Veranderungen der dynamischen Sehleistung bei korperlicher und psychischer Beanspruchung (Changes of dynamic visual performance under conditions of physical and cognitive strain)

Mewes, N., Kellmann, M., Ehrenstein, W. H. and Jendrusch, G. (2008) Veranderungen der dynamischen Sehleistung bei korperlicher und psychischer Beanspruchung (Changes of dynamic visual performance under conditions of physical and cognitive strain). Deutsche Zeitschrift fur Sportmedizin, 59 6: 141-145.


Author Mewes, N.
Kellmann, M.
Ehrenstein, W. H.
Jendrusch, G.
Title Veranderungen der dynamischen Sehleistung bei korperlicher und psychischer Beanspruchung (Changes of dynamic visual performance under conditions of physical and cognitive strain)
Formatted title
Veränderungen der dynamischen Sehleistung bei körperlicher und psychischer Beanspruchung
Translated title Changes of dynamic visual performance under conditions of physical and cognitive strain
Language of Title ger
Journal name Deutsche Zeitschrift fur Sportmedizin   Check publisher's open access policy
ISSN 0344-5930
Publication date 2008
Year available 2008
Sub-type Article (original research)
Open Access Status
Volume 59
Issue 6
Start page 141
End page 145
Total pages 5
Editor J. M. Steinacker
Place of publication Munich, Germany
Publisher Suddeutscher Verlag onpact GmbH
Collection year 2009
Language ger
Subject C1
950102 Organised Sports
170114 Sport and Exercise Psychology
1106 Human Movement and Sports Science
Abstract Changes of several visual parameters during or following physical strain have been investigated before, yet with a somewhat controversial outcome (7,8,9, 10). So far, visual performance based solely on motion cues has not been tested. Moreover, physical strain usually acts on the athlete together with cognitive demands. Here we present novel data on dynamic vision and its dependence on physical as well as on cognitive and physical-cognitive types of strain. The computer-assisted Dusseldorf Test for Dynamic Vision (20,21,22) was used to study visual performance that relies solely on motion cues without differences in luminance ("form from motion"). in a randomised sequence, 24 subjects (12 females and males: average age: 24.0 +/- 2.9 years) were exposed (for 2x15 minutes) to different types of stress: Physically by performing on a cycle ergometer, cognitively by applying the Vienna Determination Test, or both activities combined (a condition without demands served as control). No significant changes of the dynamic visual performance were found for the total sample. However, if objective (lactic acid measures) or experienced (Borg scale) strain intensity was taken as a criterion to split the sample in two extreme groups of high or low strain, a benefit in dynamic visual performance of 10% resulted following physical strain for higher-scoring persons. Interestingly, subsequent testing led to a significant improvement of visual performance; this incidental learning effect might have obscured possible effects of physical or cognitive strain.
Keyword Dynamic vision
Motion contrast
Stress/strain - physical/cognitive
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Human Movement and Nutrition Sciences Publications
 
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Created: Thu, 05 Mar 2009, 10:06:07 EST by Deborah Noon on behalf of School of Human Movement and Nutrition Sciences