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Keywords: electromyography
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Journal Articles
J Exp Biol (2021) 224 (14): jeb242587.
Published: 22 July 2021
... an inverted pendulum mechanism on the ground, while different gait and substrate contexts directly affect the muscular activity and the recovery rates toward higher costs. Centre of mass Electromyography Primate Locomotion Positive reinforcement IBISA Platform of the Centre...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (12): jeb242626.
Published: 24 June 2021
... walked 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...
Journal Articles
J Exp Biol (2021) 224 (9): jeb242336.
Published: 04 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
J Exp Biol (2019) 222 (24): jeb205559.
Published: 18 December 2019
.../ Summary: Similar to the patterns observed 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (7): jeb188748.
Published: 03 April 2019
... 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
J Exp Biol (2018) 221 (21): jeb187260.
Published: 05 November 2018
... which 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...
Journal Articles
J Exp Biol (2018) 221 (18): jeb179564.
Published: 17 September 2018
... 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 with...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (17): jeb168716.
Published: 03 September 2018
... with more constant, 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (4): jeb166199.
Published: 22 February 2018
... because of muscles that both move the skin relative to the underlying skeleton and modulate skin stiffness. Snake Muscle Electromyography Movement Skin The different body plans of animals have profound consequences for how and where animals are able to move, and elongate, limbless bodies...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (24): 4681–4688.
Published: 15 December 2017
... Biologists Ltd 2017 http://www.biologists.com/user-licence-1-1/ Summary: We 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...
Journal Articles
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
J Exp Biol (2017) 220 (21): 4047–4059.
Published: 01 November 2017
... 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
J Exp Biol (2017) 220 (19): 3455–3463.
Published: 01 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
J Exp Biol (2017) 220 (19): 3545–3555.
Published: 01 October 2017
... 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 are...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (19): 3499–3507.
Published: 01 October 2017
... show the role of the stretched forelegs in flight of the beetle Mecynorrhina torquata . Using leg motion tracking and electromyography in flight, we found that the forelegs were voluntarily swung clockwise in yaw to induce counter-clockwise rotation of the body for turning left, and vice versa...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (9): 1643–1653.
Published: 01 May 2017
... forces, as confirmed via ultrasound-based estimates of tendon strains. B-mode ultrasound Electromyography Motor unit recruitment Musculoskeletal simulation Hill-type muscle models are ubiquitous in biomechanical analyses of human movement and more recently are being applied to animal...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (5): 938–951.
Published: 01 March 2017
.... Electromyography Feeding Temperature effects Ballistic movement Ectotherm Changes in temperature present a significant challenge to organisms, especially ectotherms; low temperature can result in substantial decreases in ecologically relevant performance such as predator escape and feeding ( Huey and...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (5): 796–806.
Published: 01 March 2017
... muscle function remains an important but neglected question in ecophysiology. Here, we used high-speed videography, electromyography, in situ contractile experiments and morphology to examine gastrocnemius muscle function during arboreal locomotion in the Cuban knight anole, Anolis equestris . The...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (18): 2809–2813.
Published: 15 September 2016
... Split-belt treadmill Electromyography Human walking and running are two forms of locomotion that have distinct muscle activation patterns ( Cappellini et al., 2006 ). People generally prefer an inverted-pendulum walk at slow speeds and switch to a bouncing run at fast speeds ( Margaria et al...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (12): 1860–1865.
Published: 15 June 2016
... 2016 © 2016. Published by The Company of Biologists Ltd 2016 Summary: The mangrove rivulus is an amphibious fish that uses a modified C -start escape response motor pattern to drive its terrestrial tail-flip behavior. Mangrove rivulus Electromyography Escape response Tail-flip...
Includes: Supplementary data