A study by Politecnico di Milano published in Sensors
Can we use our smartphones without any other peripherals or wearables to accurately extract vital parameters, such as heart beat rate and stress level?
The team led by Professor Enrico Caiani of the Department of Electronics, Information and Bioengineering at Politecnico di Milano has shown that it is possible to do so, using the accelerometers inside a smartphone.
In fact, they can be used to acquire a signal associated with mechanical - cardiac activity, generated by heart's vibrations at every beat, which can be felt by simply placing the telephone on particular parts of the body.
In this study we focussed on positioning of the smartphone on the abdomen, at the belly-button, as part of an application scenario that looks at brief daily acquisition lasting 30 seconds, in a prone position, before getting out of bed in the morning. By suitably processing this signal, measurements can be acquired of the heart beat rate and status of activation of the sympathetic-vagal balance, associated with the stress level.
By means of an experimental protocol, which calls for acquisition for each subject in base conditions and during a stressed state induced by mental calculation, it is possible to check the capacity of the indicators measured by the smartphone to capture the increase in stress, on the one hand, and, on the other hand, to determine the best correspondence of the results with the same observations made using an electrocardiogram taken at the same time.
This study, carried out in collaboration with the team led by Professor Gianfranco Parati of the I.R.C.C.S. Istituto Auxologico Italiano, in the Department of Cardiovascular, Metabolic, and Neurological Sciences at Ospedale San Luca in Milan, was recently published in Sensors, the leading open access, peer-reviewed international magazine, on science and technology for sensors and biosensors.
This result opens new horizons and possibilities for using the smartphone as an instrument readily available, for simple self-monitoring of one's health.
Cristina Perini | EurekAlert!
TU Dresden biologists examine sperm quality on the basis of their metabolism
29.11.2019 | Technische Universität Dresden
Approaching the perception of touch in the brain
27.11.2019 | Max Planck Institute for Human Cognitive and Brain Sciences
Using a clever technique that causes unruly crystals of iron selenide to snap into alignment, Rice University physicists have drawn a detailed map that reveals...
University of Texas and MIT researchers create virtual UAVs that can predict vehicle health, enable autonomous decision-making
In the not too distant future, we can expect to see our skies filled with unmanned aerial vehicles (UAVs) delivering packages, maybe even people, from location...
With ultracold chemistry, researchers get a first look at exactly what happens during a chemical reaction
The coldest chemical reaction in the known universe took place in what appears to be a chaotic mess of lasers. The appearance deceives: Deep within that...
Abnormal scarring is a serious threat resulting in non-healing chronic wounds or fibrosis. Scars form when fibroblasts, a type of cell of connective tissue, reach wounded skin and deposit plugs of extracellular matrix. Until today, the question about the exact anatomical origin of these fibroblasts has not been answered. In order to find potential ways of influencing the scarring process, the team of Dr. Yuval Rinkevich, Group Leader for Regenerative Biology at the Institute of Lung Biology and Disease at Helmholtz Zentrum München, aimed to finally find an answer. As it was already known that all scars derive from a fibroblast lineage expressing the Engrailed-1 gene - a lineage not only present in skin, but also in fascia - the researchers intentionally tried to understand whether or not fascia might be the origin of fibroblasts.
Fibroblasts kit - ready to heal wounds
Research from a leading international expert on the health of the Great Lakes suggests that the growing intensity and scale of pollution from plastics poses serious risks to human health and will continue to have profound consequences on the ecosystem.
In an article published this month in the Journal of Waste Resources and Recycling, Gail Krantzberg, a professor in the Booth School of Engineering Practice...
03.12.2019 | Event News
15.11.2019 | Event News
15.11.2019 | Event News
09.12.2019 | Earth Sciences
09.12.2019 | Information Technology
09.12.2019 | Life Sciences