German researchers tracked 92 children aged 3 to 6 for about a week and found physical activity played no role in whether they were overweight, while socioeconomic status did. PCRM notes exercise carries other health benefits even so.
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Exercise
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Lifestyle
Exercise capacity predicts mortality in type 2 diabetes patients
Among 2,867 veterans with type 2 diabetes aged 50 to 87 followed nearly eight years, each 1-MET rise in exercise capacity was linked to 23 percent lower death risk in those aged 50 to 65 and 16 percent in those over 65. A separate JAMA study favours aerobic plus resistance training.
Lifestyle
Can This Simple Activity Actually Cut Eliminate Acid Reflux?
Short bouts of moderate exercise a couple of times a week can cut GERD risk, partly by lowering body mass index. But scientists found that high-agitation activities such as vigorous running induced reflux even in people without chronic heartburn, as did lying-flat lifts.
Lifestyle
Is Exercise the Best Drug for Depression?
Psychologist Jasper Smits is testing exercise as a treatment for anxiety and mood disorders. Aerobic programs have repeatedly improved depression about as much as medication does and appear to prevent relapse, and researchers suggest exercise may shift serotonin and norepinephrine.
Diet
Diet and Exercise Beat Drugs for Diabetes Heart Risks
Four studies in the New England Journal of Medicine found no heart benefit for diabetics from lowering systolic pressure with antihypertensives, from adding an HDL-raising drug, or from two blood sugar drugs. Mercola argues weight loss, activity and nutrition matter more.
Lifestyle
Bad News Ladies, It Takes More Exercise Than You Think
A JAMA study followed more than 34,000 non-dieting women, average age 54, for 13 years and found it took about an hour a day of moderately intense activity to fend off weight gain in those not already overweight. Only about 13% of the women managed that much.
Lifestyle
Exercise Cuts Prostate Cancer Risk
Among 190 men biopsied for suspected prostate cancer, those walking the equivalent of three to six hours a week were two-thirds less likely to be diagnosed than sedentary men. The study shows an association, not that exercise caused the drop.
Lifestyle
Exercise doesn’t boost metabolism long
Research by Dr. Edward Melanson at the University of Colorado found that moderate exercise of under an hour has little effect on 24-hour fat oxidation. If you replace the calories you burn, he said, you are no better off for fat loss than if you had not exercised at all.
Vitamins
Nutritionist says antioxidants imperative for exercisers
In a University of Jena study, diabetics given 1,000 mg of vitamin C and 400 IU of vitamin E before exercise did not show the expected mopping up of damaging oxygen molecules; researchers suspect the supplements short-circuit the body's own response. One nutritionist calls it too early to conclude.
Lifestyle
Massage after exercise impairs blood flow
Queen's University researchers report that massage after exercise impairs blood flow to the muscle and so hinders lactic acid removal, the opposite of what physical therapists commonly assume. They call theirs the first study to rigorously test the claim.
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