Why the study?
Are physical activity and television viewing time associated with retinal microvascular caliber in US adults?
Are physical activity and television viewing time associated with retinal microvascular caliber in US adults?
Lower physical activity and higher sedentary time are associated with wider retinal venular caliber, a potential marker of microvascular dysfunction, in specific racial/ethnic groups.
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Associations should not yet change practice; leaves open whether activity interventions affect retinal microvascular caliber.
Anuradha et al. (2011) studied this question.