Related Experiment Video
Updated: Jul 13, 2026

A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement
Published on: February 22, 2022
[Intensified school sports improve fitness]
1Oberärztin der Abt. für Kardiologie, Herzzentrum der Universität Leipzig. waltherc@medizin.uni-leipzig.de
Abstract:
Several studies performed over the last 20 years have revealed an appreciable decrease in the average time spent daily on physical activity by children and adolescents in Europe. On the other hand, sports and physical activity improve not only motor ability and coordination, but also impact positively on cognitive performance and mental health, and also reduce cardiovascular risks. Relevant associations agree that children should spend an hour a day indulging in moderate to higher-level physical activity. Daily periods of inactivity should be limited to fewer than two hours. Measures aimed at improving mobility should be made available in kindergartens, schools and universities.
More Related Videos
Related Concept Videos
Exercise and Muscle Performance
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...
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be met...
Exercise and Cardiovascular Response
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...
Social Facilitation
Inclusive Fitness
Exercise Stress Test
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

