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dc.contributor.authorAnuradha, S.
dc.contributor.authorHealy, Genevieve
dc.contributor.authorDunstan, D.
dc.contributor.authorShyong Tai, E.
dc.contributor.authorVan Dam, R.
dc.contributor.authorLee, J.
dc.contributor.authorKhaing Nang, E.
dc.contributor.authorOwen, N.
dc.contributor.authorWong, T.
dc.date.accessioned2017-01-30T11:08:48Z
dc.date.available2017-01-30T11:08:48Z
dc.date.created2015-10-29T04:09:50Z
dc.date.issued2011
dc.date.submitted2015-10-29
dc.identifier.citationAnuradha, S. and Healy, G. and Dunstan, D. and Shyong Tai, E. and Van Dam, R. and Lee, J. and Khaing Nang, E. et al. 2011. Associations of physical activity and television viewing time with retinal vascular caliber in a multiethnic Asian population. Investigative Ophthalmology and Visual Science. 52 (9): pp. 6522-6528.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/8799
dc.identifier.doi10.1167/iovs.11-7324
dc.description.abstract

Purpose: The aim of this study was to examine the relationship of physical activity and television (TV) viewing time with retinal vascular caliber in a multiethnic Asian population. Methods: Chinese, Indian, and Malay participants (n = 3866) were examined cross-sectionally in the Singapore Prospective Study Program (2004-2007). Leisure-time physical activity and TV viewing time were assessed by the use of an interviewer-administered questionnaire. Retinal arteriolar and venular calibers were measured from digital retinal photographs. Results: After adjusting for demographic, behavioral, and medical factors, those in the lowest quartile of leisure-time physical activity had a wider venular caliber (by 1.51 µm; 95% confidence interval [CI], 0.01-2.92) compared with those in the highest quartile. Using sex- and ethnicity-specific quartiles, stronger associations were noted in males (2.23 µm; 95% CI, 0.10-4.38) and Chinese (2.52 µm; 95% CI, 0.44-4.59) participants. Females who watched >2 hours of TV per day had a narrow arteriolar caliber (by 1.28 µm; 95% CI, -2.56--0.03), compared with the arteriolar caliber of those who watched less TV. Conclusions: Lower physical activity and higher TV viewing time (in females) were adversely associated with retinal microvascular caliber among Asian adults. Additional cross-sectional and longitudinal studies are needed to further clarify the potential mediating role of the microvasculature in the relationship between these behavioral risk factors and poor cardiometabolic health outcomes.

dc.titleAssociations of physical activity and television viewing time with retinal vascular caliber in a multiethnic Asian population
dc.typeJournal Article
dcterms.dateSubmitted2015-10-29
dcterms.source.volume52
dcterms.source.number9
dcterms.source.startPage6522
dcterms.source.endPage6528
dcterms.source.issn0146-0404
dcterms.source.titleInvestigative Ophthalmology and Visual Science
curtin.digitool.pid232837
curtin.pubStatusPublished
curtin.refereedTRUE
curtin.departmentSchool of Physiotherapy and Exercise Science
curtin.identifier.scriptidPUB-VC-ORD-SA-19059
curtin.identifier.elementsidELEMENTS-84982
curtin.accessStatusFulltext not available


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