Schwechat, Austria


Schwechat, Austria
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Jagos H.,CEIT RALTEC | Oberzaucher J.,CEIT RALTEC | Reichel M.,Technikum Wien | Zagler W.L.,Vienna University of Technology | Hlauschek W.,CEIT RALTEC
Procedia Engineering | Year: 2010

In order to perform long-term, low-effort gait analysis an instrumented shoe insole, equipped with an embedded data processing system, a variety of sensors and a wireless data transmission module has been developed. By using specially developed signal fusion algorithms, the sensor's raw data, like pressure, 3D tilt and acceleration, is processed to provide information about the user's gait or moving behaviour. This shoe insole will also form the basis of an "easy to use" balance training system for older people, in order to help decreasing their risk of falling. A set of early prototypes, in the form of two pairs of self-designed and crafted instrumented shoe insoles, has already been developed. For the validation of their functionality a small series of tests, with five users, already took place. A specific test battery was created, consisting of ten tasks, where the stability of gait and coordinative skills were observed. The tasks were compiled from state-of-the-art mobility test and fall assessment strategies. The tests should, on the one hand, prove the stability of the hardware (to endure such testing), the reliability of the wireless connection and should at the same time show, if the procedure of walking can be reproduced from the gathered data. On the other hand these tests were used for gathering gait data from different subjects, which will be used in the future for the training of classification algorithms. Furthermore there is the opportunity that such a wearable system can be used for sophisticated running analysis with qualitative parameters. By logging and/or wirelessly transmitting information about pressure distribution, the course of e.g. the COP and the pitch angle as well as quantitative parameters like time of action, cadence and the number of steps e.g. an activity protocol can be created.

Werner K.,CEIT RALTEC | Oberzaucher J.,CEIT RALTEC | Panek P.,CEIT RALTEC | Panek P.,Vienna University of Technology | And 2 more authors.
Assistive Technology Research Series | Year: 2011

Objective. It is commonly known that older people have different requirements concerning the interfaces of ICT-solutions than other user groups. In this context the objective was to develop an ICT-based user interface meeting the needs of older people that can easily be applied to other applications. A strong participatory design approach and testing in real user environments was implemented to achieve this. Main Content. In a first step the aim was to design an easy to use video telephone system. By the use of paper mockups, focus groups and single user discussions a group of 15 seniors was involved in several steps in the planning and development of this device. First ideas how such a device could look like, what functionalities should be included and what are important issues to consider during development, were discussed. Based on those discussions a first functional prototype was developed and tested with a group of seniors. Methods like thinking aloud, video analysis and action logging were used to identify problems and inadequatenesses, which formed a base for refinements and updates of the prototype for the final tests in real user environments. The overall feedback about the simplicity and intuitivity of the deployed user interface was very positive. Therefore it was decided to extend the prototype with functionalities applicable in a smart home environment. It was enhanced with a simple web browser, a remote control for different devices like TV or radio and an alarm button that establishes a call in case the user needs help. This user interface was successfully tested in eleven homes over a total period of one and a half years. Results. The users in both the videophone and the smart home study reported that they had no problems at all using the interface and enjoyed the simplicity of using the provided features. All elements were large enough, readability was high, feedback on user input was good and "it was not possible to make any mistakes". Nearly all of them had no previous experience with computers or similar products and were surprised that they learned so fast using "such a complex device". Conclusion. It showed that by involving users throughout the whole design process, it was possible to develop a user interface that can easily be used by older people and people who have never been using a computer before. The smart home user interface now even works as a basis for the GUI of an ICT PSP funded project where it is used by more than 300 seniors in five different European countries. © 2011 The authors and IOS Press. All rights reserved.

Oberzaucher J.,CEIT RALTEC | Jagos H.,CEIT RALTEC | Zodl C.,CEIT RALTEC | Hlauschek W.,CEIT RALTEC | And 2 more authors.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2010

Falls among the older population are one of the most common causes for injuries, frailty and for morbidity. Fall incidents have various reasons and are often related to decreased mobility and hence an increasing fall risk could be detected in time. The objective of this paper is to show results and future prospects of the funded project "vitaliSHOE" and in detail of an automated multi-sensor-based method to determine fall risk indicators in older people's gait and body movements. © 2010 Springer-Verlag Berlin Heidelberg.

Werner F.,CEIT Raltec | Krainer D.,CEIT Raltec | Oberzaucher J.,Carinthia University of Applied Sciences | Werner K.,CEIT Raltec
Assistive Technology Research Series | Year: 2013

According to recent studies a strength of socially assistive robots (SARs) is the ability to motivate users to perform tasks in a multimodal manner. Within this paper the evaluation of a SAR based prototype for support of physical therapy of older users at home is described. By performing a user study with a training system consisting of a social assistive robot (NAO) in combination with the Microsoft Kinect, the acceptance of human robot interaction (HRI) within the field of physical training as well as the impact on user motivation was evaluated. Results regarding motivational abilities of a SAR and the user acceptance towards the system are given. © 2013 The authors and IOS Press. All rights reserved.

Werner F.,CEIT Raltec | Krainer D.,CEIT Raltec
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2013

Training support and motivation to conduct physical training enhances the efficiency of training at home. A robotic trainer is proposed to support physical training by using its physical presence to provide exercise demonstration, feedback and motivation. A pre-pilot study with 14 potential end users was conducted to evaluate the technical system, user motivation and acceptance. Early results regarding the motivational abilities and the user acceptance towards the system are given. © Springer International Publishing 2013.

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