Monitoring Subjective Perception and Physiological State of Athletes or Patients in Real-Time using a Mobile Phone

1 Pattern Recognition Lab, University of Erlangen-Nuremberg, Martensstr. 3, 91058 Erlangen, Germany Human Performances Lab, Faculty of Biomechanics, University of Calgary, Canada Department of Psychology, University of Koblenz-Landau, Germany adidas innovation team (ait.), adidas AG, Scheinfeld, Germany *Corresponding author: [email protected] Abstract We present a lightweight, non-hindering and highly mobile real-time monitoring system for surveying patients or athletes while performing outdoor activities, e.g. sports. Monitoring athletes or patients while performing outdoor activities is of interest in biomechanics, sport research and rehabilitation. We implemented the surveying application with Java ME on a standard cell phone with GPS and a Bluetooth headset. The system is capable of recording real-time information about the physiological state of the user, his GPS position and speed. At the same time it can query the subjective perception of the user by asking questions via the headset. Feedback about the usability of the system was collected in three psychological studies, showing the high user acceptance and reliability of the system. The collected data was visualized with GERVIT using Google Earth, incorporating the subjective user state into the visualization.