Interindividual Differences in Leg Muscle Mass and Pyruvate Kinase Activity Correlate with Interindividual Differences in Jumping Performance of Hyla multilineata

James, R. S., de Carvalho, J. E., Kohlsdorf, T., Gomes, F. R., Navas, C. A. and Wilson, R. S. (2005) Interindividual Differences in Leg Muscle Mass and Pyruvate Kinase Activity Correlate with Interindividual Differences in Jumping Performance of Hyla multilineata. Physiological And Biochemical Zoology, 78 5: 857-867. doi:10.1086/432149

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Author James, R. S.
de Carvalho, J. E.
Kohlsdorf, T.
Gomes, F. R.
Navas, C. A.
Wilson, R. S.
Title Interindividual Differences in Leg Muscle Mass and Pyruvate Kinase Activity Correlate with Interindividual Differences in Jumping Performance of Hyla multilineata
Journal name Physiological And Biochemical Zoology   Check publisher's open access policy
ISSN 1522-2152
Publication date 2005-09
Sub-type Article (original research)
DOI 10.1086/432149
Open Access Status File (Publisher version)
Volume 78
Issue 5
Start page 857
End page 867
Total pages 11
Editor James W Hicks
Place of publication Chicago, IL United States
Publisher University of Chicago Press
Collection year 2005
Language eng
Subject C1
270604 Comparative Physiology
780105 Biological sciences
Abstract Frog jumping is an excellent model system for examining the structural basis of interindividual variation in burst locomotor performance. Some possible factors that affect jump performance, such as total body size, hindlimb length, muscle mass, and muscle mechanical and biochemical properties, were analysed at the interindividual (intraspecies) level in the tree frog Hyla multilineata. The aim of this study was to determine which of these physiological and anatomical variables both vary between individuals and are correlated with interindividual variation in jump performance. The model produced via stepwise linear regression analysis of absolute data suggested that 62% of the interindividual variation in maximum jump distance could be explained by a combination of interindividual variation in absolute plantaris muscle mass, total hindlimb muscle mass ( excluding plantaris muscle), and pyruvate kinase activity. When body length effects were removed, multiple regression indicated that the same independent variables explained 43% of the residual interindividual variation in jump distance. This suggests that individuals with relatively large jumping muscles and high pyruvate kinase activity for their body size achieved comparatively large maximal jump distances for their body size.
Keyword Physiology
Zoology
Pacific Tree Frog
Locomotor Performance
Sprint Performance
Hindlimb Muscles
Power Output
Individual Variability
Swimming Performance
Anuran Amphibians
Skeletal-muscles
Enzyme-activity
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 05:56:41 EST