Clinical biomechanics
-
Clinical biomechanics · Mar 2005
Comparative Study Clinical Trial Controlled Clinical TrialEvaluation of efficacy and 3D kinematic characteristics of cervical orthoses.
Cervical orthoses are often prescribed for both extrication stabilization of trauma patients and a treatment option of injuries to the cervical spine. The objective of this study was to compare effectiveness of two new and two established cervical orthoses in restricting 3D range of motion in the cervical spine. ⋯ The results suggested that C-Breeze and XTW along with the Miami J and Aspen collars are effective in restricting range of motion in the cervical spine. The two new cervical orthoses also performed either comparably as or better than the two established cervical orthoses.
-
Clinical biomechanics · Mar 2005
Comparative StudyRegional morphology of the transversus abdominis and obliquus internus and externus abdominis muscles.
The mechanisms by which the abdominal muscles move and control the lumbosacral spine are not clearly understood. Descriptions of abdominal morphology are also conflicting and the regional anatomy of these muscles has not been comprehensively examined. The aim of this study was to investigate the morphology of regions of transversus abdominis and obliquus internus and externus abdominis. ⋯ This study provides quantitative data of morphological differences between regions of the abdominal muscles, which suggest variation in function between muscle regions. Precise understanding of abdominal muscle anatomy is required for incorporation of these muscles into biomechanical models. Furthermore, regional variation in their morphology may reflect differences in function.
-
Clinical biomechanics · Mar 2005
Comparative Study Clinical TrialRelationship between the thickness and hemodynamics of the erector spinae muscles in various lumbar curvatures.
There is little information about the relationship between the changes of hemodynamics and the morphologic changes of the erector spinae muscle. ⋯ The erector spinae muscles' thickness, tissue blood volume, and its oxygenation are simultaneously increased during relaxed extension and decreased during relaxed flexion, as shown by non-invasive near-infrared spectroscopy and ultrasonography. Changes in hemodynamics and morphology of the erector spinae muscles in asymptomatic subjects are given for further research on the pathomechanism of back pain.