نتایج جستجو برای: movement kinematic analysis

تعداد نتایج: 2965459  

2015
Arash Rahmani Ahmad Ghanbari Mehran Mahboubkhah

This contribution addresses forward kinematic solution of modular hybrid manipulator which includes two same Stewart mechanism in serial form known as 2-(6UPS) manipulator. First, using geometrical and vectorial analysis, mathematical model of kinematic analysis for 2-(6UPS) is extracted. As mapping the length of pods to location (orientation and position) of moving mid and upper platforms (for...

Journal: : 2021

The presented paper deals with the use of computer simulation in design a robot model 4 degrees freedom movement. MSC Adams program is used simulation, and Matlab also shown. robot's mechanism an open kinematic chain. During analysis, attention paid to solving direct problem kinematics Matlab. result solution calculated trajectory movement selected point end effector. shown graphical form. In M...

Journal: :Consciousness and cognition 2013
Erin K Cressman Melanie Y Lam Ian M Franks James T Enns Romeo Chua

We asked whether the influence of an invisible prime on movement is dependent on conscious movement expectations. Participants reached to a central target, which triggered a directional prime-mask arrow sequence. Participants were instructed that the visible arrows (masks) would most often signal a movement modification in a specific (biased) direction. Kinematic analyses revealed that response...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
H I Krebs M L Aisen B T Volpe N Hogan

Segmentation of apparently continuous movement has been reported for over a century by human movement researchers, but the existence of primitive submovements has never been proved. In 20 patients recovering from a single cerebral vascular accident (stroke), we identified the apparent submovements that composed a continuous arm motion in an unloaded task. Kinematic analysis demonstrated a submo...

Journal: :Journal of speech, language, and hearing research : JSLHR 2002
Jeri A Logemann Barbara Roa Pauloski Alfred W Rademaker Peter J Kahrilas

Much of the initial research on normal swallowing has been conducted in young men. Recently, there has been increasing interest in determining whether there are differences between the sexes in swallowing function and in the effects of aging on swallowing in both sexes. This investigation examined the swallowing ability of 8 healthy young women between the ages of 21 and 29 and 8 healthy older ...

2016
Fanny Barlaam Marianne Vaugoyeau Carole Fortin Christine Assaiante Christina Schmitz

During action, Anticipatory Postural Adjustments (APAs) cancel the consequences of a movement on postural stabilization. Their muscular expression is characterized by early changes in the activity of the postural muscles, before the movement begins. To explore the mechanisms enabling the acquisition of APAs, a learning paradigm was designed in which the voluntary lifting of a load with one hand...

Journal: :Human movement science 2009
M Djioua R Plamondon

The variability observed in handwriting patterns is analyzed from the perspective of integrating the resulting motor control knowledge in the design of more powerful handwriting recognizers in personal digital assistants (PDAs) and smartphones. Using the highest representational level of the Kinematic Theory of Rapid Human Movement, the Sigma-Lognormal model, this article reports basic theoreti...

Journal: :Attention, perception & psychophysics 2012
Jonathon Headrick Ian Renshaw Ross A Pinder Keith Davids

This study examined the perceptual attunement of relatively skilled individuals to the physical properties of striking implements in the sport of cricket. We also sought to assess whether utilizing bats with different physical properties would influence performance of a specific striking action: the front foot straight drive. Eleven skilled male cricketers (mean age = 16.6 ± 0.3 years) from an ...

Journal: :Journal of biomechanics 2006
Brooke Hingtgen John R McGuire Mei Wang Gerald F Harris

Quantification of rehabilitation progress is necessary for accurately assessing clinical treatments. A three-dimension (3D) upper extremity (UE) kinematic model was developed to obtain joint angles of the trunk, shoulder and elbow using a Vicon motion analysis system. Strict evaluation confirmed the system's accuracy and precision. As an example of application, the model was used to evaluate th...

2018
Hrishikesh M. Rao Rajan Khanna David J. Zielinski Yvonne Lu Jillian M. Clements Nicholas D. Potter Marc A. Sommer Regis Kopper Lawrence G. Appelbaum

Sensorimotor learning refers to improvements that occur through practice in the performance of sensory-guided motor behaviors. Leveraging novel technical capabilities of an immersive virtual environment, we probed the component kinematic processes that mediate sensorimotor learning. Twenty naïve subjects performed a simulated marksmanship task modeled after Olympic Trap Shooting standards. We m...

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