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Keywords: Elastic energy
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Journal Articles
J Exp Biol (2024) 227 (9): jeb246901.
Published: 13 May 2024
.... A helical winding of stiff, elastic fibers around these soft actuators plays a critical role in their mechanics by maintaining a cylindrical shape, distributing forces throughout the structure and storing elastic energy. In contrast to a single-joint lever system, soft hydrostats exhibit variable gearing...
Journal Articles
J Exp Biol (2019) 222 (13): jeb206557.
Published: 28 June 2019
... the ‘SSC effect’ ( Bosco et al., 1982 ; Bosco and Rusko, 1983 ; Komi, 2000 ). The SSC effect has been speculated to be caused by enhanced muscle activation ( Dietz et al., 1979 ; Nichols and Houk, 1973 ), elastic energy utilization ( Finni et al., 2001 ; Kawakami et al., 2002 ), optimal pre-activation...
Journal Articles
J Exp Biol (2019) 222 (6): jeb197905.
Published: 27 March 2019
... the spines of P. volitans to determine mechanical properties (Young's modulus, elastic energy storage and flexural stiffness). The short and recurved anal and pelvic spines are stiffer and resist bending more effectively than the long dorsal spines. In addition, mechanical properties differ along the length...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (7): 1287–1294.
Published: 1 April 2017
... and muscle and tendon excursions were derived using a combination of 3D-motion capture and ultrasonography. Optimum hopping frequency was determined as the frequency that maximized surrogate measures of elastic energy storage potential of the tendon and minimized muscle excursion. Adults presented...
Journal Articles
J Exp Biol (2016) 219 (2): 266–275.
Published: 1 January 2016
... elastic energy during muscle contraction. The potential contribution of these elements can be assessed from their stiffness and estimates of the strain they undergo during muscle function. Such calculations provide boundaries for the possible roles these springs might play in locomotion, and may help...
Journal Articles
J Exp Biol (2015) 218 (22): 3700–3709.
Published: 1 November 2015
...: Power amplification in a compliant muscle-tendon unit is maximal for intermediate inertial-gravitational loads and can be enhanced by a trigger and catch mechanism for small loads. Muscle–tendon system Elastic energy Power amplification Catch mechanism Acceleration Jumping...
Journal Articles
J Exp Biol (2013) 216 (21): 3971–3980.
Published: 1 November 2013
...Evie E. Vereecke; Anthony J. Channon SUMMARY Tendon properties have an important effect on the mechanical behaviour of muscles, with compliant tendons allowing near-isometric muscle contraction and facilitating elastic energy storage and recoil. Stiff tendons, in contrast, facilitate rapid force...
Journal Articles
J Exp Biol (2011) 214 (12): 2089–2095.
Published: 15 June 2011
...Kristine L. Snyder; Claire T. Farley SUMMARY At a given running speed, humans strongly prefer to use a stride frequency near their ‘optimal’ stride frequency that minimizes metabolic cost. Although there is no definitive explanation for why an optimal stride frequency exists, elastic energy usage...
Journal Articles
J Exp Biol (2004) 207 (2): 211–223.
Published: 15 January 2004
...A. A. Biewener; C. McGowan; G. M. Card; R. V. Baudinette SUMMARY The goal of our study was to examine whether the in vivo force-length behavior, work and elastic energy savings of distal muscle-tendon units in the legs of tammar wallabies ( Macropus eugenii ) change during level versus incline...
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J Exp Biol (1998) 201 (11): 1681–1694.
Published: 1 June 1998
...Andrew A. Biewener; David D. Konieczynski; Russell V. Baudinette ABSTRACT Moderate to large macropodids can increase their speed while hopping with little or no increase in energy expenditure. This has been interpreted by some workers as resulting from elastic energy savings in their hindlimb...
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Journal Articles
J Exp Biol (1993) 185 (1): 71–86.
Published: 1 December 1993
...Claire T. Farley; James Glasheen; Thomas A. Mcmahon ABSTRACT Trotting and hopping animals use muscles, tendons and ligaments to store and return elastic energy as they bounce along the ground. We examine how the musculoskeletal spring system operates at different speeds and in animals of different...