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Remote Sensing Technologies for Physiotherapy Assessment

The paper presents a set of remote, unobtrusive sensing technologies that can be used in upper and lower limbs rehabilitation monitoring. The advantages of using sensors based on microwave Doppler radar or infrared technologies for
physiotherapy assessment are discussed. These technologies allow motion sensing at distance from monitored subject,
reducing thus the discomfort produced by some wearable technologies for limbs movement assessment. The microwave
radar that may be easily hidden into environment by nonmetallic parts allows remote sensing of human motion, providing
information on user movements characteristics and patterns.
The infrared technologies – infrared LEDs from Leap-Motion,infrared laser from Kinect depth sensor, and infrared thermography can be used for different movements’ parameters evaluation. Visible for users, Leap-motion and Kinect sensors assure higher accuracy on body parts movements’ detection at low computation load. These technologies are commonly used for virtual reality (VR) and augmented reality (AR) scenarios, in which the user motion patterns and the muscular activity might be analyzed. Thermography can be employed to evaluate the muscular loading. Muscular activity during movements training in physiotherapy can be estimated through skin temperature measurement before and after physical training. Issues related to the considered remote sensing technologies such as VR serious game for motor rehabilitation, signal processing and experimental results associated with microwave radar, infrared sensors and thermography for physiotherapy sensing are included in the paper.


Octavian Postolache    
Instituto de Telecomunicacoes/ISCTE-IUL


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