scholarly journals Kinematic analysis of preterm newborns' spontaneous movements for postural activity assessment

2015 ◽  
Vol 159 (4) ◽  
pp. 657-660
Author(s):  
Jan Halek ◽  
Anita Muckova ◽  
Zdenek Svoboda ◽  
Miroslav Janura ◽  
Jana Marikova ◽  
...  
Keyword(s):  
Kinematic Analysis ◽  
Postural Activity ◽  
Activity Assessment ◽  
Spontaneous Movements ◽  
Preterm Newborns

scholarly journals Kinematic Analysis of Kicking Movements in Preterm Infants With Very Low Birth Weight and Full-Term Infants

2002 ◽  
Vol 82 (2) ◽  
pp. 148-159 ◽  
Author(s):  
Suh-Fang Jeng ◽  
Li-Chiou Chen ◽  
Kuo-Inn Tsou Yau
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Preterm Infants ◽  
Gestational Age ◽  
Kinematic Analysis ◽  
Very Low Birth Weight ◽  
Full Term ◽  
Coordination Pattern ◽  
Term Infants ◽  
Spontaneous Movements

Abstract Background and Purpose. Study of kicking development provides important information to understand how early spontaneous movements change in infants as they acquire voluntary control. Researchers have investigated the kicking movements of preterm infants; however, the movement patterns that they have described were inconsistent. The purpose of this study, therefore, was to examine the development of kicking movements with kinematic analysis in preterm infants with very low birth weight (VLBW) and full-term infants. Subjects and Methods. Twenty-two infants with VLBW who were divided into low gestational age (gestational age of <30 weeks, n=9) and high gestational age (gestational age of ≥30 weeks, n=13) classes and 22 full-term infants were evaluated during kicking movements using 4 synchronized cameras and 3-dimensional kinematic analysis when the infants were 2 and 4 months of corrected age. Results. The infants with VLBW and a high gestational age showed similar kicking movements compared with the full-term infants. In contrast, the infants with VLBW and a low gestational age exhibited a higher kick frequency and a shorter flexion phase at 4 months of corrected age. They also exhibited a higher hip-knee correlation and lower variability in the interlimb coordination pattern at 2 and 4 months of corrected age. Discussion and Conclusion. The findings indicate that infants with VLBW, particularly those with a low gestational age, have age-related differences in movement organization and coordination of kicking compared with full-term infants.

Kinematic Approximations in TED and RHEED Analysis of Reconstructed Surfaces

1990 ◽  
Vol 48 (2) ◽  
pp. 396-397
Author(s):  
L. -M. Peng ◽  
M. J. Whelan
Keyword(s):  
Electron Diffraction ◽  
Kinematic Analysis ◽  
Incident Beam ◽  
High Energy ◽  
Energy Electron ◽  
Great Success ◽  
High Energy Electron ◽  
Kinematic Approximation ◽  
Reconstructed Surfaces

In recent years there has been a trend in the structure determination of reconstructed surfaces to use high energy electron diffraction techniques, and to employ a kinematic approximation in analyzing the intensities of surface superlattice reflections. Experimentally this is motivated by the great success of the determination of the dimer adatom stacking fault (DAS) structure of the Si(111) 7 × 7 reconstructed surface.While in the case of transmission electron diffraction (TED) the validity of the kinematic approximation has been examined by using multislice calculations for Si and certain incident beam directions, far less has been done in the reflection high energy electron diffraction (RHEED) case. In this paper we aim to provide a thorough Bloch wave analysis of the various diffraction processes involved, and to set criteria on the validity for the kinematic analysis of the intensities of the surface superlattice reflections.The validity of the kinematic analysis, being common to both the TED and RHEED case, relies primarily on two underlying observations, namely (l)the surface superlattice scattering in the selvedge is kinematically dominating, and (2)the superlattice diffracted beams are uncoupled from the fundamental diffracted beams within the bulk.

Kinematic analysis of locomotion following traumatic brain injury in rodents

2008 ◽  
Author(s):  
Connie E. Myerson ◽  
Eniko K. Toth ◽  
Joseph M. Wasserman ◽  
W.D. Dietrich ◽  
Edward J. Green
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Kinematic Analysis
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