Heart, lungs, and diaphragm during: (a) inhalation; (b) exhalation.
![Heart, lungs, and diaphragm during: (a) inhalation; (b) exhalation.](https://www.researchgate.net/publication/359111805/figure/fig1/AS:1139015818461185@1648573941588/Heart-lungs-and-diaphragm-during-a-inhalation-b-exhalation-Illustration-based-on.png)
Download scientific diagram | Heart, lungs, and diaphragm during: (a) inhalation; (b) exhalation. Illustration based on magnetic resonance imaging (MRI) of natural chest movement [13]. from publication: Breathing Rate Estimation from Head-Worn Photoplethysmography Sensor Data Using Machine Learning | Breathing rate is considered one of the fundamental vital signs and a highly informative indicator of physiological state. Given that the monitoring of heart activity is less complex than the monitoring of breathing, a variety of algorithms have been developed to estimate | Photoplethysmography, Machine Learning and Motion | ResearchGate, the professional network for scientists.
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