In the present investigation, during the first two minutes of recovery ET was about 70-75% of the cardiac cycle
total duration (see Figure 2, panel C and D).
d) The spatially averaged value and the maximum value of blood age over 5 cardiac cycles
All measurements were performed from three cardiac cycles
and then averaged.
Net flow during the cardiac cycle
is zero (Figs 2a - d and 3a - d).
Blood viscosity rises and falls from one extreme to the other with every cardiac cycle
- much like blood pressure.
Data were analyzed over five consecutive cardiac cycles
for each embryo, and heart rate (beats per min) was determined from the interval of cardiac cycles
Most SCN5A mutations causing arrhythmia produce channels that continue to operate late in the cardiac cycle
when normal channels are silent; such late activity is a substrate for chaotic rhythms and sudden death," the investigators said (J.
If a ball hits a student in the right spot at the right time in the cardiac cycle
, sudden cardiac arrest may follow.
It is largely the result of the exquisite timing of the blow during a narrow window within the repolarization phase of the cardiac cycle
, 15 to 30 milliseconds prior to the peak of what is called the heart's T-wave.
The cardiac cycle
is a pattern of events exhibited during each beat of the heart.
Blood pressure varies constantly within the cardiac cycle
of contraction and relaxation of the heart and is also affected by the level of physical exertion, anxiety, stress, emotion and other factors.
It is postulated that in order for a life threatening arrhythmia to occur, the blunt trauma must come during "the electrically vulnerable" period of the cardiac cycle