| The short-term influence of exercise on axial length and intraocular pressure. | |
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MedLine Citation:
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PMID: 21423141 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The aim of this study is to investigate the short-term influence of a period of dynamic exercise on axial length (AXL) and intraocular pressure (IOP) in young adult subjects. PATIENTS AND METHODS: In all, 20 young adult subjects (10 myopes and 10 emmetropes) participated. Baseline measures of ocular biometrics, IOP and ocular pulse amplitude (OPA) were taken following a 20-min rest period. Subjects then performed 10 min of moderate intensity, low impact dynamic exercise (bicycle ergometry). Measures of ocular biometrics, IOP and OPA were repeated immediately after, and then 5 and 10 min after this exercise task. Systemic blood pressure and pulse rate were also monitored. A repeated measures analysis of variance was used to investigate the changes in the measured parameters. RESULTS: Exercise resulted in significant changes in a range of ocular parameters. A small but significant decrease in AXL was observed following exercise (P<0.0001). The largest change in AXL was noted immediately following exercise (mean decrease -17±10 μm). IOP and OPA also decreased significantly following exercise (P<0.0001). A moderate but significant positive association was found between the changes in AXL and the changes in IOP (r(2)=0.36, P<0.0001). There were no significant differences found between the myopic and emmetropic subjects in the magnitude of changes observed in ocular parameters following exercise. CONCLUSION: The physiological effects of dynamic exercise lead to changes in a range of ocular parameters, including significant reductions in IOP, OPA and decreases in AXL. |
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Authors:
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S A Read; M J Collins |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2011-03-18 |
Journal Detail:
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Title: Eye (London, England) Volume: 25 ISSN: 1476-5454 ISO Abbreviation: Eye (Lond) Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-06-09 Completed Date: 2011-09-08 Revised Date: 2012-09-24 |
Medline Journal Info:
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Nlm Unique ID: 8703986 Medline TA: Eye (Lond) Country: England |
Other Details:
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Languages: eng Pagination: 767-74 Citation Subset: IM |
Affiliation:
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Contact Lens and Visual Optics Laboratory, School of Optometry, Queensland University of Technology, Brisbane, Queensland, Australia. sa.read@qut.edu.au |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Analysis of Variance Axial Length, Eye / physiology* Emmetropia / physiology Exercise / physiology* Eye / blood supply Female Humans Intraocular Pressure / physiology* Male Myopia / physiopathology Regional Blood Flow / physiology Young Adult |
| Comments/Corrections | |
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