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Related Concept Videos

Exercise Stress Test01:26

Exercise Stress Test

650
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
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Increased pulse rate01:17

Increased pulse rate

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Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
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Factors Influencing Heart Rate01:30

Factors Influencing Heart Rate

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The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
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Exercise and Cardiac Output01:17

Exercise and Cardiac Output

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Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be...
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Cardiac Output I:Effect of Heart Rate on Cardiac Output01:19

Cardiac Output I:Effect of Heart Rate on Cardiac Output

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Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
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Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

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Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
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Related Experiment Video

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Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
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Heart Rate Changes Before, During, and After Treadmill Walking Exercise in Normal Dogs.

Sarah A Shull1, Sarah K Rich1, Robert L Gillette2

  • 1College of Veterinary Medicine, Michigan State University, East Lansing, MI, United States.

Frontiers in Veterinary Science
|April 29, 2021
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Summary

Heart rate (HR) monitoring in dogs during treadmill exercise (TE) is crucial for rehabilitation. Both HR monitors and Holter monitors accurately capture exercise-induced HR increases, guiding effective therapy.

Keywords:
auscultationcardiovasculardogfitnessholtermonitoringrehabilitation

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Area of Science:

  • Veterinary Medicine
  • Canine Rehabilitation
  • Cardiovascular Physiology

Background:

  • Heart rate (HR) changes in dogs indicate physiological states like conditioning, fear, pain, and anticipation.
  • Routine HR assessment is lacking in veterinary rehabilitation, hindering optimal protocol development and post-operative care.
  • Understanding HR responses during specific exercises is vital for tailoring rehabilitation programs.

Purpose of the Study:

  • To assess canine heart rate (HR) during treadmill exercise (TE) walking.
  • To compare the accuracy and agreement of three HR measurement techniques: auscultation, HR monitor, and Holter monitor.
  • To establish expected HR increases during TE and evaluate post-exercise recovery patterns.

Main Methods:

  • Eight healthy, large-breed adult dogs participated in the study.
  • HR was simultaneously recorded using auscultation, an HR monitor, and a Holter monitor during rest, pre-TE, TE (walk), and post-TE (15 and 60 seconds).
  • Statistical analyses included correlations, Bland-Altman analyses, and repeated measures ANOVA.

Main Results:

  • Treadmill exercise (TE) during walking significantly increased HR, with elevations not consistently reflected in post-exercise measurements.
  • Auscultation was not feasible during the walking phase of TE.
  • Significant moderate-to-strong correlations were found among all HR monitoring methods, indicating good agreement between devices.

Conclusions:

  • Both HR monitors and Holter monitors effectively capture exercise-induced HR increases in dogs during TE.
  • These devices can guide TE regimens, optimizing training effectiveness and minimizing injury risk.
  • Further research is needed to validate findings in diverse canine populations beyond healthy, large breeds.