1
40
4
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
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n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
136-136
Volume
156
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Elastic Energy Storage In The Achilles Tendon During Running Gaits
Publisher
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American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2015
2015-03
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
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Foster A D; Butcher M T; Smith G A; Young J W
Identifier
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n/a
Format
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Journal Article or Conference Abstract Publication
2015
American journal of physical anthropology
Anthropology
Butcher M T
Evolutionary Biology
Foster A D
Smith G A
Young J W
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1111/joa.12991" target="_blank" rel="noreferrer noopener">http://doi.org/10.1111/joa.12991</a>
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
106-123
Issue
1
Volume
235
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Ontogenetic allometry and architectural properties of the paravertebral and hindlimb musculature in Eastern cottontail rabbits (Sylvilagus floridanus): functional implications for developmental changes in locomotor performance
Publisher
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Journal of Anatomy
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
2019-07
Subject
The topic of the resource
acceleration; force; muscle mass; ontogeny; physiological cross-sectional area; power; scaling
Creator
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Butcher M T; Rose J A; Glenn Z D; Tatomirovich N M; Russo G A; Foster A D; Smith G A; Young J W
Description
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Due to small body size, an immature musculoskeletal system, and other growth-related limits on performance, juvenile mammals frequently experience a greater risk of predation than their adult counterparts. As a result, behaviorally precocious juveniles are hypothesized to exhibit musculoskeletal advantages that permit them to accelerate rapidly and evade predation. This hypothesis was tested through detailed quantitative evaluation of muscle growth in wild Eastern cottontail rabbits (Sylvilagus floridanus). Cottontail rabbits experience high rates of mortality during the first year of life, suggesting that selection might act to improve performance in growing juveniles. Therefore, it was predicted that muscle properties associated with force and power capacity should be enhanced in juvenile rabbits to facilitate enhanced locomotor performance. We quantified muscle architecture from 24 paravertebral and hindlimb muscles across ontogeny in a sample of n = 29 rabbits and evaluated the body mass scaling of muscle mass (MM), physiological cross-sectional area (PCSA), isometric force (Fmax ), and instantaneous power (Pinst ), along with several dimensionless architectural indices. In contrast to our hypothesis, MM and PCSA for most muscles change with positive allometry during growth by scaling at M b 1.3 and M b 1.1 , respectively, whereas Fmax and Pinst generally scale indistinguishably from isometry, as do the architectural indices tested. However, scaling patterns indicate that the digital flexors and ankle extensors of juvenile S. floridanus have greater capacities for force and power, respectively, than those in adults, suggesting these muscle properties may be a part of several compensatory features that promote enhanced acceleration performance in young rabbits. Overall, our study implies that body size constraints place larger, more mature rabbits at a disadvantage during acceleration, and that adults must develop hypertrophied muscles in order to maintain mechanical similarity in force and power capacities across development. These findings challenge the accepted understanding that juvenile animals are at a performance detriment relative to adults. Instead, for prey-predator interactions necessitating short intervals of high force and power generation relative to body mass, as demonstrated by rapid acceleration of cottontail rabbits fleeing predators, it may be the adults that struggle to keep pace with juveniles.
Identifier
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<a href="http://doi.org/10.1111/joa.12991" target="_blank" rel="noreferrer noopener">10.1111/joa.12991</a>
2019
acceleration
Butcher M T
Department of Anatomy & Neurobiology
force
Foster A D
Glenn Z D
Journal of anatomy
June 2019 Update
Muscle mass
NEOMED College of Medicine
ontogeny
physiological cross-sectional area
Power
Rose J A
Russo G A
scaling
Smith G A
Tatomirovich N M
Young J W
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
E179-E179
Volume
54
Search for Full-text
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Dublin Core
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Title
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Ontogeny of locomotor performance in Eastern cottontail rabbits: I. Hindlimb muscle architecture and fiber type
Publisher
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Integrative and Comparative Biology
Date
A point or period of time associated with an event in the lifecycle of the resource
2014
2014
Subject
The topic of the resource
Zoology
Creator
An entity primarily responsible for making the resource
Rose J A; Russo G A; Young J W; Smith G A; Butcher M T
Identifier
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n/a
Format
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Journal Article
2014
Butcher M T
Integrative and comparative biology
Journal Article
Rose J A
Russo G A
Smith G A
Young J W
Zoology
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
E59-E59
Volume
55
Search for Full-text
Locate full-text within NEOMED Library's e-journal collections
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
The Spring In Their Step: Ontogeny Of Ankle Joint Mechanics In Eastern Cottontail Rabbits (sylvilagus Floridanus)
Publisher
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Integrative and Comparative Biology
Date
A point or period of time associated with an event in the lifecycle of the resource
2015
2015-04
Subject
The topic of the resource
Zoology
Creator
An entity primarily responsible for making the resource
Foster A D; Butcher M T; Smith G A; Young J W
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article or Conference Abstract Publication
2015
Butcher M T
Foster A D
Integrative and comparative biology
Smith G A
Young J W
Zoology