How one-minute bursts of exercise can boost health for over-60s in just six weeks
Current guidelines say pensioners need to do at least two and a half hours of cycling or fast walking a week, plus two sessions of yoga, gardening or other activities that strengthen muscles. Shapiro tapped Reed to serve on the Monsanto board and Reed, in turn, asked Shapiro to the board of Citicorp, the bank where Reed was chief executive. The move, which was expected, is the latest signal that the new chief executive, John J. Improper Backdating of Stock Options. Fleishman became a director of Polo Ralph Lauren Inc. Nearly half of the meals ordered from a menu were hamburger , French fries , or poultry — and about one third of orders included a carbonated beverage drink. Just another reason investors should be wary of those who claim that the free markets - not regulators - are best at making conflicts go away.
Working out Smart
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.
After just six weeks, blood pressure fell by 9 per cent and day-to-day activities were easier, the Journal of the American Geriatrics Society reports. Current guidelines say pensioners need to do at least two and a half hours of cycling or fast walking a week, plus two sessions of yoga, gardening or other activities that strengthen muscles.
Dr Babraj said that those who do not have an exercise bike can get the same benefit from six-second runs up a steep hill and added: Andrew Marr has blamed the stroke he suffered on experimenting with high intensity exercise. He said it could be argued that short, sharp sessions put less strain on the heart than lengthier, less intensive ones.
BBC presenter Andrew Marr has blamed the stroke he suffered last year on experimenting with high intensity exercise. Dr Babraj cautioned that people should check with their doctor before embarking on a training programme.
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How one-minute bursts of exercise can boost health for overs in just six weeks Easier to do tasks such as getting out of chair or carrying shopping Study by Abertay University in Dundee into high intensity exercise It could help ease the 'astronomical' cost of ill-health in the elderly By Fiona Macrae for the Daily Mail Published: Share this article Share. Share or comment on this article: How one-minute bursts of exercise can boost health for overs in just six weeks e-mail.
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