To estimate the contributions of feedforward vs. feedback control systems in speech articulation, we analyzed the correspondence between initial and final kinematics in unperturbed tongue and jaw movements for consonant-vowel (CV) and vowel-consonant (VC) syllables. If movement extents and endpoints are highly predictable from early kinematic information, then the movements were most likely com...

Background Non-specific chronic low back pain (NCLBP) is a major public health and global socioeconomic burden with a variety of symptoms such as gait abnormality. Trunk stiffness and deep trunk muscles dysfunction known as guarding mechanism in gait are factors leading to abnormal movement pattern of the spine. Anterior load carriage task during gait is also challenged the trunk stability and ...

Control of Wrist and Arm Movements of Varying Difficulties. (December 2010) Jason Baxter Boyle, B.S., Texas A&M University Chair of Advisory Committee: Dr. Charles H. Shea Three experiments compared wrist and arm performance in a cyclical Fitts’ target task. The purpose of Experiment I was to determine if movement kinematics differed for wrist/elbow flexion/extension movements to targets of var...

The paper considers a technique for computation of the inverse kinematic model of the human arm for robot based rehabilitation that uses measurements of the hand position and orientation and radial acceleration of the upper arm. Analytical analysis and empirical validation of the method are presented. The algorithm enables estimation of human arm angles, which can be used in trajectory planning...

This paper investigates the kinematic differential geometry of a line trajectory in spatial movement. Specifically, we provide theoretical expression inflection congruence, which is equivalent circle planar kinematics. Additionally, introduce new proofs for Euler–Savary and Disteli formulae thoroughly analyze their equivalence.