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Average Heart Rate Values and Ranges for Children of Different Ages

Age Average Heart Rate (beats/min) Heart Rate Range (beats/min)
Birth~ 127.9 88~158
2 days~ 116.5 85~162
8 days~ 146.0 115~172
1 month~ 139.5 111~167
4 months~ 130.0 105~158
7 months~ 124.8 109~154
1 year~ 119.2 85~187
3 years~ 108.8 75~133
4 years~ 100.8 71~133
6 years~ 91.7 68~125
8 years~ 88.9 64~123
11 years~ 82.3 52~115
Boys 12~14 years 77.4 58~102
Girls 12~14 years 87.3 55~109

References

Research Paper Li Zhongzhi, Shen Kunling, Editors-in-Chief. "Handbook of Pediatric Resident Physicians" [M]. Peking Union Medical College Press. 2011
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