The normal range and determinants of the intrinsic heart rate in man

摘要: Normal standards for the intrinsic heart rate (IHR) were measured in 432 healthy adult subjects aged 16 to 70 years. At rest, with normal body temperature, IHR was highly reproducible. In different subjects, age only important determinant. Differences between individuals may correspond differences functional capacity of myocardium, whether determined genetically, by age, or disease.