Diastolic time – frequency relation in the stress echo lab: filling timing and flow at different heart rates

Table 5 Heart rate and total cardiac cycle duration

HR b.p.m	50	60	70	80	90	100	110	120	130	140	150	160	170	180
Cardiac cycle length (msec)	1200	1000	857	750	666	600	545	500	463	429	400	375	353	333

The total cardiac cycle duration is algebraically dependent on the heart rate [= 60,000 msec/heart rate] with fixed values totally independent from the increasing heart rate stress type.

ISSN: 1476-7120