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Keywords: coordination
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Journal Articles
J Exp Biol (2021) 224 (20): jeb227207.
Published: 18 October 2021
... that the P–D sequential motion could contribute to efficient throwing, and this motion pattern could be consistent with the theory of the LJH. Our analysis supports previous theories and provides new insight into the control strategy of multi-joint limb coordination, as discussed below. The current...
Journal Articles
J Exp Biol (2021) 224 (3): jeb228221.
Published: 2 February 2021
... a significant portion of the total mechanical power output in the sagittal plane. These MTU powers were coordinated during the downstroke phase of the crank cycle to transmit the mechanical power to the crank through the foot–pedal interface ( Fig. 2 ). Muscle coordination with greater crank torques from 13 N m...
Journal Articles
J Exp Biol (2021) 224 (2): jeb225532.
Published: 15 January 2021
... macaques crossing an experimental track. The coordination of movement was compared with observations available for primates. Compared with human running, macaque leg retraction cannot merely be produced by hip extension, but needs to be supported by substantial knee flexion. As a result, despite quasi...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (13): jeb224113.
Published: 1 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 (2015) 218 (8): 1122–1125.
Published: 15 April 2015
... of saccades during rhythmic locomotion. This study examined how saccades are coordinated with locomotor movements in a pectoral-fin-propelled teleost fish, Cymatogaster aggregata , the shiner surfperch. Individual fish were filmed swimming in a flow tank at 10 cm s −1 , and timing data were analysed using...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (8): 1501–1515.
Published: 15 April 2013
... unit: (4) the distribution of different types of electrocytes and specialized passive tissue forming the electric organ (EO); (5) the neural mechanisms of electrocyte discharge coordination; and (6) post-effector mechanisms. Here, we reconfirm the importance of the first five of these factors based...
Journal Articles
J Exp Biol (2012) 215 (13): 2262–2272.
Published: 1 July 2012
... the kinematics of cranial bones in common carp, Cyprinus carpio . Mean kinethmoid rotation was 83 deg during premaxillary protrusion (18 events in 3 individuals). The kinethmoid rotates in a coordinated way with ventral translation of the maxillary bridge, and this ventral translation is likely driven primarily...
Journal Articles
J Exp Biol (2010) 213 (13): 2310–2321.
Published: 1 July 2010
...Glen R. D. Elliott; Sally P. Leys SUMMARY The view that sponges lack tissue level organisation, epithelia, sensory cells and coordinated behaviour is challenged by recent molecular studies showing the existence in Porifera of molecules and proteins that define cell signalling systems in higher...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2010) 213 (8): 1320–1327.
Published: 15 April 2010
...Pierre Legreneur; François-Régis Thévenet; Paul-Antoine Libourel; Karine M. Monteil; Stéphane Montuelle; Emmanuelle Pouydebat; Vincent Bels SUMMARY The purpose of this study was to investigate the pattern of coordinations of the hindlimb joints in the world's smallest living primate (Microcebus...
Journal Articles
J Exp Biol (2009) 212 (22): 3737–3742.
Published: 15 November 2009
...) and adolescents (AD – graphs C and D). Relative hopping stiffness was normalised by body mass. The asterisks indicate statistical significance. * Author for correspondence( thomas.korff@brunel.ac.uk ) 11 8 2009 2009 development coordination biomechanics Maximum muscular power...
Journal Articles
J Exp Biol (2009) 212 (5): 599–603.
Published: 1 March 2009
...), whilst relatively more power was generated at the knee and hip joints. These results suggest that intermuscular coordination may be contributing to children's limits in maximum power production during multi-joint tasks. * Author for correspondence (e-mail: jim.martin@utah.edu ) 2 12 2008...
Journal Articles
J Exp Biol (2004) 207 (26): 4515–4524.
Published: 15 December 2004
...-mail: michael.nickel@bio.uni-stuttgart.de 15 9 2004 © The Company of Biologists Limited 2004 2004 contraction kinetics diurnal rhythm time-lapse imaging coordination behaviour sponge Tethya wilhelma Sponges (Porifera) are of simple organisation at first sight...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2003) 206 (18): 3175–3186.
Published: 15 September 2003
... or tibia with the equivalent of 8.5 times the mass of the tibia (corresponding to an increase of up to 11.6 times the rotational moment of inertia at the femur–tibia joint) does not impair the animal's ability to make well-coordinated, aimed movements of that leg towards different targets. The kinematics...
Journal Articles
J Exp Biol (2002) 205 (23): 3707–3716.
Published: 1 December 2002
... the interaction between muscle activation and body curvature. Phil. Trans. R. Soc. Lond. B 334 , 385 -390. Braun, G. and Mulloney, B. ( 1995 ). Coordination in the crayfish swimmeret system: differential excitation causes changes in intersegmental phase. J. Neurophysiol. 73 , 880 -885. Buchanan, J...
Journal Articles
J Exp Biol (1990) 148 (1): 113–128.
Published: 1 January 1990
... with whether the described channels alone are able to fulfil the requirements of a ‘coordinating mechanism’ as described in the literature. 21 8 1989 © 1990 by Company of Biologists 1990 funnel canal organs coordination rock lobster walking J. exp. Biol. 148, 113-128 (1990) 113 Printed...
Journal Articles
J Exp Biol (1987) 131 (1): 245–264.
Published: 1 September 1987
... of coordination during activities such as walking and limb waving. This paper examines the nature of the coupling between hemisegmental oscillators in the absence of sensory feedback, and the effect of phasic input from a major limb proprioceptor. 1. In isolated preparations of the thoracic nerve cord, adjacent...
Journal Articles
J Exp Biol (1985) 114 (1): 513–519.
Published: 1 January 1985
..., 1964; Runion & Usherwood, 1968; Pearson, 1972; Wong & Pearson, 1976; Bassler, 1977; Cruse & Pfliiger, 1981). Influences of the second type arise from the sensory-neural control system of other legs, and some of these influences produce appropriate coordination between the legs. Only a few experimental...
Journal Articles
J Exp Biol (1984) 110 (1): 203–216.
Published: 1 May 1984
...JEFFREY DEAN; GERNOT WENDLER The relationship between standing and steady walking was investigated for stick insects walking on a wheel. Normal hexapod coordination patterns ensure that each point in the gait cycle has static stability. Nevertheless, stick insects show preferred stopping sequences...