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Keywords: Muscle mechanics
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Journal Articles
J Exp Biol (2020) 223 (19): jeb224410.
Published: 07 October 2020
... resulted in lower work per cycle relative to unloaded trials at the same strain to control for length change and velocity effects on the work output, possibly due to greater accelerations of the muscle mass at higher strains. These results confirm that tissue mass reduces muscle mechanical work at larger...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (10): jeb210054.
Published: 18 May 2020
...: a method enabling an in vitro muscle to ‘remotely control’ a musculoskeletal limb simulation via a closed-loop hardware–software interface. Muscle mechanics Force–length dynamics Muscle physiology Neuromuscular mechanics Biomechanics Frogs Jumping MuJoCo Skeletal muscle is...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (11): jeb191247.
Published: 04 June 2019
... dorsiflexion to aid foot clearance during leg swing. Fascicle Muscle mechanics Biomechanics Musculoskeletal modelling Ultrasound Muscles in the distal lower limb utilise connective tissue elasticity (e.g. tendon, aponeurosis) to enhance their performance. Investigations into a variety of anti...
Journal Articles
J Exp Biol (2018) 221 (22): jeb182089.
Published: 16 November 2018
...Gretchen Meyer; Richard L. Lieber ABSTRACT Differences in passive muscle mechanical properties between amphibians and mammals have led to differing hypotheses on the functional role of titin in skeletal muscle. Early studies of frog muscle clearly demonstrated intracellular load bearing by titin...
Journal Articles
J Exp Biol (2017) 220 (22): 4252–4260.
Published: 15 November 2017
... approximately 50%, with the occurrence of the peak ankle joint moment. In accelerative walking, we have observed that the increase in slope was greater or that the ankle joint was ‘stiffened’ in the transition phase. Therefore, we believe that important changes in ankle muscle mechanics for acceleration will...
Journal Articles
J Exp Biol (2015) 218 (13): 2075–2082.
Published: 01 July 2015
... into the sliding filament model? The sliding filament theory has provided numerous insights linking Hill muscle mechanics with energetics. Accordingly, as both the force produced and energy cost are accepted to be constant per cross-bridge, and because the cycling rate of each cross-bridge is a...
Journal Articles
J Exp Biol (2014) 217 (22): 4018–4028.
Published: 15 November 2014
... © 2014. Published by The Company of Biologists Ltd 2014 Assistive robotics Dynamics simulation Energetics Locomotion Metabolic energy Muscle mechanics Recent advances in exoskeletons or wearable robotic technology designed to assist human locomotion frequently include passive spring...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (15): 2974–2982.
Published: 01 August 2013
... energetics muscle mechanics rabbit contraction The cheetah [ Acinonyx jubatus (Schreber 1775)] is the fastest running animal with a top speed of 29 m s −1 ( Sharp, 1997 ), considerably faster than racehorses ( Spence et al., 2012 ) and racing greyhounds ( Usherwood and Wilson, 2005 ), which can...
Journal Articles
J Exp Biol (2011) 214 (21): 3542–3548.
Published: 01 November 2011
... fatigue resistance. The underlying reasons for this muscle trade-off are poorly defined. The aim of this study was to test the hypothesis that inter-individual variation in muscle mechanics is associated with inter-individual differences in metabolic capacities and expression of calcium-handling proteins...
Includes: Supplementary data
Journal Articles
J Exp Biol (2009) 212 (8): 1115–1119.
Published: 15 April 2009
... constant along the length of the preparation (to within ±0.1°C) during the experiment. The latter point was tested using a thermistor probe that was moved underneath the cover slip by means of a micromanipulator. muscle fibre striated muscle myofilament elasticity muscle mechanics stiffness...
Journal Articles
J Exp Biol (2008) 211 (18): 3001–3008.
Published: 15 September 2008
... element. † Author for correspondence (e-mail: walter@kin.ucalgary.ca ) * Present address: Meakins-Christie Laboratories, McGill University, 3626 St Urbain Street, Montréal, Quebec, Canada H2X 2P2 17 7 2008 © The Company of Biologists Limited 2008 2008 muscle mechanics fibre...
Journal Articles
J Exp Biol (2008) 211 (14): 2336–2345.
Published: 15 July 2008
... Limited 2008 2008 muscle fiber type muscle architecture muscle mechanics scaling Examining functional and anatomical constraints that determine muscle function provides a useful perspective for understanding how muscles are designed. The two most important design parameters that determine...
Journal Articles
J Exp Biol (2008) 211 (9): 1386–1393.
Published: 01 May 2008
... mechanical performance limited labriform swimming speed at T a and below, but other mechanical or energetic factors limited labriform swimming speed at temperatures above T a . gait transition muscle mechanics swimming temperature Previous work has largely focused on maximal swimming...
Journal Articles
J Exp Biol (2008) 211 (9): 1368–1375.
Published: 01 May 2008
... © The Company of Biologists Limited 2008 2008 muscle mechanics fascicle ultrasound musculotendon complex stair descent Stair descent requires high lower limb joint moments( McFadyen and Winter, 1988 ; Riener et al., 2002 ; Protopapadaki et al., 2007 ; Reeves et al., 2008 ), but...
Journal Articles
J Exp Biol (2005) 208 (16): 3159–3167.
Published: 15 August 2005
... skeletal muscle in these animals is greatly increased. We investigated the effects of this plastic response to thermogenesis on locomotion and muscle mechanics. In cold-exposed animals, cost of transport was 15% higher than in controls but was unaffected by exercise training. Twitch kinetics in isolated...
Journal Articles
J Exp Biol (2004) 207 (16): 2787–2791.
Published: 15 July 2004
... steady-state force in the enhanced state can easily exceed the maximal isometric force of the fibre. * Author for correspondence (e-mail: walter@kin.ucalgary.ca ) 17 5 2004 © The Company of Biologists Limited 2004 2004 force enhancement muscle mechanics single fibre striated...
Journal Articles
J Exp Biol (2001) 204 (21): 3587–3600.
Published: 01 November 2001
... muscle. *Author for correspondence at present address: School of Biology, University of Leeds, Leeds LS2 9JT, UK (e-mail: g.n.askew@leeds.ac.uk ) 27 7 2001 © The Company of Biologists Limited 2001 2001 blue-breasted quail Coturnix chinensis muscle mechanics power output...
Journal Articles
J Exp Biol (2001) 204 (13): 2221–2230.
Published: 01 July 2001
... anguilla swimming muscle mechanics red muscle white muscle kinetics power work. Undulatory swimming fish use a backward-travelling wave of lateral curvature to propel themselves through the water. This mechanical wave corresponds to the occurrence of rhythmic, nearly sinusoidal, changes in...
Journal Articles
J Exp Biol (1992) 170 (1): 143–154.
Published: 01 September 1992
..., scaling with L s −0.29 and body mass ( M b ) −0.10 Note: To whom reprint requests should be sent 8 6 1992 © 1992 by Company of Biologists 1992 muscle mechanics oscillatory work fish teleost swimming scaling body size Gadus morhua J. exp. Biol. 170, 143-154 (1992) 143 Printed...
Journal Articles
J Exp Biol (1991) 159 (1): 65–87.
Published: 01 September 1991
... ms. Note: Present address: Department of Physiology, Emory University, Atlanta, GA30322, USA. 30 5 1991 © 1991 by Company of Biologists 1991 muscle mechanics force-velocity active state locust Schistocerca americana J. exp. Biol. 159, 65-87 (1991) 6 5 Printed in Great...