, obtained by M-mode echocardiography and automatically estimated by the cardiac calculation software, declines as gestation progresses and increases during activity, with accelerations of 25 to 40 beats per minute (bpm) of approximately 30 seconds duration.
Number of red cells units transfused, hemodynamic parameters such as cardiac frequency
and mean arterial pressure at admission, and recurrence of AVB were recorded.
The prolongation with more than 450 msec of the QTc interval (QT corrected depending on the cardiac frequency
) exposes to the risk of polymorph ventricular arrhythmia known under the name of peak torsade, with an electrocardiographic aspect of twisting of the QRS complexes morphology along the isoelectric line.
I have verified a number of anthropometric indices such as size, weight and span, a number of physiological indices: respiratory frequency, cardiac frequency
, vital capacity.
The observed cardiac rhythmic characteristics and parameters were: cardiac frequency
, duration and amplitude of P wave, interval PR and QRS duration, amplitude of R wave, interval QT duration, polarity characteristic of T wave, presence or absence of segment ST depression, and the value in grade of QRS mean axis from I and III derivations.
Noting that the cardiac signal is superimposed to the respiratory signal , it is possible to look for the cardiac frequency
The cardiac frequency
was recorded via a heart rate monitor.
This study had the intention to evaluate the cardiac frequency
in response to intermittent progressive tests, T-car and Yo-Yo IRT1, through the determination of the variables associated with the deflection point of the cardiac frequency
throughout the variables determination associated to the deflection point at the cardiac frequency
In the normal fetal heart rate range (110-160 bpm), a time variability of 4 ms corresponds to a cardiac frequency
variability of 0.81 bpm, while a time variability of 2.6 ms corresponds to a cardiac frequency
variability of 0.53 bpm (the values of 0.53 bpm and 0.81 bpm are obtained as follows: 60/(60/110-2.6 ms)-110 = 0.56 bpm and 60/(60/110 - 4.0 ms) - 110 = 0.81 bpm, resp.).
Vallortigara asserted that in contrast, a dog looking to a dog wagging with a bias to the left-and thus showing right-hemisphere activation as if it was experiencing some sort of negative/withdrawal response-would also produce anxious and targeting responses as well as increased cardiac frequency
The effect of EOAs on the isometric contractions and cardiac frequency
in virro was examined.