Heart Rate
Original Editor - Lucinda hampton
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Introduction[edit | edit source]
Heart rate is the number of heartbeats per minute. The heart rate is based on the number of contractions of the ventricles (the lower chambers of the heart).
- The heart rate may be too fast (tachycardia) or too slow (bradycardia), types of Heart Arrhythmias
- The pulse rate is a bulge of an artery from waves of blood that course through the blood vessels each time the heart beats. The pulse is often taken at the wrist to estimate the heart rate"[1].
Normal resting heart rate (RHR) is an indicator of both general health and physical health. Values can range from anywhere between 60-100 beats per minute (bpm). RHR value decreases as cardiovascular fitness increases[2].
A healthy heart is not a metronome, the oscillations being complex and non-linear. Mathematical chaos is a good way to describe a healthy heart’s beat-to-beat fluctuations. This variability provides the flexibility to rapidly cope with an uncertain and changing environment, whilst maintaining homeostasis.[3]
Resting Heart Rate[edit | edit source]
Normal resting heart rate (RHR) is an indicator of both general health and general health. Values can range from anywhere between 60-100 beats per minute (bpm). RHR value decreases as cardiovascular fitness increases as shown in tables below[2].
Resting Heart Rate for MEN
Age | 18-25 | 26-35 | 36-45 | 46-55 | 56-65 | 65+ |
---|---|---|---|---|---|---|
Athlete | 49-55 | 49-54 | 50-56 | 50-57 | 51-56 | 50-55 |
Excellent | 56-61 | 55-61 | 57-62 | 58-63 | 57-61 | 56-61 |
Good | 62-65 | 62-65 | 63-66 | 64-67 | 62-67 | 62-65 |
Above Average | 66-69 | 66-70 | 67-70 | 68-71 | 68-71 | 66-69 |
Average | 70-73 | 71-74 | 71-75 | 72-76 | 72-75 | 70-73 |
Below Average | 74-81 | 75-81 | 76-82 | 77-83 | 76-81 | 74-79 |
Poor | 82+ | 82+ | 83+ | 84+ | 82+ | 80+ |
Resting Heart Rate for WOMEN
Age | 18-25 | 26-35 | 36-45 | 46-55 | 56-65 | 65+ |
---|---|---|---|---|---|---|
Athlete | 54-60 | 54-59 | 54-59 | 54-60 | 54-59 | 54-59 |
Excellent | 61-65 | 60-64 | 60-64 | 61-65 | 60-64 | 60-64 |
Good | 66-69 | 65-68 | 65-69 | 66-69 | 65-68 | 65-68 |
Above Average | 70-73 | 69-72 | 70-73 | 70-73 | 69-73 | 69-72 |
Average | 74-78 | 73-76 | 74-78 | 74-77 | 74-77 | 73-76 |
Below Average | 79-84 | 77-82 | 79-84 | 78-83 | 78-83 | 77-84 |
Poor | 85+ | 83+ | 85+ | 84+ | 84+ | 84+ |
Maximum Heart Rate[edit | edit source]
Age-predicted maximal heart rate (HRmax) is an essential measure for healthcare professionals in determining cardiovascular response to exercise testing, exertion, and prescription[5]. It is possible for a maximum heart rate to reach a dangerously high number if a person is in poor condition or the exercise is too strenuous.
The traditional formula for determining HRmax is "220 minus age", can underestimate HRmax by up to 40 beats per minute in seniors. In fact, the method is inaccurate already at an age of 30–40 years, and gets more inaccurate the older you are.[6]
Maximum heart rate calculation has changed some in recent years as the need to adjust the calculation for older individuals surfaced. Although multiple age predicted HRmax prediction equations have been validated for specific populations, the accuracy of each within a general population is still in debate. A common formula for calculating maximum heart rate is: MHR = 208 – 0.7(age).[7][5]eg 57 year old female: 208 - (57 x .7) equals 168.1.
Target heart rate is a range of numbers that reflect how fast the heart should be beating during exercise. Target heart rate during moderate intensity activities is about 50-70% of maximum heart rate, while during vigorous physical activity it’s about 70-85% of maximum.[8]
A general guide is shown below.
Age | Target HR Zone 50-85% | Average Maximum Heart Rate, 100% |
---|---|---|
20 years | 100-170 beats per minute (bpm) | 200 bpm |
30 years | 95-162 bpm | 190 bpm |
35 years | 93-157 bpm | 185 bpm |
40 years | 90-153 bpm | 180 bpm |
45 years | 88-149 bpm | 175 bpm |
50 years | 85-145 bpm | 170 bpm |
55 years | 83-140 bpm | 165 bpm |
60 years | 80-136 bpm | 160 bpm |
65 years | 78-132 bpm | 155 bpm |
70 years | 75-128 bpm | 150 bpm |
References[edit | edit source]
- ↑ Medicinenet Definition of heart rate Available:https://www.medicinenet.com/heart_rate/definition.htm (accessed 20.2.2022)
- ↑ 2.0 2.1 Medicine net What is a good resting heart rate Available:https://www.medicinenet.com/what_is_a_good_resting_heart_rate_by_age/article.htm (accessed 20.2.2022)
- ↑ Shaffer F, Ginsberg JP. An overview of heart rate variability metrics and norms. Frontiers in public health. 2017:258. Available:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5624990/ (accessed 20.2.2022)
- ↑ Top end sports resting heart rate table Available: https://www.topendsports.com/testing/heart-rate-resting-chart.htm(accessed 20.2.2022)
- ↑ 5.0 5.1 Shookster D, Lindsey B, Cortes N, Martin JR. Accuracy of commonly used age-predicted maximal heart rate equations. International journal of exercise science. 2020;13(7):1242.Available:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7523886/ (accessed 21.2.2022)
- ↑ NTNU Max heart rate calculator Available: https://www.ntnu.edu/cerg/hrmax#Test%20yourself(accessed 21.2.2022)
- ↑ Work place MHR Available: https://www.workplacetesting.com/definition/799/maximum-heart-rate-mhr(accessed 21.2.2022)
- ↑ Heart org Target Heart Rates Chart Available: https://www.heart.org/en/healthy-living/fitness/fitness-basics/target-heart-rates(accessed 21.2.2022)