... to the two subjects, to estimate hindlimb net joint moments using OpenSim's inverse dynamics routine ( Delp et al., 2007 ). To compare emu STS and STW, we defined phases marked by distinct events (below) and focused primarily on the onset of the movements until standing upright or initiating gait. Following...

... during human walking, as predicted by a simple dynamic walking model. Inverse dynamics Dissipation Heel strike Wobbling mass Pendulum model Metabolic cost Natural Sciences and Engineering Research Council of Canada http://dx.doi.org/10.13039/501100000038 Dr Benno Nigg...

... 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 hindlimb...

... 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...

... 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 over...

... 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 total work...

... 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...

... and 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...

...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...

... kinematic data derived from X-ray motion analysis with single limb force plate measurements during locomotion of the common quail. This permits us to evaluate both the virtual leg function during stance (CoP–CoM) and joint mechanics using inverse dynamics analysis and joint kinematics. Our second main...

... 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 joint...

... connecting exoskeleton artificial pneumatic muscles to a pressurized air source. Since our treadmill was not instrumented with force platforms, we could not compare joint powers using inverse dynamics for unpowered and powered walking to rule out redistribution of mechanical power. However, recent results...

... ). Furthermore, in a study of overground walking with unilateral knee–ankle–foot orthoses, we used an inverse dynamics analysis and found no difference in total ankle joint moment during powered versus unpowered walking ( Sawicki and Ferris, 2006 ). Thus, we are confident that during powered walking ankle...

..., 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...

... of Michigan, Ann Arbor, MI 48109, USA (e-mail: [email protected] ) 22 11 2006 © The Company of Biologists Limited 2007 2007 running locomotion biomechanics motor control joint work joint moment inverse dynamics We know surprisingly little about how legged animals move...

...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...

... 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...