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Article: The resilience of natural interceptive actions to refractive blur

TitleThe resilience of natural interceptive actions to refractive blur
Authors
KeywordsContact lenses
Cricket
Myopia
Sport
Visual acuity
Issue Date2010
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/humov
Citation
Human Movement Science, 2010, v. 29 n. 3, p. 386-400 How to Cite?
Abstract
The impact of refractive visual blur on interceptive skill was examined for a series of highly-demanding striking tasks. Ten skilled cricket batsmen were required to intercept balls projected by either a ball projection-machine (medium-pace only) or cricket bowlers (two velocities; medium-pace and fast-pace) under each of four systematically varied visual conditions. Contact lenses were fitted to simulate increments in refractive blur (habitual, +1.00, +2.00, +3.00. D), with changes in interceptive performance evaluated on three concurrent measures of performance relevant to cricket batting (quality of bat-ball contact, forcefulness of bat-swing, and likelihood of dismissal). For the projection-machine condition, results replicate those reported previously (Mann, Ho, De Souza, Watson, & Taylor, 2007) with blur needing to reach +3.00. D before any significant decreases in performance were evident, a finding further replicated when facing bowlers of comparable velocity. The influence of blur on interception was found to interact with ball-velocity, with the increased temporal demands of fast-paced trials resulting in decreased performance becoming evident at a lower level of blur (+2.00. D). The findings demonstrate that even when presented with a situation replicating highly-demanding performance conditions, substantial degradation of visual clarity is possible before acuity is a limiting factor for interceptive performance. © 2010 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/134240
ISSN
2013 Impact Factor: 2.027
2013 SCImago Journal Rankings: 0.844
ISI Accession Number ID
Funding AgencyGrant Number
Cricket Australia Sport Science Sport Medicine Research Program
Funding Information:

This project was funded by a research grant from the Cricket Australia Sport Science Sport Medicine Research Program. The authors would like to thank staff of the Skill Acquisition, and the Biomechanics and Performance Analysis disciplines at the Australian Institute of Sport for their assistance in data collection, in particular Melissa Hopwood, Lyndell Bruce, Megan Rendell, Ina Janssen, and Adam Gorman. Cricket ACT, in particular Ashley Ross and Andrew Dawson, assisted with participant recruitment and provided the bowling-machine.

References

 

DC FieldValueLanguage
dc.contributor.authorMann, DLen_HK
dc.contributor.authorAbernethy, Ben_HK
dc.contributor.authorFarrow, Den_HK
dc.date.accessioned2011-06-13T07:21:09Z-
dc.date.available2011-06-13T07:21:09Z-
dc.date.issued2010en_HK
dc.identifier.citationHuman Movement Science, 2010, v. 29 n. 3, p. 386-400en_HK
dc.identifier.issn0167-9457en_HK
dc.identifier.urihttp://hdl.handle.net/10722/134240-
dc.description.abstractThe impact of refractive visual blur on interceptive skill was examined for a series of highly-demanding striking tasks. Ten skilled cricket batsmen were required to intercept balls projected by either a ball projection-machine (medium-pace only) or cricket bowlers (two velocities; medium-pace and fast-pace) under each of four systematically varied visual conditions. Contact lenses were fitted to simulate increments in refractive blur (habitual, +1.00, +2.00, +3.00. D), with changes in interceptive performance evaluated on three concurrent measures of performance relevant to cricket batting (quality of bat-ball contact, forcefulness of bat-swing, and likelihood of dismissal). For the projection-machine condition, results replicate those reported previously (Mann, Ho, De Souza, Watson, & Taylor, 2007) with blur needing to reach +3.00. D before any significant decreases in performance were evident, a finding further replicated when facing bowlers of comparable velocity. The influence of blur on interception was found to interact with ball-velocity, with the increased temporal demands of fast-paced trials resulting in decreased performance becoming evident at a lower level of blur (+2.00. D). The findings demonstrate that even when presented with a situation replicating highly-demanding performance conditions, substantial degradation of visual clarity is possible before acuity is a limiting factor for interceptive performance. © 2010 Elsevier B.V.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/humoven_HK
dc.relation.ispartofHuman Movement Scienceen_HK
dc.subjectContact lensesen_HK
dc.subjectCricketen_HK
dc.subjectMyopiaen_HK
dc.subjectSporten_HK
dc.subjectVisual acuityen_HK
dc.titleThe resilience of natural interceptive actions to refractive bluren_HK
dc.typeArticleen_HK
dc.identifier.emailMann, DL: dmann@hku.hken_HK
dc.identifier.emailAbernethy, B: bruceab@hkucc.hku.hken_HK
dc.identifier.authorityMann, DL=rp01492en_HK
dc.identifier.authorityAbernethy, B=rp00886en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.humov.2010.02.007en_HK
dc.identifier.pmid20430464en_HK
dc.identifier.scopuseid_2-s2.0-77952889859en_HK
dc.identifier.hkuros182603-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77952889859&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume29en_HK
dc.identifier.issue3en_HK
dc.identifier.spage386en_HK
dc.identifier.epage400en_HK
dc.identifier.isiWOS:000278508100004-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridMann, DL=24464168800en_HK
dc.identifier.scopusauthoridAbernethy, B=8841578500en_HK
dc.identifier.scopusauthoridFarrow, D=7006613807en_HK
dc.identifier.citeulike7108677-

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