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Keywords: Locomotion
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Journal Articles
J Exp Biol (2021) 224 (9): jeb242336.
Published: 04 May 2021
... from the locomotor hypaxial musculature. The transition from a neuromuscular system initially shaped for slow movements (locomotion) to a system that requires a high contraction rate (sound production) was accompanied with major peripheral structural modifications, yet the associated neural adjustments...
Includes: Supplementary data
Journal Articles
J Exp Biol jeb.242258.
Published: 30 April 2021
... terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/4.0 ), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. Locomotion Gait asymmetry Energy cost Biomechanics Walking...
Journal Articles
J Exp Biol (2021) 224 (6): jeb241083.
Published: 30 March 2021
..., increasing the risk of encounters on shared landscapes. Energetics Ursus arctos , GPS Movement ecology Locomotion Greater Yellowstone Ecosystem Energy is a limiting factor for many species of wildlife ( Parker et al., 1984 ; Shepard et al., 2013 ). Because daily and seasonal movements are...
Journal Articles
J Exp Biol (2021) 224 (6): jeb220731.
Published: 12 March 2021
... the continuous body of limbless animals achieves higher accuracy than the widely used B-spline method and is useful for quantifying body–environment interactions. Locomotion Complex terrain Terradynamics Interpolation Cosserat rod theory Backbone optimization Limbless animals such...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (5): jeb228296.
Published: 09 March 2021
... strategies used by dogs, horses, giraffes and elephants can be explained by work optimization under their specific Murphy numbers. Rotational dynamics have been largely ignored in quadrupedal locomotion, but appear to be a central factor in gait selection. Summary: Work-based optimization predicts that...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (3): jeb233056.
Published: 12 February 2021
.... Published by The Company of Biologists Ltd 2021 Summary: The human walk–run transition does not minimize energetic cost at moderate inclines, but does on steeper inclines (15 deg). Gait transition Locomotion Metabolic cost Uphill The study consisted of two sessions. On day 1, we...
Journal Articles
J Exp Biol (2021) 224 (2): jeb228718.
Published: 21 January 2021
...: Analysis of adhesion and detatchment in four species of Hawaiian gobies across substrates differing in roughness and wettability reveals varying climbing abilities and higher shear pull-off forces on rough substrates. Biomechanics Locomotion Roughness Wettability Goby Adhesion Attachment...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (1): jeb228973.
Published: 04 January 2021
... interests. © 2021. Published by The Company of Biologists Ltd 2021 Summary: Mechanical processes that replace chemical processes in organismal movement can result in performance that is robust to changing temperature. Thermal sensitivity Performance Movement Locomotion Feeding...
Journal Articles
J Exp Biol (2020) 223 (24): jeb235226.
Published: 15 December 2020
... temperatures that naturally induce winter quiescence. Kinetics Wrasse Pectoral fin Swimming Kinetics Abductor superficialis Locomotion Torpor Temperature is a key abiotic factor that affects most physiological processes and behavior in ectotherms. As a result, water temperature is...
Journal Articles
J Exp Biol (2020) 223 (23): jeb216119.
Published: 04 December 2020
... ) and female wallabies that can hop with their young in their pouch ( Baudinette and Biewener, 1998 ). Thus, carrying loads can be expensive or cheap, but this will depend on its anatomical location. Arm swing Metabolic cost Energetics Locomotion Biomechanics Summary: In humans...
Journal Articles
J Exp Biol (2020) 223 (18): jeb227140.
Published: 28 September 2020
...-caudal bending axis in the rays used for walking. This novel limb design may have promoted the benthic foraging behavior exhibited by these species by uncoupling locomotion and feeding. Underwater walking evolved in many fish lineages ( Dickson and Pierce, 2018 ; Edwards, 1989 ; King et al., 2011...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (16): jeb223230.
Published: 24 August 2020
... quantify hydrodynamic mechanisms of fish locomotion and facilitates the understanding of how body kinematics generate locomotor forces in freely swimming fishes. We processed the high-speed videos from the ventral view in DaVis 8.3 (LaVision Inc.), by automatically masking the fish body ( Fig. 1 B) in...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (14): jeb220319.
Published: 30 July 2020
... properties of the substrate on which they crawl and adjust their behavior to match those properties. Previous work on caterpillar locomotion has concentrated on major gaits such as inching and crawling or alternative movements such as ballistic rolling and lifeline climbing ( Brackenbury, 1996 , 1997...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (14): jeb224360.
Published: 28 July 2020
.... , Raven , J. , Zhong , H. , Yang , H. , Tuszynski , M. H. and Edgerton , V. R. ( 2005 ). Kinematic and EMG determinants in quadrupedal locomotion of a non-human primate (rhesus) . J. Neurophysiol.   93 , 3127 - 3145 . 10.1152/jn.01073.2004 Crompton , R. H. , Vereecke...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (13): jeb224113.
Published: 01 July 2020
...Peter C. Raffalt; Jenny A. Kent; Shane R. Wurdeman; Nick Stergiou ABSTRACT During locomotion, humans change gait mode between walking and running as locomotion speed is either increased or decreased. Dynamical systems theory predicts that the self-organization of coordinated motor behaviors...
Journal Articles
J Exp Biol (2020) 223 (12): jeb207472.
Published: 26 June 2020
... immediately following ground contact. Furthermore, the longitudinal arch of humans is distinct from other primates ( Holowka and Lieberman, 2018 ), which could affect how the foot performs work during locomotion. Understanding how morphological differences among humans and other primates affect the foot's...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (12): jeb217562.
Published: 15 June 2020
... substrates varying in diameter and orientation angle. Locomotion Arboreal Stability Arboreal environments present considerable biomechanical challenges for animals moving over substrates varying in diameter, orientation and compliance. Primates are among the most arboreal of mammalian orders...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (10): jeb220475.
Published: 27 May 2020
... physiological recordings. In contrast, the external mechanical work required for terrestrial locomotion can be determined more directly by using a force platform as an ergometer. Based on an extension of the recent invention of the aerodynamic force platform, we now present a more direct method to determine the...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (5): jeb103564.
Published: 28 February 2020
... locomotor strategies that make use of fluid-like or solid-like features of this substrate, or combinations of the two. Here, we use examples from our work to demonstrate the diverse array of methods used and insights gained in the study of both surface and subsurface limbless locomotion in these habitats...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (3): jeb205690.
Published: 03 February 2020
... present a study of the kinematics of unloaded and loaded locomotion in the polymorphic seed-harvesting ant Messor barbarus . In this species, large ants have larger heads relative to their size than small ants. Hence, their center of mass is shifted forward, and even more so when they are carrying a load...
Includes: Supplementary data