Bigger your waistline, greater the tax on lungs

March 6th, 2009 - 3:28 pm ICT by IANS  

Washington, March 6 (IANS) There’s more bad news for people who carry oodles of fat around their waists: Not only is it associated with diabetes, hypertension, and cardiovascular disease and but also with decreased lung function.
The study analysed around 120,000 people from the Paris Investigations Preventives et Cliniques Center, and assessed demographic background, smoking history, alcohol consumption, as well as lung function, including FEV1 (forced expiratory volume in one second) and FVC (forced vital capacity, or the total expiratory volume) with respect to BMI, waistline and other measures of metabolic health.

“After adjustment for age, sex, BMI, smoking status, alcohol consumption, leisure time physical activity and cardiovascular history, metabolic syndrome remained independently associated with lung function impairment,” wrote co-author Natalie Leone, of the French National Institute for Health and Medical Research (FNIHMR).

“We found a positive independent relationship between lung function impairment and metabolic syndrome due mainly to abdominal obesity,” she said.

Abdominal obesity was defined as having a waist circumference of greater than 35 inches for women and 40 inches for men, said an FNIHMR release.

“Prospective studies are needed to determine the temporal relationship between lung function impairment and metabolic syndrome, including abdominal adiposity in particular. Mechanistic studies are also required to clarify the underlying physiopathological pathways,” concluded Leone.

The results were published in the second issue for March of the American Thoracic Society’s American Journal of Respiratory and Critical Care Medicine.

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