The present study was carried out to assess the lung functions in oral contraceptive administered women. Lung function tests were carried out with Spirometer (Vitallograph Compact II). A significant increase in vital capacity (VC) was observed in these women as compared to normal control. There was also a significant decrease in forced expiratory volume in 1 sec./vital capacity (FEV1/VC%) and f...

Short term variability in FEV1 and responsiveness to inhaled bronchodilator were measured in 150 patients with obstructive ventilatory defects. The range of initial FEV1 was 0.5-4.71 and the natural variability over a 20 minute period when expressed in absolute terms was similar over the entire range, and differed insignificantly from that found in normal subjects. The increase in FEV1 and vita...

In this study, 120 middle-aged lung-affected patients were selected at random, observing random sampling method, screened, and further reduced to 40 with their Chest X-ray, from a fireworks factory Sivakasi, Tamil Nadu, between 35 50 years of age. Women grouped into an experimental control group 20 each. The hypothesis was fixed that there would be positive impact on Forced Vital Capacity among...

The purpose of this study was to determine fixed cut-off points for forced expiratory volume in one second (FEV(1))/FEV(6) and FEV(6) as an alternative for FEV(1)/forced vital capacity (FVC) and FVC in the detection of obstructive and restrictive spirometric patterns, respectively. For the study, a total of 11,676 spirometric examinations, which took place on Caucasian subjects aged between 20-...

Objective: To measure the correlation between single breath counting (SBC) and forced vital capacity (liters, FVCL) in amyotrophic lateral sclerosis (ALS) patients to define utility of SBC for determining when meet threshold initiation noninvasive positive pressure ventilation (FVC < 50% predicted [FVCpred]). Methods: Both patient paced (SBCpp) or externally (SBCep) along with FVCL+pred standar...