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Related Concept Videos

Exercise Stress Test01:26

Exercise Stress Test

775
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
775
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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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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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 Muscle Performance01:27

Exercise and Muscle Performance

2.1K
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
2.1K
Cardiac Output I:Effect of Heart Rate on Cardiac Output01:19

Cardiac Output I:Effect of Heart Rate on Cardiac Output

2.0K
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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Related Experiment Video

Updated: Dec 2, 2025

A Rapidly Incremented Tethered-Swimming Maximal Protocol for Cardiorespiratory Assessment of Swimmers
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A Rapidly Incremented Tethered-Swimming Maximal Protocol for Cardiorespiratory Assessment of Swimmers

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Moderators of Perceived Effort in Adolescent Rowers During a Graded Exercise Test.

Gerd Schmitz1

  • 1Institute of Sports Science, Leibniz University Hannover, 30167 Hannover, Germany.

International Journal of Environmental Research and Public Health
|November 5, 2020
PubMed
Summary

Adolescents

Area of Science:

  • Sports Science
  • Cognitive Psychology
  • Adolescent Development

Background:

  • Physical activity enhances mental health through self-regulation.
  • Self-regulation in sports involves rating of perceived effort (RPE).
  • Adolescents exhibit lower RPE competencies than adults, potentially due to developmental factors.

Purpose of the Study:

  • To investigate the relationship between basic cognitive competencies and RPE in adolescents.
  • To explore the role of cognitive development in RPE accuracy during exercise.
  • To understand how cognitive factors influence self-regulation in young athletes.

Main Methods:

  • A sample of 12 adolescent rowers completed cognitive tests.
  • Participants performed a graded exercise test on a rowing ergometer.
Keywords:
adolescencecognitionmental healthperceived exertionrowing

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Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol
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Conducting Maximal and Submaximal Endurance Exercise Testing to Measure Physiological and Biological Responses to Acute Exercise in Humans
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  • Continuous RPE ratings were collected alongside objective physiological measures.

    • Main Results:

    • Objective exercise load and subjective RPE showed high correlations (rho = 0.95-0.99).
    • Individual differences in mental speed and spontaneous flexibility moderated the accuracy of RPE.
    • Cognitive competencies significantly influenced conscious load perception.

    Conclusions:

    • Basal cognitive competencies are crucial for accurate RPE in adolescents.
    • Cognitive regulation abilities appear to be a key factor in RPE development.
    • Regular participation in sports may enhance RPE competencies by improving cognitive regulation.