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

Kleins Lab // Publications // Jul 01 2010

PubMed ID: 20618695

Author(s): Tikellis G, Anuradha S, Klein R, Wong TY. Association between physical activity and retinal microvascular signs: the Atherosclerosis Risk in Communities (ARIC) Study. Microcirculation. 2010 Jul;17(5):381-93. doi: 10.1111/j.1549-8719.2010.00033.x. PMID 20618695

Journal: Microcirculation (New York, N.Y. : 1994), Volume 17, Issue 5, Jul 2010

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.