Description
Low forced vital capacity (FVC); FVC is the total volume of air that can be forcefully expired. ". . . low FVC may imply restrictive physiology but cannot and should not be relied on as the sole indicator of lung volume status." [Sullivan, p. 215] ". . . increasing BMI in heavier people, particularly those who had a BMI >26.4 kg/m2, 79% of whom had become obese by year 10, was associated with a rapid decrease in FVC and FEV1 and an almost constant FEV1/FVC ratio." [PMID 18394165]