What is the average heart rate for infants between 1-12 months?

The average heart rate for infants between 1-12 months is typically between 120 and 160 beats per minute. This range reflects the physiological characteristics of infants, who generally have higher metabolism and lower stroke volume compared to older children and adults. Infants' faster heart rates support their rapid growth and energy needs.

While 80-140 beats per minute may represent heart rates for different age groups or specific health conditions, it does not accurately capture the average heart rate for infants in this age range. The other ranges mentioned also do not encompass the expected average for infants; therefore, identifying the most appropriate range is essential for understanding normal infant physiology and monitoring their health.