What is it about?
High cardiac workload predicts heart failure and other heart diseases. We found that adolescents who accumulate high levels of sedentary behaviour and low levels of physical activity from childhood have increased heart strain. In light of these findings, increasing moderate and vigorous physical activity from childhood onwards is particularly important in preventing heart diseases.
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Why is it important?
Youth spend nine to ten hours a day being sedentary, and only one in ten adolescents accumulated 60 minutes of daily moderate to vigorous physical activity. These are worrying figures. Our results emphasise the importance of increasing physical activity, especially moderate and vigorous activity, reducing sedentary behaviour, and preventing overweight from childhood to prevent heart diseases. Thus, high levels of daily moderate to vigorous physical activity should be a normal part of childhood and adolescence as it improves heart health, but also general well-being.
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This page is a summary of: Accumulating Sedentary Time and Physical Activity From Childhood to Adolescence and Cardiac Function in Adolescence, Journal of the American Heart Association, March 2024, Wolters Kluwer Health,
DOI: 10.1161/jaha.123.031837.
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