Assessment of sun exposure in adolescent girls using activity diaries

Sullivan, S. S. and Cobb, J. L. and Rosen, C. J. and Holick, M. F. and Chen, T. C. and Kimlin, Michael G. and Parisi, Alfio (2003) Assessment of sun exposure in adolescent girls using activity diaries. Nutrition Research, 23 (5). pp. 631-644. ISSN 0271-5317

Abstract

[Abstract]: The objective was to test a method of assessing sun exposure for use in stratifying adolescent girls according to potential for vitamin D3 synthesis in the skin. Thirty-five girls wore polysulphone ultraviolet (UV) dosimeters and kept diaries of their activities on August 17, 2000. Minutes spent outdoors during each hour of the day were tabulated and adjusted for the fractional strength of ultraviolet B (UVB) radiation relative to peak hour. Total adjusted minutes outdoors were compared with UV dosimeter readings. A series of ampules containing 7-dehydrocholesterol were exposed on a flat plane to further investigate the potential for skin synthesis of previtamin D3 with a given sun exposure. The correlation between measured UVB exposure and self-reported minutes outdoors adjusted for the time of day was r = 0.64. In vitro previtamin D3 synthesis at midday was reduced by 50% on a cloudy day compared with a sunny day.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author's version unavailable.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 17 Aug 2009 03:37
Last Modified: 02 Jul 2013 23:22
Uncontrolled Keywords: vitamin D; sdolescents; female; sun exposure; ultraviolet rays
Fields of Research (FOR2008): 04 Earth Sciences > 0401 Atmospheric Sciences > 040103 Atmospheric Radiation
URI: http://eprints.usq.edu.au/id/eprint/5562

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