This review examines the influence on heart rate variability (HRV) indices in athletes from
training status, different types of exercise training, sex and ageing, presented from both …

The heart-rate dynamics are one of the most analyzed physiological interactions. Many
mathematical methods were proposed to evaluate heart-rate variability. These methods …

Characteristic patterns of variation over time, namely rhythms, represent a defining feature of
complex systems, one that is synonymous with life. Despite the intrinsic dynamic …

The mouse is the animal model principally used to study biological processes in mammals.
The mutation, overexpression or knockout of one or several genes can provide insight into …

Multiple organ dysfunction syndrome: Exploring the paradigm... : Critical Care Medicine
Multiple organ dysfunction syndrome: Exploring the paradigm of complex nonlinear systems …

Background Non‐linear measures of heart rate variability (HRV) may provide new
opportunities to monitor cardiac autonomic regulation during exercise. In healthy individuals …

The electrocardiogram is a representative signal containing information about the condition
of the heart. The shape and size of the P-QRS-T wave, the time intervals between its various …

Rhythmic changes of blood pressure, heart rate, and other cardiovascular measures have
drawn the attention of several investigators, since these oscillations can shed light onto the …

A mathematical model of short-term cardiovascular regulation is used to investigate how
heart period variability reflects the action of the autonomic regulatory mechanisms (vagal …

Previous investigations on arithmetic stress with verbalization showed that spectral
measures of heart rate variability (HRV) did not assess changes in autonomic modulation …