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Keywords: power
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Journal Articles
J Exp Biol (2024) 227 (9): jeb246555.
Published: 10 May 2024
... velocities and forces that maximize biting power, which may be selectively advantageous for predators of diverse prey that require both jaw-closing force and speed. * Author for correspondence ( dsustaita@csusm.edu ) Competing interests The authors declare no competing or financial interests...
Includes: Supplementary data
Journal Articles
JEB: 100 years of discovery
J Exp Biol (2023) 226 (Suppl_1): jeb245109.
Published: 13 February 2023
... performance alters in response to long-term temperature changes; other anthropogenic environmental changes, including pollutants, might also alter animal tissue mechanics, locomotor performance and behaviour. Climate Force Muscle Pollution Power Temperature Global temperatures are forecast...
Journal Articles
Journal Articles
J Exp Biol (2021) 224 (3): jeb228221.
Published: 2 February 2021
... in conjunction with musculoskeletal simulations and a recently developed functional index-based approach to characterise the role of human lower-limb muscles. We found that in muscles that generate most of the mechanical power and work during cycling, greater crank torque induced shifts towards greater muscle...
Journal Articles
J Exp Biol (2020) 223 (16): jeb223743.
Published: 17 August 2020
... velocity and pennation angle change were greater during aquatic takeoffs than during terrestrial takeoffs because of the differences in knee motion. Nevertheless, we observed no significant differences in LG stress or work, but did see an increase in muscle power output during aquatic takeoffs. Because...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (12): jeb207472.
Published: 26 June 2020
... phase of walking. We quantified the mechanical power and work done by all structures distal to the hindfoot's center of mass (i.e. structures of the entire foot), using a unified deformable segment analysis ( Takahashi et al., 2012 ). This analysis captures the total mechanical contribution...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (2): jeb213397.
Published: 27 January 2020
.... ( 1995 ). Controlling the false discovery rate: a practical and powerful approach to multiple testing . J. R. Stat. Soc. B   57 , 289 - 300 . 10.1111/j.2517-6161.1995.tb02031.x Bennett , A. F. and Huey , R. B. ( 1990 ). Studying the evolution of physiological performance . Oxford...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (19): jeb187369.
Published: 5 October 2018
... and high angles of attack (AoA). Although insects have continuously received attention from biologists and aerodynamicists, the high AoA operation in insect flight has not been clearly explained. Here, we used a theoretical blade-element model to examine the impact of wing inertia on the power requirement...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (13): jeb163840.
Published: 6 July 2018
... force and power produced by increasing the demand on weight-supporting muscle. However, when normalised to body mass, muscle performance of obese individuals is reduced. Isolated muscle preparations show that obesity often leads to a decrease in force produced per muscle cross-sectional area, and power...
Journal Articles
J Exp Biol (2018) 221 (7): jeb177600.
Published: 11 April 2018
...Tomer Urca; Gal Ribak ABSTRACT The distance a small insect moves through the air during a jump is limited by the launch velocity at take-off and by air resistance. The launch velocity is limited by the length of the jumping legs and the maximum power that the jump apparatus can provide for pushing...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2016) 219 (9): 1369–1377.
Published: 1 May 2016
...Laura McFarlane; John D. Altringham; Graham N. Askew ABSTRACT Diurnal and seasonal increases in body mass and seasonal reductions in wing area may compromise a bird's ability to escape, as less of the power available from the flight muscles can be used to accelerate and elevate the animal's centre...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (18): 2856–2863.
Published: 1 September 2015
... well the contractile properties of skinned fibres reflect the properties of the muscle fibres in vivo . Here, we compare the mechanical performance of intact fibre bundles and skinned fibres from muscle of the same animals. This is the first such direct comparison. Maximum power and isometric force...
Journal Articles
J Exp Biol (2015) 218 (2): 194–205.
Published: 15 January 2015
...Joseph E. Rupert; Jacob A. Rose; Jason M. Organ; Michael T. Butcher Scratch-digging mammals are commonly described as having large, powerful forelimb muscles for applying high force to excavate earth, yet studies quantifying the architectural properties of the musculature are largely unavailable...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (17): 3002–3005.
Published: 1 September 2014
... This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/3.0 ), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. Hunt Jump Owl Power...
Includes: Supplementary data
Journal Articles
J Exp Biol (2011) 214 (14): 2354–2361.
Published: 15 July 2011
... biomechanical analogs for incremental adaptive stages in the evolutionary origin of flight. A primary assumption of the hypothesis is that work and power requirements from the primary downstroke muscle, the pectoralis, incrementally increase from shallow- to steep-angled terrestrial locomotion, and between...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2011) 214 (5): 786–793.
Published: 1 March 2011
... by 0, 7, 14 or 21% by means of intra-peritoneal injections of saline solution, and flights were recorded as animals flew upwards in a small enclosure. Using a model based on actuator disk theory, we estimated the mechanical power expended by the bats as they flew and separated that cost into different...
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Journal Articles
Journal Articles