Related Experiment Video
Updated: Dec 31, 2025
07:23
Improved Rodent Model of Myocardial Ischemia and Reperfusion Injury
Published on: March 7, 2022
7.0K
Mechanisms Involved in Cardioprotection Induced by Physical Exercise
Claudia Penna1,2, Giuseppe Alloatti3, Antonio Crisafulli4
1National Institute for Cardiovascular Research (INRC), Bologna, Italy.
Antioxidants & Redox Signaling
|January 2, 2020
Summary
Regular exercise protects the heart from damage by triggering adaptive responses, mimicking ischemic preconditioning. These exercise-induced cardioprotective effects involve multiple cellular pathways, offering benefits beyond cardiovascular disease risk reduction.
Area of Science:
- Cardiovascular Physiology
- Exercise Science
- Molecular Cardiology
Background:
- Regular exercise training mitigates myocardial damage from acute ischemia/reperfusion (I/R).
- Exercise can induce ischemic preconditioning and activate kinase cascades for cardioprotection, even without ischemia.
- Exercise offers cardiovascular benefits by conditioning the heart through physiological stress responses.
Purpose of the Study:
- To explore the mechanisms behind exercise-induced cardioprotection.
- To understand how exercise triggers adaptive cellular responses in the heart.
- To investigate the role of exercise in preventing chemotherapy-induced cardiotoxicity.
Main Methods:
- Review of animal and human studies on exercise and heart health.
- Analysis of cellular and molecular pathways involved in exercise-induced preconditioning.
- Examination of factors like nitric oxide, opioids, and ATP-dependent potassium channels.
Main Results:
- Exercise stimulates anti-radical defense and nitric oxide production.
- Opioids, myokines, and ATP-dependent potassium channels are implicated in exercise-induced cardioprotection.
- These mechanisms may also protect against chemotherapy-related cardiotoxicity.
Conclusions:
- Exercise acts as a physiological stressor, inducing a protective cardiac phenotype.
- While evidence supports exercise's cardioprotective role, underlying mechanisms require further elucidation.
- Precise exercise prescriptions are needed for patients at risk of myocardial infarction or undergoing chemotherapy.
Keywords:
cardioprotectioncardiotoxicityconditioning pathwaysheartischemia/reperfusion injuryremote preconditioningMore Related Videos
Related Concept Videos
01:20Exercise and Cardiovascular Response
3.8K
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...
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...
3.8K
01:17Exercise and Cardiac Output
1.7K
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...
Sustained exercise increases the muscles' oxygen demand, which can be...
1.7K
01:29Pathophysiology of Cardiac Performance
1.3K
Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
1.3K
01:17Pathophysiology of Heart Failure
2.6K
Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
2.6K
01:29Heart Failure II: Pathophysiology
612
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
612
01:27Exercise and Muscle Performance
2.2K
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...
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...
2.2K