Exercise and cholesterol levels
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Exercise and Cholesterol Levels: Effects on Lipid Profile
Impact of Exercise on Total Cholesterol, Triglycerides, and HDL
Regular physical activity, including both aerobic and resistance exercises, has been shown to significantly improve blood lipid profiles. Studies consistently report that exercise lowers total cholesterol (TC) and triglycerides (TG), while increasing high-density lipoprotein cholesterol (HDL-C) levels in various populations, including healthy women and people with overweight or obesity 1348. Combined exercise training (aerobic plus resistance) appears especially effective for reducing TC and TG, while aerobic exercise alone is particularly beneficial for raising HDL-C 148.
Exercise Intensity and Type: Aerobic, Resistance, and Combined Modalities
Both moderate- and high-intensity exercise programs improve cholesterol profiles, with moderate-intensity exercise significantly increasing HDL-C and reducing LDL-C and TG. High-intensity exercise can provide additional benefits, especially for HDL function and further improvements in lipid profiles 68. Low-impact aerobic exercise, when performed regularly and intensively, is also effective in lowering total cholesterol, making it a cost-effective and accessible intervention 310.
Effects on LDL Cholesterol
The relationship between exercise and low-density lipoprotein cholesterol (LDL-C) is more complex. While many studies show that both low- and moderate-intensity aerobic exercise can reduce LDL-C, the effect is sometimes modest and may depend on individual factors such as baseline cholesterol levels and the presence of dyslipidemia 810. Some reviews suggest that the reduction in LDL-C is not always significant in healthy adults, but more pronounced in those with elevated cholesterol or other risk factors .
Influence of Baseline Health Status and Demographics
Exercise-induced improvements in lipid profiles are generally more pronounced in older and middle-aged adults, people with overweight or obesity, and those with higher baseline cholesterol levels 589. In contrast, younger individuals and those with certain health conditions, such as chronic kidney disease, may experience less significant changes . Men with both high triglycerides and low HDL-C, especially those with abdominal obesity, benefit the most from endurance exercise in terms of raising HDL-C and lowering TG .
Minimum Exercise Volume and Duration
There is evidence that a minimum threshold of exercise is needed to see significant improvements in HDL-C. For example, at least 120 minutes of aerobic exercise per week or an energy expenditure of 900 kcal per week is associated with meaningful increases in HDL-C. Longer exercise sessions are particularly effective, with each additional 10 minutes per session linked to further increases in HDL-C .
Quality of Evidence and Recommendations
While the majority of studies and meta-analyses support the positive effects of exercise on cholesterol levels, some reviews highlight variability in study quality and potential biases. For instance, only a few high-quality meta-analyses confirm the benefits of specific exercise types, such as yoga, on HDL-C . Overall, the evidence strongly supports regular physical activity as a key non-pharmacological strategy for improving cholesterol and reducing cardiovascular risk, but more high-quality research is needed for certain populations and exercise modalities 29.
Conclusion
Exercise—whether aerobic, resistance, or a combination—consistently improves cholesterol levels by lowering total cholesterol and triglycerides and increasing HDL-C, especially in adults with elevated cholesterol or additional risk factors. Moderate- to high-intensity and longer-duration exercise sessions yield the greatest benefits. While the effect on LDL-C can vary, regular physical activity remains a cornerstone for optimizing lipid profiles and supporting cardiovascular health.
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