Results 41 to 50 of about 3,462,595 (345)
Interaction between Heart Rate and Heart Rate Variability [PDF]
Heart rate variability (HRV) is significantly associated with average heart rate (HR), therefore, HRV actually provides information on two quantities, that is, on HR and its variability. It is difficult to conclude which of these two plays a principal role in the HRV clinical value, or in other words, what is the HR contribution to the clinical ...
openaire +3 more sources
Heart Rate Sharing at the Workplace [PDF]
Augmenting online interpersonal communication with biosignals, often in the form of heart rate sharing, has shown promise in increasing affiliation, feelings of closeness, and intimacy. Increasing empathetic awareness in the professional domain and in the customer interface could benefit both customer and employee satisfaction, but heart rate sharing ...
Valtteri Wikström+6 more
openaire +6 more sources
Behaviour, heart rate, and heart rate variability in pigs exposed to novelty
In the present study, we investigated behavioural responses and determined parameters of heart rate variability (HRV) to elucidate a relative activation of autonomic nervous system (ANS) during baseline (10 min) and in response to potentially stressful ...
Manja Zupan+2 more
doaj +1 more source
Sudden Infant Death Syndrome — the overview of the problem from XXI century
Sudden infant death syndrome (SIDS) is sudden non-violent death of apparently healthy infant with absence of adequate reasons of the death according to the medical history and pathomorphological examination.
L.A. Kravtsova, M.A. Shkolnikova
doaj +2 more sources
Heart rate recovery after exercise: relations to heart rate variability and complexity
Physical exercise is associated with parasympathetic withdrawal and increased sympathetic activity resulting in heart rate increase. The rate of post-exercise cardiodeceleration is used as an index of cardiac vagal reactivation.
M. Javorka+3 more
doaj +1 more source
Heart rate variability in anaesthesiology – narrative review
Heart rate variability (HRV) is a measure that shows the variation in time between consecutive heartbeats – a physiological phenomenon controlled by the autonomic nervous system.
Magdalena Wujtewicz, Radoslaw Owczuk
doaj +1 more source
Algorithm for heart rate extraction in a novel wearable acoustic sensor. [PDF]
Phonocardiography is a widely used method of listening to the heart sounds and indicating the presence of cardiac abnormalities. Each heart cycle consists of two major sounds - S1 and S2 - that can be used to determine the heart rate.
Aguilar-Pelaez, E+3 more
core +1 more source
Heart rate and heart rate variability in infants during olfactory stimulation
Background: Various plant odours have been shown to decrease heart rate and increase parasympathetic nervous activity. However, ‘innate’ autonomic responses without the influences of experience, assumptions and prejudices of odours remains unclear.
Yuko Tsunetsugu, Keita Ishibashi
doaj +1 more source
Heart-Rate Variability—More than Heart Beats?
Heart-rate variability (HRV) is frequently introduced as mirroring imbalances within the autonomous nerve system. Many investigations are based on the paradigm that increased sympathetic tone is associated with decreased parasympathetic tone and vice ...
Gernot Ernst
doaj +1 more source
Heart rate (HR) and HR variability (HRV) infer readiness to perform exercise in athletic populations. Technological advancements have facilitated HR and HRV quantification via photoplethysmography (PPG).
Clint R. Bellenger+4 more
doaj +1 more source