Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Medica 2018: Mobile motion feedback to help patients reduce relieving postures when walking

07.11.2018

Patients who have received a new hip joint must first learn to walk “normally” again after the operation. A mobile gait analysis and feedback system developed by a Kaiserslautern research team in cooperation with physicians and biomechanics shall help to achieve this goal. Only little technology is necessary: The movement sequences are measured via small sensors on the feet, legs, and pelvis. A software evaluates the gait and gives the user feedback so that he can improve his movement. At the Medica medical technology trade fair in Düsseldorf from 12 to 15 November, the researchers will present their project at the research stand (hall 7a, stand B06) of Rhineland-Palatinate.

Dr Gabriele Bleser and her team from the junior research group wearHEALTH at the Technische Universität Kaiserslautern (TUK) are working on a mobile gait analysis system that provides direct feedback to the user. It targets people who suffer from arthrosis, for example, and who receive a new hip joint as a result.


The movement sequences are measured via small sensors on the feet, legs, and pelvis.

Credits: AG wearHEALTH

These have usually developed and internalized a relieving posture over many years. “After the operation, the pain is gone, but the posture remains. The 'normal' way of walking has to be learned in rehabilitation and beyond,” says Professor Dr Thomas Jöllenbeck, who heads the Institute of Biomechanics at the Lindenplatz Rehabilitation Clinic in Bad Sassendorf, North Rhine-Westphalia. He and his colleague Juliane Pietschmann work together with the Kaiserslautern researchers.

The technology is intended to support the rehabilitation process. Therefore, seven sensors are used. They are simply attached to the feet, lower legs, thighs, and pelvis. “Accelerations and angular velocities measured by the sensors directly at the body are processed by our software. This software calculates motion parameters such as hip, knee and ankle joint angles as well as step lengths,” explains Dr Bertram Taetz, who, like Markus Miezal, is also involved in the project.

The computer programme thus determines an individual movement pattern that shows whether there are deviations or individual peculiarities in the gait. “The user receives immediate feedback and information via sound and vibrations, with which he can become aware of his gait pattern,” says Bleser.

“Our long-term goal is to develop a mobile system that allows patients to continue training at home even after rehab.” But it's not just the patient who receives feedback; physiotherapists and physicians can also see the data directly on a screen in the form of an animated 3D bone model and diagrams that make special features in the gait easily visible.

This technology is not only interesting for orthopaedic rehabilitation but also patients after a stroke could practice with it. In addition, the application is interesting for various types of sports, for example to study or optimize movement sequences.

“Our system is currently still in the development phase. Studies on patients are still pending. It will be some time before it can reach the market,” Taetz continues. “We also have to significantly increase wearing comfort,” says Bleser. The team is working with computer scientist Professor Dr Didier Stricker from the German Research Centre for Artificial Intelligence in Kaiserslautern to connect a lightweight sensor network to the system.

Also involved in the gait analysis technology at the TUK are sports scientists led by Professor Dr Michael Fröhlich, who are investigating whether the system meets practical requirements, and engineers led by Professor Dr Norbert Wehn, who are working on improving the transmission technology. The work is funded as part of the “Innovative Universities” federal-state initiative, in which the TUK and Kaiserslautern University of Applied Sciences are involved in the “Open Digitisation Alliance Palatinate” project.

The Kaiserslautern junior research group wearHEALTH is an interdisciplinary team from the fields of computer science, mathematics, psychology, cognitive science, motion science and control engineering. They develop digital techniques that are intended to improve health preventively or, for example, in the form of rehabilitation measures.

The team is funded by the Federal Ministry of Education and Research as part of the “Interdisciplinary Competence Building in the Research Focus Human-Technology Interaction for Demographic Change” measure.

Wissenschaftliche Ansprechpartner:

Dr Gabriele Bleser
AG [working group] wearHEALTH
Phone: +49(0)631 205-3327
E-mail: bleser[at]cs.uni-kl.de

Dr Bertram Taetz
AG [working group] wearHEALTH
Phone: +49(0)631 205-2644
E-mail: taetz[at]cs.uni-kl.de

Melanie Löw | Technische Universität Kaiserslautern
Further information:
http://www.uni-kl.de

More articles from Trade Fair News:

nachricht Medica 2019: Arteriosclerosis - new technologies help to find proper catheters and location of vasoconstriction
11.11.2019 | Technische Universität Kaiserslautern

nachricht Laser versus weeds: LZH shows Farming 4.0 at the Agritechnica
08.11.2019 | Laser Zentrum Hannover e.V.

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Atoms don't like jumping rope

Nanooptical traps are a promising building block for quantum technologies. Austrian and German scientists have now removed an important obstacle to their practical use. They were able to show that a special form of mechanical vibration heats trapped particles in a very short time and knocks them out of the trap.

By controlling individual atoms, quantum properties can be investigated and made usable for technological applications. For about ten years, physicists have...

Im Focus: Images from NJIT's big bear solar observatory peel away layers of a stellar mystery

An international team of scientists, including three researchers from New Jersey Institute of Technology (NJIT), has shed new light on one of the central mysteries of solar physics: how energy from the Sun is transferred to the star's upper atmosphere, heating it to 1 million degrees Fahrenheit and higher in some regions, temperatures that are vastly hotter than the Sun's surface.

With new images from NJIT's Big Bear Solar Observatory (BBSO), the researchers have revealed in groundbreaking, granular detail what appears to be a likely...

Im Focus: New opportunities in additive manufacturing presented

Fraunhofer IFAM Dresden demonstrates manufacturing of copper components

The Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM in Dresden has succeeded in using Selective Electron Beam Melting (SEBM) to...

Im Focus: New Pitt research finds carbon nanotubes show a love/hate relationship with water

Carbon nanotubes (CNTs) are valuable for a wide variety of applications. Made of graphene sheets rolled into tubes 10,000 times smaller than a human hair, CNTs have an exceptional strength-to-mass ratio and excellent thermal and electrical properties. These features make them ideal for a range of applications, including supercapacitors, interconnects, adhesives, particle trapping and structural color.

New research reveals even more potential for CNTs: as a coating, they can both repel and hold water in place, a useful property for applications like printing,...

Im Focus: Magnets for the second dimension

If you've ever tried to put several really strong, small cube magnets right next to each other on a magnetic board, you'll know that you just can't do it. What happens is that the magnets always arrange themselves in a column sticking out vertically from the magnetic board. Moreover, it's almost impossible to join several rows of these magnets together to form a flat surface. That's because magnets are dipolar. Equal poles repel each other, with the north pole of one magnet always attaching itself to the south pole of another and vice versa. This explains why they form a column with all the magnets aligned the same way.

Now, scientists at ETH Zurich have managed to create magnetic building blocks in the shape of cubes that - for the first time ever - can be joined together to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

First International Conference on Agrophotovoltaics in August 2020

15.11.2019 | Event News

Laser Symposium on Electromobility in Aachen: trends for the mobility revolution

15.11.2019 | Event News

High entropy alloys for hot turbines and tireless metal-forming presses

05.11.2019 | Event News

 
Latest News

Structure of a mitochondrial ATP synthase

19.11.2019 | Life Sciences

The measurements of the expansion of the universe don't add up

19.11.2019 | Physics and Astronomy

Ayahuasca compound changes brainwaves to vivid 'waking-dream' state

19.11.2019 | Health and Medicine

VideoLinks
Science & Research
Overview of more VideoLinks >>>