Definition of rector for English Language Learners. : 1  a priest or minister who is in charge of a church or parish. : 2  a person who is in charge of a university or school.
Cardiac Cycle. in Physiology. Cardiac events appearing from the beginning of one heart beat to the beginning of next heart beat and repeating themselves successively. â¢ Cardiac cycle time (H.Rate = 75/min) : 0.8 sec. Systole: 0.27 sec. Diastole: 0.53 sec.
How can i Calculate heart rate from R-R interval? heart rate in beats-per-minute can be calculated by 60 (number of seconds in a minute) divided by the average R-R inteval. heart rate = 60 / R-R interval Note: R-R i â¦ nterval needs to be converted into seconds.