For physical exercises commonly referred to as "cardio", see aerobic exercise.
Cardiovascular fitness refers to a health-related component of physical fitness that is brought about by sustained physical activity.[1] A person's ability to deliver oxygen to the working muscles is affected by many physiological parameters, including heart rate, stroke volume, cardiac output, and maximal oxygen consumption.[citation needed]
Understanding the relationship between cardiorespiratory fitness and other categories of conditioning requires a review of changes that occur with increased aerobic, or anaerobic capacity. As aerobic/anaerobic capacity increases, general metabolism rises, muscle metabolism is enhanced, haemoglobin rises, buffers in the bloodstream increase, venous return is improved, stroke volume is improved, and the blood bed becomes more able to adapt readily to varying demands. Each of these results of cardiovascular fitness/cardiorespiratory conditioning will have a direct positive effect on muscular endurance, and an indirect effect on strength and flexibility.[2]
To facilitate optimal delivery of oxygen to the working muscles, an individual needs to train or participate in activities that will build up the energy stores needed for sport. This is referred to as metabolic training. Metabolic training is generally divided into two types: aerobic and anaerobic. A 2005 Cochrane review demonstrated that physical activity interventions are effective for increasing cardiovascular fitness.[3]
Cardiovascular fitness is a measure of how well the heart, lungs, and blood vessels can transport oxygen to the muscles during exercise. It is an important component of overall fitness and has been linked to numerous health benefits, including a reduced risk of cardiovascular disease, improved cognitive function, and increased longevity. A study published in the American Journal of Epidemiology found that higher levels of cardiovascular fitness were associated with a lower risk of mortality from all causes, including cardiovascular disease and cancer.[4]
A cardiovascular workout consists of exercises[5] that increases heart rate; a strong cardiovascular system houses more capillaries providing more oxygen to muscle cells.
^Frank Moran. "Glossary of Fitness and Health Terms". Frank Moran. Archived from the original on December 7, 2010. Retrieved December 28, 2010.
^Pate, Russell; Oria, Maria; Pillsbury, Laura; Youth, Committee on Fitness Measures and Health Outcomes in; Board, Food and Nutrition; Medicine, Institute of (2012-12-10), "Health-Related Fitness Measures for Youth: Cardiorespiratory Endurance", Fitness Measures and Health Outcomes in Youth, National Academies Press (US), retrieved 2023-07-28
^Hillsdon, M.; Foster, C.; Thorogood, M. (2005-01-25). "Interventions for promoting physical activity". The Cochrane Database of Systematic Reviews (1): CD003180. doi:10.1002/14651858.CD003180.pub2. ISSN 1469-493X. PMC 4164373. PMID 15674903.
^Kodama, Satoru (2009-05-20). "Cardiorespiratory Fitness as a Quantitative Predictor of All-Cause Mortality and Cardiovascular Events in Healthy Men and Women". JAMA. 301 (19): 2024–2035. doi:10.1001/jama.2009.681. ISSN 0098-7484. PMID 19454641.
^TAYLOR, RYAN (2021-01-25). "30 Minute Cardio Workout at Home - No Equipment Required". AQF Sports Official Blog. Retrieved 2023-06-15.
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