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Keywords: Elasticity
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Journal Articles
J Exp Biol (2022) 225 (16): jeb243584.
Published: 16 August 2022
... that during muscle activation, titin binds to actin, which engages the PEVK region of titin, thereby increasing titin stiffness. In this study, we investigated the role of PEVK titin in active muscle stiffness during rapid unloading. We measured elastic recoil of active and passive soleus muscles from Ttn...
Journal Articles
J Exp Biol (2022) 225 (5): jeb242866.
Published: 4 March 2022
... this hypothesis. Strength and elastic (Young's) modulus were similarly lower in sloth limb bones during both compression and bending, as compared with pronograde taxa. Ratios of peak bending strength to compressive strength additionally were elevated (sloths: 1.4–1.7; upright taxa: 0.6–1.2) for sloth limb bones...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (7): jeb211904.
Published: 1 April 2020
..., but mostly isotropic, with collagen and elastin fibers running in all directions. The rorqual TMJ pad compresses as gape increases. Its stiffness is hypothesized to damp acceleration, whereas its elasticity is hypothesized to absorb shock during engulfment, allow for rotation or other jaw motion during gape...
Journal Articles
J Exp Biol (2015) 218 (20): 3276–3283.
Published: 1 October 2015
...Giovanni A. Cavagna; Mario A. Legramandi ABSTRACT A long-lasting challenge in comparative physiology is to understand why the efficiency of the mechanical work done to maintain locomotion increases with body mass. It has been suggested that this is due to a more elastic step in larger animals. Here...
Journal Articles
J Exp Biol (2012) 215 (20): 3552–3558.
Published: 15 October 2012
...Andrew Matson; Nicolai Konow; Samuel Miller; Pernille P. Konow; Thomas J. Roberts SUMMARY The material properties of a tendon affect its ability to store and return elastic energy, resist damage, provide mechanical feedback and amplify or attenuate muscle power. While the structural properties...
Journal Articles
J Exp Biol (2010) 213 (5): 707–714.
Published: 1 March 2010
... ). The length step rapidly unloaded the series elastic element intrinsic to the muscle, allowing the series elastic compliance to be quantified ( Barclay and Lichtwark, 2007 ). Contractions were preceded by a recording of force change in response to the same pattern of length changes delivered without...
Journal Articles
J Exp Biol (2009) 212 (15): 2454–2463.
Published: 1 August 2009
...Glen A. Lichtwark; Johanna C. Watson; Sophia Mavrommatis; Alan M. Wilson SUMMARY The equine biceps brachii (biceps) initiates rapid limb protraction through a catapult mechanism. Elastic strain energy is slowly stored in an internal tendon and is then rapidly released to protract the forelimb...
Includes: Supplementary data
Journal Articles
J Exp Biol (2006) 209 (21): 4379–4388.
Published: 1 November 2006
...G. A. Lichtwark; A. M. Wilson SUMMARY Muscles are required to perform or absorb mechanical work under different conditions. However the ability of a muscle to do this depends on the interaction between its contractile components and its elastic components. In the present study we have used...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2005) 208 (24): 4715–4725.
Published: 15 December 2005
.... We aimed to determine the in vivo Achilles tendon (AT) stress and strain during one-legged hopping and hence the contribution of elastic recoil to mechanical energy changes. We simultaneously measured the length of the Achilles tendon from the muscle–tendon junction to the insertion on the calcaneous...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2005) 208 (15): 2845–2853.
Published: 1 August 2005
... a cyclical movement (such as locomotion)and the length change of the whole muscle tendon unit (MTU) can also be varied. Architecturally, muscles have a range of fibre lengths, maximum force-producing capabilities and stiffness of the series elastic element(SEE). In the present work we use a model to explore...
Journal Articles
J Exp Biol (2005) 208 (15): 2831–2843.
Published: 1 August 2005
...G. A. Lichtwark; A. M. Wilson SUMMARY The power output of a muscle and its efficiency vary widely under different activation conditions. This is partially due to the complex interaction between the contractile component of a muscle and the serial elasticity. We investigated the relationship between...
Journal Articles
J Exp Biol (2004) 207 (17): 2947–2963.
Published: 1 August 2004
... 2004 © The Company of Biologists Limited 2004 2004 trapping function insect insect attachment smooth/hairy attachment fly Calliphora vicina bug Pyrrhocoris apterus profile elasticity Young's modulus adhesion tenacity surface free energy claw interlocking adhesive pad...
Journal Articles
J Exp Biol (1991) 158 (1): 275–289.
Published: 1 July 1991
... the lower pressure and simpler haemodynamics of the poikilothermic circulation. 1. The aorta is highly distensible, resilient and non-linearly elastic, giving it the requisite properties to act as an effective storage element in the arterial circulation. 2. An abrupt transition from high compliance (low...
Journal Articles
J Exp Biol (1990) 152 (1): 471–484.
Published: 1 September 1990
...R. E. SHADWICK; E. K. NILSSON The passive mechanical properties of the dorsal aorta and the vena cava of Octopus vulgaris were investigated in vitro . Both vessels are highly distensible structures that exhibit non-linear elasticity, but have substantially different material properties. The volume...