The resilience of natural interceptive actions to refractive blur

Mann, David L., Abernethy, Bruce and Farrow, Damian (2010) The resilience of natural interceptive actions to refractive blur. Human Movement Science, 29 3: 386-400. doi:10.1016/j.humov.2010.02.007

Author Mann, David L.
Abernethy, Bruce
Farrow, Damian
Title The resilience of natural interceptive actions to refractive blur
Journal name Human Movement Science   Check publisher's open access policy
ISSN 0167-9457
Publication date 2010-06
Sub-type Article (original research)
DOI 10.1016/j.humov.2010.02.007
Volume 29
Issue 3
Start page 386
End page 400
Total pages 15
Place of publication Amsterdam
Publisher Elsevier
Collection year 2011
Language eng
Formatted 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.
Keyword Myopia
Visual acuity
Contact lenses
Shooting performance
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Human Movement and Nutrition Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 20 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 19 times in Scopus Article | Citations
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Created: Sun, 27 Jun 2010, 00:07:26 EST