The Exercise-Cholesterol Link
Both meal programs provide foods that are easy to prepare and do not take a long time to cook. The support is mostly in FAQ question-and-answer format with nutrition and exercise advice provided as well. We work with leading brands to create outstanding interactive experiences. Thank you for the feedback. Any busy person who does not have time to prepare their own meals would benefit from having frozen and other pre-packaged meals and snacks delivered to their home. D' kit that offers individuals with or at risk of type 2 diabetes.
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Part of the confusion about the effect of exercise on cholesterol stems from the fact that most early cholesterol studies focused on both exercise and dietary changes, making it hard to tease out which of these factors was actually making the difference.
But recent studies have more carefully examined the effect of exercise alone, making it easier to evaluate the relationship between exercise and cholesterol. Researchers now believe there are several mechanisms involved. First, exercise stimulates enzymes that help move LDL from the blood and blood-vessel walls to the liver.
From there, the cholesterol is converted into bile for digestion or excreted. So the more you exercise, the more LDL your body expels. Second, exercise increases the size of the protein particles that carry cholesterol through the blood. The combination of protein particles and cholesterol are called "lipoproteins;" it's the LDLs that have been linked to heart disease.
Some of those particles are small and dense; some are big and fluffy. Exactly how much exercise is needed to lower cholesterol has been a matter of some debate. In general, most public health organizations recommend, at a minimum, 30 minutes per day of moderate to vigorous exercise , such as walking, jogging , biking, or gardening.
But a study by researchers at Duke University Medical Center found that more intense exercise is actually better than moderate exercise for lowering cholesterol. In a study of overweight , sedentary people who did not change their diet, the researchers found that those who got moderate exercise the equivalent of 12 miles of walking or jogging per week did lower their LDL level somewhat.
But the people who did more vigorous exercise the equivalent of 20 miles of jogging a week lowered it even more. The people who exercised vigorously also raised their levels of high-density lipoprotein HDL -- the "good" kind of lipoprotein that actually helps clear cholesterol from the blood.
According to Kraus's findings, however, even though moderate exercise was not as effective in reducing LDL or increasing HDL, it did keep cholesterol levels from rising. Just how much of an effect exercise has on cholesterol is also a matter of debate. If you haven't been exercising regularly already, it's important to start slowly. Be sure to check in with your doctor, so that he or she can evaluate your current cardiovascular health. This could mean blood tests or a treadmill test to see how your heart reacts when you exercise.
Of course, exercise alone won't guarantee a low cholesterol level. Genetics, weight, age, gender, and diet all contribute to an individual's cholesterol profile.