Researchers recently evaluated data from 10 prospective cohort studies on different types of dietary fiber to determine their effect on heart disease risk. For every 10 g of fiber consumed per day, the risk of developing coronary heart disease (CHD) decreased by 14 percent (%), whereas the risk of dying from CHD decreased by 27%. Fiber obtained from fruit appeared to be slightly more heart protective than cereal fiber. The findings were published in the February 23 issue of the Archives of Internal Medicine.
Exercising to Music May Improve Brainpower
People who exercise are already smart, but listening to music while exercising may make them even smarter, according to a study published in the November–December issue of Heart & Lung (2003; 32 , 368–73).
High cholesterol is a dangerous contributor to coronary heart disease. The National Cholesterol Education Program (NCEP) Guidelines from the National Institutes of Health state that a total-cholesterol level of 240 milligrams per deciliter (mg/dl) or higher indicates an elevated risk of having a heart attack. Optimally, LDL, the “bad” cholesterol, should be 100 mg/dl or below for high-risk individuals (those with cardiovascular disease [CVD], diabetes or a 20 percent [%] or greater chance of suffering a heart attack or dying from CVD in the next 10 years).
More evidence is stacking up against dehydroepiandrosterone (DHEA). Over-the-counter DHEA capsules and creams have been hyped to battle everything from low sex drive to heart disease and Alzheimer’s. Many athletes and bodybuilders also use the supplement in their efforts to gain muscle mass.
Here’s another reason for your clients to maintain a healthy weight: Women who have gained more than 20 pounds since age 18 have a higher risk of developing breast cancer after menopause than women who have maintained their weight, according to research published in the February issue of Cancer Epidemiology Biomarkers and Prevention.
If you train clients with hypertension, you’ll want to check out the new position stand of the American College of Sports Medicine (ACSM) on “Exercise and Hypertension.” (It replaces ACSM’s 1993 position stand “Physical Activity, Physical Fitness, and Hypertension.”) ACSM’s latest stand views exercise as a cornerstone therapy for the primary prevention, treatment and control of the disease.
Previous research has found that people who have had heart failure can benefit from exercise in hospital-based programs on equipment such as bicycle ergometers. However, Teresita Corvera-Tindel, RN, PhD, and colleagues note that this equipment might not always be available to patients. To see how patients would benefit from home-based walking regimens, they studied the impact of a progressive 12-week program.
According to “Boomer Coalition Reality Check: When Boomer Optimism Becomes Denial,” a new survey conducted by RoperASW on behalf of the Boomer Coalition and the American Heart Association, Baby Boomers in the United States are very aware of cardiovascular disease. Unfortunately this knowledge is not spurring them to take action to combat the disease. For example:
Only 47% of survey respondents eat a
healthy diet each day.
Only 55% exercise more than three
times each week.
McCully, K.K., et al. 2004. Muscle metabolism with blood flow restriction in chronic fatigue syndrome. Journal of Applied Physiology, 96, 871-8.
Study. Exercise physiologists at the University of Georgia set out to determine whether chronic fatigue syndrome (CFS) is associated with reductions in blood flow and muscle oxidative metabolism.
Bart Staal, J., et al. Graded activity for low-back pain in occupational health care: A randomized, controlled trial. 2004. Annals of Internal Medicine, 140 (2), 77-84.
Background. Low-back pain is a common medical and social problem frequently associated with disability and absence from work. However, data on effective
return to work after interventions for low-back pain are scarce.