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Microcirculation. 2010 Jul;17(5):381-93. doi: 10.1111/j.1549-8719.2010.00033.x.

Association between physical activity and retinal microvascular signs: the Atherosclerosis Risk in Communities (ARIC) Study.

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1
Murdoch Children's Research Institute, Parkville, Victoria, Australia.

Abstract

OBJECTIVE:

To examine the association between physical activity measured during leisure, sport, and work and retinal microvascular signs.

METHODS:

Participants of the Atherosclerosis Risk in Communities (ARIC) Study, a population-based cross-sectional study, had retinal photographs taken at their third follow up visit (1993-1995). Retinal microvascular signs were assessed using a standardized protocol and retinal vascular caliber by a computer-assisted method. Leisure, sport, and work-related physical activity levels were determined through a modified Baecke physical activity questionnaire.

RESULTS:

A higher level of physical activity during sport and work was significantly associated with a lower prevalence of arteriovenous (AV) nicking, wider venular caliber, and retinopathy. In multivariate models, persons with a level of sport-related physical activity above the median were less likely to have AV nicking (odds ratio [OR] = 0.87; 95% confidence interval [CI] 0.78-0.97) and wider retinal venules (OR = 0.91; 95% CI: 0.83-0.99). Persons with a level of work-related physical activity above the median were less likely to have diabetic retinopathy (OR = 0.66, 95% CI: 0.51-0.85).

CONCLUSIONS:

In this cross-sectional analyzes, higher levels of physical activity was associated with a lower prevalence of retinal microvascular abnormalities.

PMID:
20618695
PMCID:
PMC3005356
DOI:
10.1111/j.1549-8719.2010.00033.x
[Indexed for MEDLINE]
Free PMC Article
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