A new analysis of the longitudinal Coronary Artery Risk Development in Young Adults (CARDIA) study, published online June 1, 2010 in Hypertension, shows that both physical fitness and physical activity are inversely associated with the development of hypertension over a period of 20 years [1]. But importantly, the researchers illustrate that activity was significantly associated with nonhypertensive blood-pressure readings only when fitness levels were the highest.Learn to train.
The study is one of the few to jointly measure fitness and activity, and distinguishing between the two is important, they explain, because physical activity is a behavior, whereas aerobic fitness is a physiologic measure.
"We know that activity is the principal behavioral determinant of fitness, and we know that being more physically active can improve one's fitness. But the activity needs to be moderate to vigorous to adequately improve fitness to see the greater health benefits," lead author Dr Mercedes R Carnethon (Feinberg School of Medicine, Chicago, IL) told heartwire . While she concedes that this may not be rocket science, she says: "We are showing this, for the first time, with objective data, and it's good that this is consistent with what we know."
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Friday, June 25, 2010
Physically Active Avoid Hypertension, But Only if Fitness Is High
Another reason to train, not exercise.
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