ABSTRACT
Introduction: It has been observed in our society that the theory of hot and cold is believed in and practiced by almost all section of the society. It is necessaary to know the prevalence of such belief in the community from time to time. Objectives: To know the prevalence of perception of hot or cold food items and their impact on t health status of the community. Material and methods: It was a cross sectional study done between the time period of March and April 2015 among 317 families and their members at t their doorsteps. Pretested questionnaire was filled with the information given by the subjects after their verbal consent. Descriptive questions regarding the family’s perception of hot and cold foods were asked in the categories of cereals, pulses, oils, vegetables, dairy products, non-vegiterian, fruits, beverage, spice and water. Results: Sixty six percent of the families told Brinjal, 84% told chicken and 34.6% told curd are hot foods and produces Gastrointestinal tract (74%) and Genitourinary tract (73%) illnesses. Similarly 15.6% of the families told carrot, 26.33% told grapes, 20% told fish and 58.6% told buttermilk are cold foods leading to development of respiratory tract illnesses. Only one percent of the families did not have any idea about hot or cold food items. Conclusion: The prevalence of misconception of hot or cold foods exist among families and misunderstanding about the nutritive value of food items which are likely to cause deficiency in vitamins, minerals in their family diet.
ABSTRACT
Maximal oxygen uptake (VO2max) during a graded maximal exercise test is the objective method to assess cardiorespiratory fitness. Maximal oxygen uptake testing is limited to only a few laboratories as it requires trained personnel and strenuous effort by the subject. At the population level, submaximal tests have been developed to derive VO2max indirectly based on heart rate based nomograms or it can be calculated using anthropometric measures. These heart rate based predicted standards have been developed for western population and are used routinely to predict VO2max in Indian population. In the present study VO2max was directly measured by maximal exercise test using a bicycle ergometer and was compared with VO2max derived by recovery heart rate in Queen’s College step test (QCST) (PVO2max I) and with VO2max derived from Wasserman equation based on anthropometric parameters and age (PVO2max II) in a well defined age group of healthy male adults from New Delhi. The values of directly measured VO2max showed no significant correlation either with the estimated VO2max with QCST or with VO2max predicted by Wasserman equation. Bland and Altman method of approach for limit of agreement between VO2max and PVO2max I or PVO2max II revealed that the limits of agreement between directly measured VO2max and PVO2max I or PVO2max II was large indicating inapplicability of prediction equations of western population in the population under study. Thus it is evident that there is an urgent need to develop nomogram for Indian population, may be even for different ethnic sub-population in the country.