COLUMBIA, Mo. According to the Centers for Disease Control and Prevention, 25 percent of Americans have inactive lifestyles (they take fewer than 5,000 steps a day) and 75 percent do not meet the weekly exercise recommendations (150 minutes of moderate activity each week and muscle-strengthening activity twice a week) to maintain good health. After reviewing recent literature, University of Missouri researchers contend that physical inactivity is the primary cause of chronic diseases such as diabetes, obesity and fatty liver disease and that even people who set aside time for exercise regularly but are otherwise sedentary, may not be active enough to combat these diseases. Inactivity, in addition to the availability of high-caloric food has led to an increased rate of metabolic dysfunction in Americans.
In a recent study, John Thyfault, assistant professor in the departments of Nutrition and Exercise Physiology and Internal Medicine, found that negative physiological changes associated with a higher risk for type 2 diabetes, occur in people who transition from high amounts of activity (greater than 10,000 steps a day) to inactivity (fewer than 5,000 steps each day).
"If people spend the majority of their time sitting, even with regular periods of exercise, they are still at greater risk for chronic diseases," Thyfault said. "If people can add some regular movement into their routines throughout the day, they will feel better and be less susceptible to health problems. In the long term, they may not see big changes in the mirror, but they will prevent further weight gain."
According to Scott Rector, assistant professor in the departments of Nutrition and Exercise Physiology and Internal Medicine, nonalcoholic fatty liver disease (NAFLD) is a relatively new epidemic related to the recent increase in obesity and physical inactivity rates. The disease, which is the most common chronic liver condition among U.S. adults, occurs when
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University of Missouri-Columbia