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1-20 of 132
Keywords: electromyography
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Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol jeb.248118.
Published: 18 October 2024
... of the gastrocnemii during isometric plantarflexion contractions [via changing knee angle] and determined if there were associated changes in how the muscles of the triceps surae bulged in thickness during a ramped contraction. We combined B-mode ultrasound imaging with surface electromyography to quantify...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2024) 227 (5): jeb246275.
Published: 12 March 2024
... ). Electromyography (EMG) signals were recorded with a Powerlab 16/35 analog to digital converter (AD Instruments Ltd, Dunedin, New Zealand) at a sampling rate of 1000 kilosamples s −1 . Signals were amplified (10 k gain) using a model 1700 differential AC amplifier (AM Systems, Sequim, WA, USA) with a 60 Hz notch...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2023) 226 (13): jeb245600.
Published: 12 July 2023
...-selected cadence increases with power output, whereas at low power demands, minimizing knee muscle activation becomes important in cadence selection during cycling. Vastus lateralis muscle Joint power Crank power requirements Muscle mechanics Electromyography Chilean National Agency...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2022) 225 (23): jeb243902.
Published: 9 December 2022
...: Despite discrete changes in kinematic magnitude and coordination, the pattern of axial red muscle and pectoral fin adductor activity remains similar across the aquatic–terrestrial transition in Polypterus senegalus . Amphibious fishes Kinematics Electromyography Terrestrial locomotion...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2022) 225 (18): jeb244361.
Published: 27 September 2022
... Summary: Stick insects compensate for different types of transient changes in load distribution by graded adjustment of muscle co-contraction rather than by a sudden switch in coordinated motor activity. Muscle activity Load Slope Electromyography Kinematics Stick insect Deutsche...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2021) 224 (24): jeb242630.
Published: 22 December 2021
... elastic structures. In this study, we examined the functional roles of a major ankle extensor muscle, the lateral gastrocnemius (LG), and a major knee extensor muscle, the vastus lateralis (VL), through in vivo sonomicrometry and electromyography techniques, during vertical jumping by kangaroo rats. Our...
Journal Articles
In collection:
Comparative biomechanics of movement
François Druelle, Anthony Supiot, Silke Meulemans, Niels Schouteden, Pablo Molina-Vila, Brigitte Rimbaud, Peter Aerts, Gilles Berillon
Journal:
Journal of Experimental Biology
J Exp Biol (2021) 224 (14): jeb242587.
Published: 22 July 2021
... . PLoS ONE 3 , e3808 . 10.1371/journal.pone.0003808 Boyer , D. M. , Patel , B. A. , Larson , S. G. and Stern , J. T. Jr. ( 2007 ). Telemetered electromyography of peroneus longus in Varecia variegata and Eulemur rubriventer: implications for the functional significance...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2021) 224 (12): jeb242626.
Published: 24 June 2021
... at their preferred speed under two conditions: 0% and 10% incline treadmill grade. We used surface electromyography and B-mode ultrasound to estimate muscle activation and fascicle dynamics in the MG and LG. We observed a higher normalized activation in the MG than in the LG during stance, which did not translate...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2021) 224 (9): jeb242336.
Published: 4 May 2021
... remain to this date unclear. To close this gap, we investigated the activity of both the locomotor and the sonic musculature using electromyography. The comparison between the activation patterns of both systems highlighted modifications of the neural motor pathway: (1) a transition from a bilateral...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2019) 222 (24): jeb205559.
Published: 18 December 2019
... in larger animals, distal rat muscles favor economy and show limited fascicle strains across gaits and grades. Electromyography Work Gastrocnemius Plantaris Sonomicrometry Economy Skeletal muscles undergo time-varying force development in relation to neuromotor activation that affects...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2019) 222 (7): jeb188748.
Published: 3 April 2019
... to leg kinematics (movements) and leg dynamics (forces, torques). Here, we studied these parameters in hindlegs of stick insects ( Carausius morosus ) during level and uphill/downhill (±45 deg) walking, using a combination of electromyography, 3D motion capture and ground reaction force measurements. We...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2018) 221 (21): jeb187260.
Published: 5 November 2018
... the activation of GM, GL and SOL was estimated using electromyography (EMG). Functional muscle physiological cross-sectional area (PCSA) was estimated using imaging techniques and was considered as an index of muscle force-generating capacity. The distribution of activation and PCSA among the three muscles...
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2018) 221 (18): jeb179564.
Published: 17 September 2018
... of the locomotor muscles is modulated with these shifts, we used electromyography (EMG) to quantify patterns of in vivo muscle activity in forelimb and hindlimb muscles before and after autotomy. Forelimb muscles (biceps brachii and triceps brachii) exhibited no changes in motor recruitment, consistent...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2018) 221 (17): jeb168716.
Published: 3 September 2018
..., moderate-intensity activity of all muscles during swimming. Muscle function Electromyography Aquatic Terrestrial High-speed videography Fish Muscle is responsible for an immense array of tasks integral to the function of animals: its action propels food through digestive tracts, enables...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2018) 221 (4): jeb166199.
Published: 22 February 2018
... of environments, which facilitates investigating the diversity and plasticity of axial motor patterns. Snake Muscle Electromyography Movement Skin Summary: Unlike most limbless vertebrates, snakes can propel themselves without bending their long axis because of muscles that both move the skin...
Includes: Supplementary data
Journal Articles
Matthew J. Fuxjager, Leonida Fusani, Franz Goller, Lisa Trost, Andries Ter Maat, Manfred Gahr, Ioana Chiver, R. Miller Ligon, IV, Jennifer Chew, Barney A. Schlinger
Journal:
Journal of Experimental Biology
J Exp Biol (2017) 220 (24): 4681–4688.
Published: 15 December 2017
... pinpoint the main skeletal muscles associated with the production of an elaborate gestural courtship display in a tropical bird, the golden-collared manakin. Skeletal muscle Electromyography Courtship behavior Social signal Biomechanics Golden-collared manakin Spectacular acrobatics...
Journal Articles
Fausto A. Panizzolo, Sangjun Lee, Taira Miyatake, Denise Martineli Rossi, Christopher Siviy, Jozefien Speeckaert, Ignacio Galiana, Conor J. Walsh
Journal:
Journal of Experimental Biology
J Exp Biol (2017) 220 (22): 4169–4176.
Published: 15 November 2017
... distinct adaptive strategies: an ankle-based strategy when stepping with the forefoot, and a hip-based strategy when stepping with the rearfoot. Electromyography Preferred walking speed Unanticipated bump Irregular surface Humans walk over different types of terrains on a daily basis...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2017) 220 (21): 4047–4059.
Published: 1 November 2017
... is facilitated by a four-bar linkage that links jaw and hyoid depression. Elasmobranchs Feeding Sonomicrometry Electromyography Four-bar linkage Catch mechanism Suction feeding performance in fishes is influenced by many factors, including but not limited to, the magnitude of orobranchial...
Includes: Supplementary data
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2017) 220 (19): 3455–3463.
Published: 1 October 2017
... isometric ankle plantarflexion at 20 N m and 20% of the active torque measured during a maximal contraction, at three ankle angles (30 deg of plantarflexion, 0 and 25 deg of dorsiflexion; knee fully extended). Myoelectric activity (electromyography, EMG) provided an index of neural drive. Muscle shear...
Journal Articles
In collection:
Comparative biomechanics of movement
Journal:
Journal of Experimental Biology
J Exp Biol (2017) 220 (19): 3545–3555.
Published: 1 October 2017
... on body orientation and the location of muscles relative to the supporting surfaces. Boiga irregularis Cantilever Arboreal Electromyography Locomotion Coactivation Arboreal habitats have considerable three-dimensional complexity as well as sizable gaps between branches, and snakes...
Includes: Supplementary data
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