the back posture. About the kyphosis angle and the lordosis angle can make a very significant statement about the respective back posture. In particular, this essentially defines the entire back posture with respect to the coronal plane.

The kyphosis angle and the lordosis angle can be determined from the measurements of the sensor units as follows: Preferably, the angles can be determined by measuring the orientation of the sensor units at the extreme points of the back and a subsequent calculation of the difference angles. This type of determination is also referred to as Cobb's method.

If the back length is known, in particular the distance between the first thoracic vertebra TH1 and the twelfth thoracic vertebra TH12 and the distance between the first lumbar vertebra L1 and the fifth lumbar vertebra L5, and if the distance of the sensor units is known, the kyphosis and lordosis angles can also be determined by any two points on an arc, which is formed by the back or the flexible connecting means, or by the angle of the tangents that touch the arc in these points, determine. The distance between the sensor units is known by design or can be measured. The back length can be determined by a single initialization or by data aggregation.

In a further advantageous embodiment of the system according to the invention, the distance between the at least three sensor units can be changed, in particular by an adjustment of the flexible connection means and / or by a change of a respective arrangement of the at least three sensor units on the flexible connection means. In this way it can be ensured that the sensor units are in each case at the positions on the back at which the necessary orientations can be determined.

In a further advantageous embodiment of the invention, the maximum distance between the sensor units is defined such that a first sensor unit is arranged in a region of the flexible connection means, which corresponds to the upper thoracic spine of the back, in particular substantially a position of the first thoracic vertebra, and a second sensor unit is arranged in a region of the flexible connection means which corresponds to the lower thoracic spine, in particular substantially a position of the twelfth thoracic vertebra, when a third sensor unit is arranged in a region of the flexible connection means which covers the region of the lower lumbar spine, in particular in FIG Substantially corresponds to a position of the fifth lumbar vertebra L5 or the sacrum, and when the flexible connecting means follows the contour of the back. If the individual sensor units with these spacings are attached to one another on the flexible connecting means, then the analysis of the back posture with respect to the kyphosis angle and the lordosis angle can take place by means of the orientation data generated by the sensor units, in particular with regard to the back posture in the coronal plane.

In a further advantageous embodiment, further sensor units are fastened to the flexible connection means, in particular between the second sensor unit and the third sensor unit and / or between the first sensor unit and the second sensor unit and / or at least substantially over the entire length of the flexible connection means. By providing additional sensor units, an even better analysis of the back posture can be carried out. In particular, it can be ensured even with a slippage of the flexible connecting means from its desired position on the back, that further measurements of the orientation can be made at the necessary measuring points.

By using more than two sensor units per angle, the over-determination can reduce measurement errors, erroneous sensors, e.g. in a drape of the garment, in which the flexible connection means can be integrated, are excluded. Furthermore, a displacement of the sensors from one back region to the other can be recognized and tolerated by the redundancy. Thus, accurate placement of the sensors in this case is not essential.

By using a larger number of sensors is also possible to detect other, atypical spine lines.

In a further advantageous embodiment of the system according to the invention, the at least three sensor units each have an acceleration sensor and / or a gyro sensor, which preferably provide a digital signal. By means of the acceleration sensors, the respective orientation of the sensor units can be determined with respect to the perpendicular of the gravitational acceleration. With the gyro sensors, possible relative accelerations of the sensor units taking place parallel to the measurement of the orientation can be taken into account in the calculation of the orientation from the measurements of the acceleration sensors. In this case, for example, it can be taken into account that a person gets up or, for example, accelerates or slows down while running.

In a further advantageous embodiment of the system according to the invention, this further comprises at least one biofeedback device.

By biofeedback within the meaning of the invention, changes of state variables biological processes that are not accessible to immediate sensory perception, observable with technical aids, that is, accessible to the consciousness of a person. In particular, according to the invention, a user can be informed by means of a biofeedback about correct or incorrect posture.

In a further advantageous embodiment of the system according to the invention, the at least one biofeedback device has actuators which are set up to generate an EMS, an electric shock and / or haptic feedback.

In a further advantageous embodiment of the system according to the invention, the at least one biofeedback device is likewise attached to the flexible connection means. In this way, it can be ensured that the biofeedback device is also in the immediate vicinity of a user's body, so that an impulse generated by the biofeedback device is transmitted to the user.

In a further advantageous embodiment of the system according to the invention, the at least one biofeedback device is arranged in a region of the flexible connection means, in which a malposition of the back can occur. In this way, a user can be informed in which back he should change his attitude.

In a further advantageous embodiment, the system according to the invention further comprises a control unit which is set up to record data of the at least three sensor units and / or to control the at least one biofeedback device on the basis of the data.

In a further advantageous embodiment of the system according to the invention, the control unit is set up to determine a position of at least one sensor unit with respect to a spine on the basis of recorded data. To get as accurate information about the back posture, it is advantageous to know the exact location of the respective sensor units. This is achieved on the one hand by the flexible connecting means, which preferably has a certain stiffness in the longitudinal direction, in order to prevent slippage of the sensor units with respect to the back. However, if slipping occurs, it can be deduced from the data of a respective sensor, in particular a comparison with known data schemes, at which position with respect to the spine the respective sensor unit is located.

In a further advantageous embodiment of the system according to the invention, the control unit is set up to record data in conjunction with a time stamp, which preferably sets the data in a relative relationship to one another.

In a further advantageous embodiment of the system according to the invention, the control unit has a data interface, in particular a wireless interface.

In a further advantageous embodiment of the system according to the invention, the control unit is also attached to the flexible connection device.

In a further advantageous embodiment of the system according to the invention, the flexible connecting device has at least one watertight chamber, wherein the at least three sensor units and / or the at least one biofeedback device and / or the control unit are arranged in the at least one watertight chamber.

Preferably, the system according to the invention in this advantageous embodiment is completely waterproof and can more preferably be washed in a washing machine without being damaged.

In a further advantageous embodiment of the system according to the invention, in each case a sensor unit and / or a biofeedback device is arranged in a watertight chamber. Preferably, in one of the then existing watertight chambers and the control unit is housed. Also in this way the system according to the invention is washable.

In a further advantageous embodiment, the at least three sensor units and / or the at least one biofeedback device and / or the control unit for data transmission, in particular by means of a data bus and / or a wireless connection, connected.

In a further advantageous embodiment of the system according to the invention, all sensor units access the same, in particular four, data bus lines, the data bus preferably being an I2C bus.

In a further advantageous embodiment of the system according to the invention, the data lines of the data bus in a textile fabric, in particular the flexible connecting means, incorporated, in particular woven. Preferably, the data lines are in the textile fabric for a user imperceptible. More preferably, the data lines do not interfere with the flexible properties of the flexible bonding agent or other textile fabric.

In a further advantageous embodiment, the system according to the invention further comprises a power supply device, which preferably has at least one battery and / or is designed for energy harvesting. In energy harvesting, preferably, the kinetic energy of a user's motion may be converted to electrical energy, such as flexing of the flexible connector by a user as they move.

In a further advantageous embodiment, the system according to the invention further comprises a garment, wherein the flexible connecting means is arranged at least substantially in the middle of the back part of the garment or is formed by the garment in the middle of the back part.

In a further advantageous embodiment of the system according to the invention, the flexible connecting means in a piece of clothing, in particular a shirt, integrated or is formed by this.

In a further advantageous embodiment of the system according to the invention the garment is elastically formed in such a way that the flexible connecting means can be coupled by traction with the contour of the back. Preferably, the flexible connecting means, which is formed by the garment or is formed as an additional element, stretched by the tensile force in the transverse direction to the spine and coupled in this way with the spine.

In a further advantageous embodiment of the system according to the invention, the flexible connecting means in particular elastic straps, which are tensioned around a torso of a human. Also by the straps, the flexible connection means, such as by a garment, by pulling force with the contour of the back coupled.

In a further advantageous embodiment of the system according to the invention, the flexible connecting means is substantially rigid in the longitudinal direction and substantially flexible in at least one direction perpendicular to the longitudinal direction.

• 1 ein erstes Ausführungsbeispiel des erfindungsgemäßen Systems an einem Torso eines Menschen in Rückansicht;
• 2 eine Vorderansicht des Torso mit dem ersten Ausführungsbeispiel des erfindungsgemäßen Systems nach 1;
• 3 eine weitere Vorderansicht des Torso mit einer Variante des ersten Ausführungsbeispiels des erfindungsgemäßen Systems nach 1;
• 4 ein zweites Ausführungsbeispiel des erfindungsgemäßen Systems an einem Torso in Rückansicht;
• 5 eine Vorderansicht des Torso mit dem zweiten Ausführungsbeispiel des erfindungsgemäßen Systems nach 4;
• 6a und b zweies verschiedener Varianten des erfindungsgemäßen Systems, welche in den erfindungsgemäßen Ausführungsbeispielen zum Einsatz kommen können;
• 7a und b eine Darstellung einer Wirbelsäule sowie einer Körperkontur eines Menschen von der Seite mit einem ersten Ausführungsbeispiel einer Anordnung von Sensoreinheiten gemäß der Erfindung;
• 8a und 8b eine Darstellung einer Wirbelsäule sowie einer seitlichen Körperkontur eines Menschen, wobei ein zweites Ausführungsbeispiel für eine Anordnung von Sensoreinheiten gemäß der Erfindung dargestellt ist;
• 9a und b eine Darstellung einer Wirbelsäule und einer seitlichen Körperkontur eines Menschen, wobei ein drittes Ausführungsbeispiel für die Anordnung von Sensoreinheiten gezeigt ist;
• 10 eine erste Anzeige einer Anwendung, in welcher das erfindungsgemäße System ein visuelles Biofeedback geben kann;und
• 11 eine zweite Anzeige der Anwendung, mit welcher das erfindungsgemäße System ein visuelles Biofeedback geben kannt.

Further features and advantages of the invention will be described in the description with reference to the figures. These show at least partially schematically:

• 1 a first embodiment of the system according to the invention on a torso of a human in rear view;
• 2 a front view of the torso with the first embodiment of the system according to the invention 1 ;
• 3 a further front view of the torso with a variant of the first embodiment of the system according to the invention 1 ;
• 4 A second embodiment of the system according to the invention on a torso in rear view;
• 5 a front view of the torso with the second embodiment of the system according to the invention 4 ;
• 6a and b two different variants of the system according to the invention, which can be used in the embodiments according to the invention;
• 7a and b is an illustration of a spine and a body contour of a human from the side with a first embodiment of an array of sensor units according to the invention;
• 8a and 8b a representation of a spine and a lateral body contour of a human, wherein a second embodiment of an array of sensor units according to the invention is shown;
• 9a and b is an illustration of a spine and a lateral body contour of a human, showing a third embodiment of the arrangement of sensor units;
• 10 a first display of an application in which the system according to the invention can provide visual biofeedback;
• 11 a second indication of the application with which the system according to the invention can provide a visual biofeedback.

Based on 1 to 5 become two embodiments of a system according to the invention 1 described which by means of a flexible connecting means 2 and first straps 14 as well as second straps 15 can be attached to the torso of a human, so that the flexible connecting means 2 and in particular at this arranged sensor units 3 . 4 . 5 with the back R , in particular with a shape of the back R in the spine, is / are coupled.

The straps 14 . 15 can in this case by means of separate elements, in particular buckles, as in 1 shown with the flexible connection means 2 be connected or also, as in 4 shown with the flexible connection means 2 sewn.

Furthermore, the flexible connection means 2 as well as the straps 14 . 15 be designed as a kind of halter, as in the 1 to 3 shown.

Alternatively, the straps 14 . 15 but also in a piece of clothing 12 be incorporated as in the 4 and 5 is shown.

In the first embodiment of the 1 to 3 include the first straps 14 each of the shoulders and are at a first end (top) of the flexible connection means 2 and in the middle of the flexible connection means 2 attached to this. The second belt 15 is with a second end of the flexible connection means 2 connected and leads around the waist T of a man's torso. Preferably, the first straps 14 additionally two further belt parts 14a, 14b, with which an additional tension in the chest area directly on the flexible connecting means 2 or on the first straps 14 can be brought.

The second embodiment of the 4 and 5 differs essentially in that the flexible connecting means and the straps 14 . 15 in a garment 12 are incorporated. The flexible connection means 2 this extends essentially over the entire extent of the garment 12 and therefore towers with its ends the respective attachment points of the straps 14 . 15 ,

By means of straps 14 . 15 and / or the garment 12 can be the flexible lanyard 2 in to determine the back posture sufficient manner with the contour of the back R , especially in the area of the spine. Preferably, the inventive system 1 be worn under normal clothing or may even be integrated into normal everyday wear to ensure constant monitoring of the back posture.

In the 6a and 6b become two embodiments of the system according to the invention 1 , which can be fastened with straps and / or by means of a garment on the torso of a human, shown.

The system 1 in 6a has a watertight chamber 8th on, in which the sensor units 3 . 4 . 5 and preferably the biofeedback device 6 are arranged. The waterproof chamber 8th in this case preferably extends over the entire length of the flexible connection means 2 or forms the flexible connection means 2 , A control unit 7 is with the electronic elements in the watertight chamber 8th via a data bus 11 connected, with which preferably also the electronic elements are connected in the watertight chamber. Alternatively, the control unit 7 also in the watertight chamber 8th be arranged.

In the embodiment of 6b the system according to the invention in contrast to 6a three watertight chambers 8th . 9 . 10 in each case at least one sensor unit in each watertight chamber 3 . 4 . 5 is arranged. In the illustrated embodiment, in the second, middle watertight chamber 9 in addition a biofeedback facility 6 arranged. Alternatively, this biofeedback device may also be located at any other location on the flexible connection means 2 , in particular in one of the other two chambers of the first chamber 8th at one end of the flexible connection means 2 or in the third chamber 10 at a second end of the flexible connection means 2 be arranged. Also in this embodiment, the system 1 a control device 7 which is also about the individual electronic elements of the system 1 connecting data bus 11 connected to these electronic elements.

The control device 7 furthermore preferably has a radio interface, for example WLAN, Bluetooth, in particular Bluetooth low energy, GSM, NFC or the like.

This can be used to connect to signal conditioning instruments or display devices, for example to an app on a smart device, or to transfer the collected data to a server, for example. For this purpose, preferably an automatic connection setup and download of the data can be provided if a smart device or a PC are within reach.

Furthermore, a connection to emergency call systems can be provided. In particular, it can be provided that, for example, falls can be detected by an evaluation of the data and the recognition of movement patterns and an alarm can be issued via the emergency call system.

The data bus 11 and other electrical connections within the system 1 For example, they can be realized via conductive fibers which are woven into a textile fabric, for example textile fabrics of a piece of clothing 12 and / or the flexible connection means 2 , are woven. In this way, no additional cables or wires must be provided, which is a wearer of the system according to the invention 1 could possibly negatively influence by a user.

Preferably, the system according to the invention 1 a device for wireless charging of batteries, which preferably also in the control unit 7 are arranged. The control unit 7 furthermore preferably has a digital memory, in particular an EEPROM memory. Furthermore, a real-time clock is preferably provided in order to provide data with a time stamp for the assignment of the data at a time.

The sensor units 3 . 4 . 5 have as sensors an acceleration sensor or accelerometer or a gyrometer, in particular a magnetometer on. Particularly preferably, these have both an accelerometer and a gyrometer. Furthermore, in the system 1 additional sensors may be provided which additionally determine, for example, the heart rate and / or the blood pressure.

The accelerometers of the sensor units 3 . 4 . 5 are preferably arranged to determine an angle to the perpendicular of the gravitational acceleration. On the basis of this angle, in turn, the respective back position, in particular the kyphosis angle and the lordosis angle, can be determined.

It is particularly advantageous for this, at least three sensor units 3 . 4 . 5 provide, which are arranged at different locations of the back along the spine. A more accurate measurement can be achieved by adding even more sensors in the system 1 to be ordered. For example, in a watertight chamber 8th according to 6a over the entire range of the back sensor units 3x, 4x, 5x can be arranged. This also results in a certain tolerance of the system against a failure of a single sensor unit and the slippage of sensor units or the flexible connection means connected thereto 2 , An exact placement of the individual sensor units 3 . 4 . 5 is therefore no longer absolutely necessary. In particular, it may be provided that the control unit 7 is set up to close from the collected data of a sensor unit to its position along the spine.

Preferably, those of the sensor units 3 . 4 . 5 collected data not only for the analysis of the back posture, but also serve as input for computer games and in particular virtual reality and / or augmented reality applications. Preferably, the system is 1 further set up to record the GPS position by means of a GPS sensor.

As a biofeedback facility 6 In particular, vibration actuators, EMS actuators, electric actuators are used. In particular, several of the mentioned actuators can be used to give different types of biofeedback.

Preferably, this gives a direct feedback on malposition, too little and too false movements. In addition or alternatively it can be provided that data is output to connected applications (in particular apps). For example, the data may be used herein to determine movement patterns in sports, such as push-ups, to detect steps in pedestrian navigation, as well as blind navigation, but also to provide an echoless alarm for message entry or games such as paintball to provide.

Based on 7 . 8th and 9 is a positioning of sensor units on the spine or on the back R of a user to determine the kyphosis angle and lordosis angle.

Preferably, in this case, three sensor units as in 7b shown, wherein a first sensor unit 3 an orientation of a tangent in the upper thoracic region, in particular in the region of the first thoracic vertebra TH1 , of a user.

A second sensor device 4 is intended to provide orientation to a tangent in the lower thoracic region, especially in the region of the twelfth thoracic vertebra TH12 to determine a user.

The third sensor unit 5 is finally in the way on the back R a user attached that the orientation of a tangent in the lumbar vertebrae, especially in the region of the fifth lumbar vertebra L5 , can be determined. The tangents are each drawn with different lines.

From the angles between the tangents or from these derived angle relationships, the kyphosis angle can in each case be measured in a measurement between the first sensor unit 3 and the second sensor unit 4 and the lordosis angle in a measurement between the second sensor unit 4 and the third sensor unit 5 be calculated.

The embodiment of 8th is different from that of the 7 in that instead of individual sensor units 3 . 4 . 5 in every area of interest in the back R several sensor units 3x, 4x, 5x are arranged.

In 9 This plurality of sensor units is only in the area between the second sensor unit 4 and the third sensor unit 5 as further sensor units 4x, 5x provided. In particular in this area there is a risk that the system according to the invention and in particular the flexible connecting means 2 slip, leaving the second sensor unit 4 and / or the third sensor unit 5 no longer in the desired position on the back R are coupled. In this case, it can be provided that the respective measurement is taken over by one or more further sensors 4x, 5x.

10 shows an embodiment of a display for a visual biofeedback. This can be done for example in an application (app) of a smart device, to which the through the sensor units 3 . 4 . 5 generated data via the control device 7 , in particular their wireless interface, have been transmitted.

11 shows a second view of the same application.

In 10 In this case, a deficient back position is taken by a user, accordingly, on the stylized back (right side), the areas which have a poor back position, for example, be marked in red, whereas those areas which have a good attitude, can be marked in green. In 11 The user has taken a completely positive back posture, so that the back can be marked essentially by means of a green area.

LIST OF REFERENCE NUMBERS

1

system

2

Flexible connection means

3, 4, 5

sensor unit

6

Biofeedback device

7

control device

8, 9, 10

Waterproof chamber

11

bus

12

garment

13

back part

14, 15

belt

T

torso

R

move

TH1

First thoracic vertebra

TH12

Twelfth thoracic vertebra

L5

Fifth lumbar vertebra

K

sacrum

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 2016/0262688 A1 [0004]

Claims (29)

System (1) for analysis of a back posture, comprising: a flexible connecting means (2); and at least three sensor units (3, 4, 5) for measuring an orientation which is attached to the flexible connecting means (2) and at least substantially arranged along a line; wherein the flexible connecting means (2) is formed in such a way as to be at least partially coupled to a contour (K) of a back (R), in particular non-positively, and wherein by the flexible connecting element (2) a, in particular maximum, distance the sensor units (3, 4, 5) is defined to each other. System (1) to Claim 1 wherein the at least three sensor units (3, 4, 5) are arranged in such a way as to be able to determine, on the one hand, a kyphosis angle and, on the other hand, a lordosis angle of the back posture. System (1) to Claim 1 or 2 wherein the distance between the at least three sensor units (3, 4, 5) can be changed, in particular by an adjustment of the flexible connection means (2) and / or by a change of a respective arrangement of the at least three sensor units (3, 4, 5) on the flexible connection means (2). System according to one of Claims 1 to 3 in which the maximum distance between two sensor units is defined in such a way that a first sensor unit (3) is arranged in a region of the flexible connection means which covers the upper thoracic spine of the back (R), in particular substantially a position of the first thoracic vertebra (FIG. TH1), a second sensor unit (4) is arranged in a region of the flexible connection means (2) which corresponds to the lower thoracic spine, in particular substantially a position of the 12th thoracic vertebra (TH12), if a third sensor unit (5) is arranged in a region of the flexible connecting means (2), which corresponds to the area of the lower lumbar spine, in particular substantially a position of the 5th lumbar vertebra (L5), or the sacrum (K), and if the flexible connecting means (2) of the contour of the back (R) follows. System (1) to Claim 4 , wherein further sensor units (3x, 4x, 5x) are attached to the flexible connection means (2), in particular between the second sensor unit (4) and the third sensor unit (5) and / or between the first sensor unit (3) and the second sensor unit (4) and / or at least substantially over the entire length of the flexible connection means (2). System (1) according to one of the preceding claims, wherein the at least three sensor units (3, 4, 5) each have an acceleration sensor and / or a gyrosensor, which preferably provide a digital output signal. System (1) according to any one of the preceding claims, further comprising at least one biofeedback device (6). System (1) to Claim 7 wherein the at least one biofeedback device (6) comprises actuators configured to generate an EMS, electroshock and / or haptic feedback. System (1) to Claim 7 or 8th wherein the at least one biofeedback device (6) is also attached to the flexible connection means (2). System (1) according to one of Claims 7 to 9 wherein the at least one biofeedback device (6) is arranged in a region of the flexible connection means (2) in which a malposition of the back (R) can occur. A system (1) according to any one of the preceding claims, further comprising a control unit (7) arranged to record data of the at least three sensor units (3, 4, 5) and / or the at least one biofeedback device (6) on the basis of Control data. System (1) to Claim 11 wherein the control unit (7) is arranged to determine a position of at least one sensor unit (3, 4, 5) with respect to the spine (R) on the basis of recorded data. System (1) to Claim 11 or 12 wherein the control unit (7) is arranged to record the data in conjunction with a time stamp which preferably sets the data in a relative relationship to one another. System (1) according to one of the claims Claims 11 to 13 , wherein the control unit (7) has a data interface, in particular a wireless interface. System according to one of Claims 11 to 14 wherein the control unit (7) is also attached to the flexible connection means (2). System (1) according to one of the preceding claims, wherein the flexible connecting device (2) has at least one watertight chamber (8, 9, 10) in which the at least three sensor units (3, 4, 5) and / or the at least one biofeedback device (6) and / or the Control unit (7) in the at least one watertight chamber (8, 9, 10) are arranged. System (1) to Claim 16 , wherein in each case a sensor unit (3, 4, 5) and / or in each case a biofeedback device (6) in a watertight chamber (8, 9, 10) are arranged. System (1) according to one of the preceding claims, wherein the at least three sensor units (3, 4, 5) and / or the at least one biofeedback device (6) and / or the control unit (7) for data transmission, in particular by means of a data bus (11). , are connected. System (1) to Claim 18 , wherein all the sensor units (3, 4, 5) use the same, in particular four, data bus lines, wherein the data bus (11) is preferably an I2C bus. System (1) to Claim 18 or 19 , Data lines of the data bus (11) in a textile fabric, in particular the flexible connection means (2) incorporated, in particular woven. System (1) according to one of the preceding claims, further comprising a power supply device, which preferably has at least one battery and / or is designed for energy harvesting. A system (1) according to any one of the preceding claims, further comprising a garment (12), wherein the flexible connection means (2) is disposed at least substantially in the center of the back (13) of the garment (12) or from the garment (12 ) is formed in the middle of the back part (13). System (1) according to one of the preceding claims, wherein the flexible connecting means (2) in a garment (12), in particular a shirt is integrated. System (1) according to any one of the preceding claims, wherein the garment (12) is elastic, in such a way that the flexible connecting means (2) can be coupled by traction with the contour of the spine (R). System (1) according to one of the preceding claims, wherein the flexible connecting means (2), in particular elastic, straps (14, 15) which are tensioned around a torso (T) of a human. System (1) to Claim 25 wherein the flexible connecting means (2) comprises two straps (14, 15), wherein a first strap (14) is secured in the region of a first end and / or in a central region of the flexible connecting means (2) and is adapted to move around the shoulders (S) and the back (R) in the thoracic region of a torso (T) to run around, and wherein a second strap (15) in the region of a second end of the flexible connecting means (2) is fixed and is adapted to the Waist (TA) of a torso (T) to run. System (1) to Claim 26 wherein the first strap (14) comprises two further strap parts (14a, 14b) arranged to run around the chest area (B) of a torso (T). System (1) according to one of Claims 25 to 27 wherein the straps (14, 15) are integrated in a garment (12). System (1) according to one of the preceding claims, wherein the flexible connecting means (2) is at least substantially rigid in the longitudinal direction and at least substantially flexible in at least one direction perpendicular thereto.

Images