1-15 of 15
Keywords: Inverse dynamics
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Journal Articles
J Exp Biol (2019) 222 (10): jeb198325.
Published: 23 May 2019
... metatarsophalangeal joints were estimated throughout stance via inverse dynamics. Hindlimb stiffness was estimated from plots of total leg force versus total leg length, and individual joint stiffness was estimated from plots of joint moment versus joint angle. Our results support the hypothesis that goats modulate...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (22): jeb182113.
Published: 16 November 2018
... and limb levels during walking. We also posit that rehabilitative approaches to improve locomotor patterns should consider more direct means to elicit favorable changes in ankle power output. Thus, here we used real-time inverse dynamics in a visual biofeedback paradigm to test young adults' ability...
Journal Articles
J Exp Biol (2018) 221 (22): jeb186700.
Published: 12 November 2018
... a range of heights. We hypothesized that increases in net work would be equally divided across hind limb joints with increases in jump height. To test this hypothesis, we used an inverse dynamics analysis to quantify the mechanical output from the hind limb joints of kangaroo rats jumping vertically...
Journal Articles
J Exp Biol (2017) 220 (9): 1729–1736.
Published: 01 May 2017
... unsteady numerical fluid flow simulations and inverse dynamics modeling. Across a threefold increase in load, total work and power significantly increased from 0.38±0.09 to 0.67±0.13 J kg –1 , and 0.47±0.06 to 1.14±0.16 W kg –1 , respectively. Shoulder and elbow equally supplied >97% of the upper limb...
Journal Articles
J Exp Biol (2017) 220 (7): 1322–1329.
Published: 01 April 2017
... medial ground reaction forces (lateral pushing from the animal) than would be expected for an upright mammal, suggesting frontal plane movement may be an important aspect of their locomotion. To examine this, we conducted an inverse dynamics analysis in the sagittal and frontal planes, using ground...
Journal Articles
J Exp Biol (2016) 219 (7): 1041–1049.
Published: 01 April 2016
... comparing them between insect groups could yield insights into evolutionary patterns and functional constraints. Here, we developed a mathematical inverse dynamic model including distinct muscles for an insect head–mandible–muscle complex based on micro-computed tomography (µCT) data and bite force...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (6): 876–886.
Published: 15 March 2015
...Karl E. Zelik; Kota Z. Takahashi; Gregory S. Sawicki ABSTRACT Measuring biomechanical work performed by humans and other animals is critical for understanding muscle–tendon function, joint-specific contributions and energy-saving mechanisms during locomotion. Inverse dynamics is often employed to...
Journal Articles
J Exp Biol (2013) 216 (20): 3906–3916.
Published: 15 October 2013
... manuscript. COMPETING INTERESTS No competing interests declared. 15 1 2013 8 7 2013 © 2013. Published by The Company of Biologists Ltd 2013 avian locomotion spring-mass joint control biomechanics inverse dynamics joint stiffness When birds increase speed during...
Journal Articles
J Exp Biol (2013) 216 (12): 2201–2212.
Published: 15 June 2013
... and work were estimated at the goats' hip, knee, ankle and metatarsophalangeal joints throughout the stance phase via inverse dynamics calculations. Differences in locomotor speed on the level, inclined and declined surfaces were characterized and accounted for by fitting regression equations to the...
Journal Articles
J Exp Biol (2009) 212 (1): 21–31.
Published: 01 January 2009
... ; Gitter et al., 1991 ; Meinders et al., 1998 ),inverse dynamics cannot separate positive work performed by plantar flexor muscles from positive work delivered by previously stored elastic energy in the Achilles' tendon. Recent studies using ultrasound have directly examined in vivo muscle–tendon...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2008) 211 (9): 1402–1413.
Published: 01 May 2008
.... * Author for correspondence (e-mail: gsawicki@umich.edu ) 19 2 2008 © The Company of Biologists Limited 2008 2008 locomotion walking metabolic cost exoskeletons ankle human efficiency inverse dynamics joint power Humans are adept at harnessing the passive dynamics of...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2007) 210 (4): 655–667.
Published: 15 February 2007
..., by using a combination of high speed imaging,kinematic and inverse dynamics analyses and electromyographic recordings from the tongue projector muscle. All three taxa require high-power output of the paired tongue projector muscles to produce the observed kinematics. Required power output peaks in...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2007) 210 (3): 383–394.
Published: 01 February 2007
... 2007 running locomotion biomechanics motor control joint work joint moment inverse dynamics We know surprisingly little about how legged animals move with such agility and dynamic stability through their varied and unpredictable natural environments. It appears that all terrestrial...
Journal Articles
J Exp Biol (2005) 208 (1): 41–53.
Published: 01 January 2005
...C. P. McGowan; R. V. Baudinette; A. A. Biewener SUMMARY Measurements of joint work and power were determined using inverse dynamics analysis based on ground reaction force and high-speed video recordings of tammar wallabies as they decelerated and accelerated while hopping over a force platform on...
Journal Articles
J Exp Biol (2002) 205 (9): 1339–1353.
Published: 01 May 2002
... during stance phase in the four kinematically relevant joints of the forelimbs (scapular pivot,shoulder joint, elbow joint, wrist joint) and the hindlimbs (hip joint, knee joint, ankle joint, intratarsal joint) were determined by inverse dynamic analysis. Kinematics were measured by cineradiography (150...