Abstract-The assessment of the perceived exertion during physical activity can be a valuable addition to a healthy training. Modern smartwatches provide a good opportunity to asses the perceived exertion, but entering information is quite challenging due to the very small displays. In this paper, we present an evaluation of five different input methods for entering the perceived exertion on the Borg-RPE scale on smartwatches. Our evaluation shows that speech input is inappropriate for entering the rating while using ranges is promising.
The heart rate is an objective parameter indicating the current physical activity. Displaying it to the user will help her or him to gain awareness of the physical load during certain activities. Current systems do not use the sense of touch to display the actual heart rate. Using the sense of touch has been shown to be potentially less distracting than using other senses in certain situations. In this paper we describe a system which displays the heart rate of the user using the sense of touch. We conducted a user study in the field with ten participants to collect qualitative and quantitative data, which serves as a guideline for the future improvement of such systems.
Interpersonal social interaction, building relationships and the communication with others are key needs of every human being. In particular, people who are suffering from a serious illness will often experience a strong desire to communicate how they feel, their worries and sorrows, or important experiences to gain support from people they trust like friends & relatives. In this work we discuss the requirements for the design of unobtrusive technologies to support the communication between patients and their relatives. We also present design concepts and prototypes based on these requirements. These devices are especially useful when illness inhibits the patient from using conventional methods of communication or if the patient doesn't wish to burden their loved ones with the depth of intimacy they crave.
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