Saumya Pandey
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Written By: saumya pandey | Updated : December 18, 2023 11:01 AM IST
Key to preventing elevated cholesterol.
The study reveals that increased sedentary time during childhood can elevate cholesterol levels significantly, potentially leading to heart problems and premature death. Data from the Children of the 90s study, involving 792 children aged 11, indicates a 67% increase in cholesterol levels by their mid-twenties due to accumulated sedentary time. Elevated cholesterol and dyslipidemia during childhood and adolescence have been linked to health issues, including premature death in the mid-forties and heart problems such as subclinical atherosclerosis and cardiac damage in the mid-twenties. This underscores the importance of addressing lifestyle factors early in life to mitigate long-term health risks.
Contrary to traditional recommendations, the study emphasizes that light physical activity, including activities like long walks, house chores, or slow dancing, is up to five times more effective than moderate-to-vigorous physical activity in promoting healthy hearts and reducing inflammation in young populations. The research suggests that light physical activity may be key to preventing elevated cholesterol and dyslipidemia.
The World Health Organization's current guidelines recommend children accumulate an average of 60 minutes of moderate-to-vigorous physical activity daily, with limited guidance on light physical activity. The study calls for a reevaluation of guidelines, advocating for greater emphasis on light physical activity from childhood. This shift is seen as crucial in light of the study's findings on its effectiveness in preventing health issues.
The research collected data through accelerometers measuring sedentary time, light physical activity, and moderate-to-vigorous physical activity at ages 11, 15, and 24. Various cholesterol measures, body fat mass, muscle mass, blood glucose, insulin, and C-reactive protein were also assessed. The 13-year follow-up revealed a significant increase in sedentary time, a decrease in light physical activity, and stable moderate-to-vigorous physical activity.
The average increase in total cholesterol observed during the follow-up was 0.69 mmol/l. Notably, an average of four-and-a-half hours a day of light physical activity throughout childhood to young adulthood causally decreased total cholesterol by (-0.53 mmol/l). Moderate-to-vigorous physical activity, although associated with slightly reduced total cholesterol, had its effects diminished by factors like increased body fat mass.
An additional study led by the same researcher highlights that light physical activity may also reverse childhood obesity linked to increased sedentary time. Sedentary time contributed seven to ten percent of total fat mass gained during growth, whereas light physical activity decreased fat mass gain by 9.5 to 15 percent. Moderate-to-vigorous physical activity showed a smaller impact on reducing fat mass.
In summary, the research underscores the long-term health implications of childhood sedentary behavior, advocates for the importance of light physical activity, and calls for a reevaluation of current physical activity guidelines for children.
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