ABSTRACT
Body fat and lean body mass was assessed in young college students by two different techniques involving NIR method and body circumference measurements. NIR technique significantly over-estimated the body fat as compared to the results obtained by the other method. The difference between the methods was 23-30% high for fat and the variation was 5-9% low for lean body mass for the whole group. Results obtained by the body girth size measurements agreed well with fat and lean body mass values from other studies on Indian subjects which had employed different methods.
Subject(s)
Adipose Tissue/physiology , Adolescent , Adult , Anthropometry , Body Composition/physiology , Body Height/physiology , Body Weight/physiology , Female , Humans , MaleABSTRACT
A spirometric study (FVC, FEV1 & PEFR/Min) was carried out in workers exposed to fertilizer chemicals (91) as a whole, out of which 31 were Ammonia, 30 Urea and 30 DAP plant workers, and 68 were controls belonging to the same age, sex, body surface area and socio-economic status. This study showed significant reduction in both PEFR/min and FEV1, the reduction being more in PEFR/Min., seems to indicate obstructive type of lung changes affecting the larger air-ways first, followed by bronchospasm. But FVC showed a significant reduction only after more than 10 years of exposure, probably causing restrictive changes only after prolonged exposure. Out of the 3 chemicals, DAP affected all the 3 parameters most, followed by Ammonia and Urea affected the least.
Subject(s)
Ammonia/adverse effects , Bronchial Spasm/chemically induced , Fertilizers , Forced Expiratory Volume , Humans , Occupational Diseases/chemically induced , Peak Expiratory Flow Rate , Phosphates/adverse effects , Respiratory Function Tests , Time Factors , Urea/adverse effects , Vital CapacityABSTRACT
A lung function study was carried out to determine the relative effect of rice husk and saw dust on mill workers. The study consisted of 195 subjects of which 56 rice mill workers, 71 saw mill workers and 68 controls of similar age, sex and socio-economic condition. FVC was significantly reduced in saw-mill workers compared to both the controls and rice mill workers. Both FEV1 and PEFR/min were significantly reduced in both mill workers compared to controls. The fall in PEFR/min in saw mill workers was also significant when compared to rice mill workers. FVC was reduced after 5 years of exposure only in saw mill workers. FEV1 was reduced within a year which was further reduced after 5 years in both mill workers. PEFR/min was highly reduced within a year remained so even after 5 years.