50076649-5123-421e-891b-1dcf1fd4d6ef eng utf8 dataset pointOfContact National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 voice Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Mr. Sakthivel Samy V 2020-12-11T00:00:00 creation ISO 19115-1 Geographic information - Metadata - Part 1: Fundamentals ISO 19115-1:2014 Comparison of Cardiovascular Responses to Cold Stress of Summer and Winter Over Members in Antarctica. 2020-09-15T00:00:00 creation Document digital Nine subjects each from eleventh Summer and eighth Wintering teams were studied to compare the changes in the cardiovascular reactivity to cold exposure. Cold immersion test (CT) was carried out on these subjects on three occasions and simultaneous record of pain threshold time, blood pressure, heart rate (ECG) were obtained. The results show that the normal reactivity of cardiovascular system to cold exposure gets attenuated after acclimatization in Antarctic environment. The short summer exposure was sufficient to increase the cold induced pain threshold. However, it lasted only for three weeks whereas for winter groups the acclimatization was for a longer period. This indicates different mechanism of acclimatization for the two groups. Adaptation to cold results in an increase in the peripheral blood flow in human subjects. The duration and intensity of cold exposure controls the responses to cold exposure. Adaptation to cold is evidenced by enhanced capacity for heat production, or by modification in the cardiovascular responses in human subjects. Cold pressor test or cold immersion test (Singh et al.,1991) is a common autonomic function test which is utilised to study cold adaptation as well as sympathetic nervous system activation in human subjects. The measurement of pain threshold time (PTT) during cold immersion test has also been used as an index of pain tolerance (Leblanc et al.,1960 and Dowling et al.,1983). completed principalInvestigator National Centre for Polar and Ocean Research (NCPOR) 8322525515 voice Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND ictd@ncpor.res.in Dr. Bimal Chhajer health 20.0 140.0 -90.0 30.0 1991-01-01 1992-12-31 Earth Science-Human Dimensions Theme Maitri Antarctic Place Comparison of Cardiovascular Responses to Cold Stress of Summer and Winter Over Members in Antarctica Project eng TableDigital unknown unknown unknown distributor National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 voice Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Mr. Sakthivel Samy V http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF-810481460&userType=user&freeTextValue=Comparison+of+Cardiovascular+Responses+to+Cold+Stress+of+Summer+and+Winter+Over+Members+in+Antarctica.