Lower Vital Capacity Is Associated With Diabetes but Not With Metabolic Syndrome in Nonobese Japanese Men

Lower vital capacity has been reported to be a predictor of diabetes in Western countries (1–3) and has also been reported to be associated with diabetes and other metabolic risk factors in Japanese middle-aged men (4). However, there is no report on the relationship between lower vital capacity and metabolic syndrome or diabetes in nonobese subjects. We studied cross-sectional relationships among percent vital capacity (%VC) and diabetes and metabolic risk factors using medical checkup data from 2,079 men and 1,215 women who visited our Medical Checkup Center and gave signed informed consent between April and …