{"id":777,"date":"2021-01-22T12:11:33","date_gmt":"2021-01-22T11:11:33","guid":{"rendered":"https:\/\/blogs.ugr.es\/claro-group\/?p=777"},"modified":"2021-02-01T17:48:03","modified_gmt":"2021-02-01T16:48:03","slug":"articulo-paper-jul-2020-clinical-experimental-ophthalmology","status":"publish","type":"post","link":"https:\/\/blogs.ugr.es\/claro-group\/articulo-paper-jul-2020-clinical-experimental-ophthalmology\/","title":{"rendered":"Paper (Jul. 2020) – Clinical & Experimental Ophthalmology"},"content":{"rendered":"

Effects of caffeine consumption on intraocular pressure during low\u2010intensity endurance exercise: A placebo\u2010controlled, double\u2010blind, balanced crossover study. <\/strong><\/a><\/h4>\n

Jes\u00fas Vera<\/a>, Beatriz Redondo<\/a>, Anabel Bard\u00f3n, Alejandro P\u00e9rez\u2010Castilla, Amador Garc\u00eda\u2010Ramos, Raimundo Jim\u00e9nez<\/a>.<\/p>\n

Clinical & Experimental Ophthalmology<\/em><\/a> 48 (5), 602-609.<\/p>\n

doi:https:\/\/doi.org\/10.1111\/ceo.13755<\/a><\/p>\n

Abstract<\/strong><\/p>\n

Importance<\/strong>
\nIntraocular pressure (IOP) is sensitive to caffeine intake and physical exercise. However, the combined effect of caffeine intake and physical exercise on IOP levels remains unknown.<\/p>\n

Background<\/strong>
\nWe aimed to assess the effects of caffeine consumption before exercise on the IOP behaviour during low\u2010intensity endurance exercise.<\/p>\n

Design<\/strong>
\nA placebo\u2010controlled, double\u2010blind, balanced crossover study at the University of Granada.<\/p>\n

Participants<\/strong>
\nEighteen physically active young adults (age = 23.3\u2009\u00b1\u20092.4\u2009years) participated in this study.<\/p>\n

Methods<\/strong>
\nParticipants performed 30\u2009minutes of cycling at 10% of maximal power production after 30\u2009minutes of ingesting a capsule of caffeine (~4 mg\/kg) and placebo in two different days and following a double\u2010blind procedure.<\/p>\n

Main Outcome Measure<\/strong>
\nIOP was measured at baseline (before caffeine\/placebo ingestion), after 5 minutes of warm\u2010up, during cycling (6, 12, 18, 24 and 30\u2009minutes) and recovery (5 and 10 minutes) by rebound tonometry.<\/p>\n

Results<\/strong>
\nThere was a significant effect of caffeine consumption (P\u2009<\u2009.001, \u03b72 = 0.50), showing that the ingestion of caffeine before exercise counteracted the IOP\u2010lowering response to low\u2010intensity endurance exercise. Greater IOP values at 12, 18, 24 and 30\u2009minutes (corrected P\u2010values<.05, ds = 0.90\u20101.08) of cycling were observed for the caffeine in comparison to the placebo condition.<\/p>\n

Conclusions and Relevance<\/strong>
\nThe ingestion of caffeine (~4 mg\/kg) 30\u2009minutes before performing low\u2010intensity endurance exercise counteracts the IOP\u2010lowering effect of low\u2010intensity exercise. These results highlight that the ingestion of a considerable amount of caffeine before exercise should be discouraged for individuals who would benefit from the IOP reduction associated with low\u2010intensity exercise (ie, glaucoma patients or those at risk).<\/p>\n","protected":false},"excerpt":{"rendered":"

Effects of caffeine consumption on intraocular pressure during low\u2010intensity endurance exercise: A placebo\u2010controlled, double\u2010blind, balanced crossover study. Jes\u00fas Vera, Beatriz Redondo, Anabel Bard\u00f3n, Alejandro P\u00e9rez\u2010Castilla, Amador Garc\u00eda\u2010Ramos, Raimundo Jim\u00e9nez. Clinical & Experimental Ophthalmology 48 (5), 602-609. doi:https:\/\/doi.org\/10.1111\/ceo.13755 Abstract Importance Intraocular pressure (IOP) is sensitive to caffeine intake and physical exercise. However, the combined effect of […]<\/p>\n","protected":false},"author":565,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-777","post","type-post","status-publish","format-standard","hentry","category-sin-categoria"],"_links":{"self":[{"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/posts\/777","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/users\/565"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/comments?post=777"}],"version-history":[{"count":3,"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/posts\/777\/revisions"}],"predecessor-version":[{"id":920,"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/posts\/777\/revisions\/920"}],"wp:attachment":[{"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/media?parent=777"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/categories?post=777"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.ugr.es\/claro-group\/wp-json\/wp\/v2\/tags?post=777"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}