Assessment of accuracy of the Vacu-Med 17053 calibrator for ventilation, oxygen uptake (V(O(2))), and carbon dioxide production (V(CO(2))).

Background: Few have examined the accuracy of mechanical calibrators used to calibrate metabolic monitors.

Objective: To evaluate the Vacu-Med 17053 motorized syringe calibrator for accuracy against the accepted standard method: the Douglas bag.

Methods: We tested oxygen consumption values (V(O(2))) of 522-3,210 mL/min.

Cardiorespiratory fitness and mortality in diabetic men with and without cardiovascular disease.

We assessed joint associations of cardiorespiratory fitness and diabetes, cardiovascular disease (CVD), or both with all-cause mortality. High-fitness eliminated mortality risk in diabetes (P<0.001) and halved risk of death in diabetes/CVD (P<0.

Fitness and fatness as mortality predictors in healthy older men: the veterans exercise testing study.

Background: Low body mass index (BMI) and low cardiorespiratory fitness (CRF) are independently associated with increased mortality in the elderly. However, interactions among BMI, CRF, and mortality in older persons have not been adequately explored.

Methods: Hazard ratios (HRs) were calculated for predetermined strata of BMI and CRF.