Prolonged sitting linked to increased risk of nonalcoholic fatty liver disease according to new research

There is a link between sedentary behavior and nonalcoholic fatty liver disease, according to a new study, and doing high levels of moderate to vigorous exercise is unlikely to counter this effect.
Even people with a body mass index of less than 23 can develop NAFLD if their lifestyle is largely sedentary.
Sedentary behavior means that you are in effect "at rest" - you are doing so little that there is no increase in energy burn above "resting level." Many studies have already established a link between sedentary behavior and conditions such as obesity , diabetes , high blood pressure , diseases of the heart and blood vessels, cancer and even death.

The 2008 Physical Activity Guidelines for Americans recommend that adults clock up about 2.5 hours of moderate-to-vigorous physical activity per week. However, the National Health and Nutrition Examination Survey (NHANES) notes that adults are sedentary for an average of 55% of their day.
Published in the Journal of Hepatology , the new study looked at the relationship between sitting time and physical activity and nonalcoholic fatty liver disease (NAFLD) in more than 140,000 middle-aged Korean men and women.
Physical activity and sitting times were established from a version of the International Physical Activity Questionnaire Short Form, while ultrasound was used to establish the presence of fatty liver.
'Our chairs are slowly but surely killing us' Of the study participants, nearly 35% had NAFLD. Both sitting for long periods and less physical activity were independently associated with NAFLD.
Of particular note, these same observations were made in people with a normal body weight, defined as a body mass index ( BMI) of less than 23.
"Our findings suggest that both increasing participation in physical activity and reducing sitting time may be independently important in reducing the risk of NAFLD, and underlines the importance of reducing time spent sitting in addition to promoting physical activity," says study co-author Dr. Yoosoo Chang, PhD, of the Department of Occupational and Environmental Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine in South Korea.
SOURCE: MNT