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Contents loading... Editors loading... Categories loading... When refering to evidence in academic writing, you should always try to reference the primary (original) source. That is usually the journal article where the information was first stated. In most cases Physiopedia articles are a secondary source and so should not be used as references. Physiopedia articles are best used to find the original sources of information (see the references list at the bottom of the article). If you believe that this Physiopedia article is the primary source for the information you are refering to, you can use the button below to access a related citation statement. 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).
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
Resting Heart Rate for WOMEN
[4] 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.
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Which diagnostic technique records the patients heart rates and rhythms over a 24 hr period?Twenty-four hour Holter monitoring is a continuous test to record your heart's rate and rhythm for 24 hours. You wear the Holter monitor for 12 to 48 hours as you go about your normal daily routine.
Which diagnostic technique records the patient's heart rates and rhythms?An electrocardiogram (ECG or EKG) records the electrical signal from the heart to check for different heart conditions. Electrodes are placed on the chest to record the heart's electrical signals, which cause the heart to beat.
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