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Artificial tactile sensing is a challenging research topic in robotics, motor control, and rehabilitation engineering encompassing multi-disciplinary skills and different technologies. This paper presents the development of a wearable tactile thimble system using MEMS barometric sensors and flexible printed circuit board. Barometric sensors were carefully processed to make them able to transduce contact...
Biomechanical measurements of anticipatory postural adjustments (APAs) at gait initiation were performed in subjects affected by Parkinson's disease and in medication-off condition. Patients were compared with a selected group of healthy control subjects matched by velocity of the first step and comparable initial feet position. The obtained results evidenced alterations in the unloading phase, when...
Anticipatory postural adjustments (APAs) represent a feedforward organization of a coherent set of motor commands (synergistic muscular activities) that are generated in advance with respect to any observable postural change. They are considered fundamental in creating the necessary conditions to produce the forthcoming movement. This is clearly the case of gait initiation, during which the propulsive...
The mechanical energy exchanges of normal subjects during walking have been investigated. Two groups of subjects including healthy children and healthy adults participated in this study. Kinematic data have been captured by a motion analysis system composed of 8 TV-cameras with an acquisition frequency of 50 Hz and retro-reflective markers positioned on main reference points of the body. Based on...
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