Publications by authors named "T Oxland"
Article Synopsis
- This study investigates the role of paraspinal muscle dysfunction in spinal degeneration by examining surgical patients with varying degrees of spinal imbalance.
- Twelve patients were divided into three groups based on their sagittal balance and compensatory mechanisms, with muscle biopsies taken to assess contractile properties.
- The findings reveal that patients with sagittal imbalance show impaired muscle force generation, and all patients demonstrate abnormal muscle structure, shedding light on the underlying issues of muscle weakness in spinal degeneration.
Introduction: Muscles play a critical role in supporting joints during activities of daily living, owing, in part, to the phenomenon of short-range stiffness. Briefly, when an active muscle is lengthened, bound cross-bridges are stretched, yielding forces greater than what is predicted from the force length relationship. For this reason, short-range stiffness has been proposed as an attractive mechanism for providing joint stability.
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- The study investigates the biomechanical and histopathological differences in paraspinal muscles of adult spinal deformity (ASD) patients, highlighting decreased muscle strength and altered properties.
- Muscle biopsies from ASD patients revealed abnormal muscle fiber properties and high stiffness, which could significantly increase spinal loading, especially in flexed positions.
- The findings suggest that the varied muscle characteristics may contribute to functional impairment in ASD, emphasizing the importance of paraspinal muscles in managing the condition.
Paraspinal muscles are vital to the functioning of the spine. Changes in muscle physiological cross-sectional area significantly affect spinal loading, but the importance of other muscle biomechanical properties remains unclear. This study explored the changes in spinal loading due to variation in five muscle biomechanical properties: passive stiffness, slack sarcomere length (SSL), sarcomere length, specific tension, and pennation angle.
View Article and Find Full Text PDFThe purpose of this study was to determine if muscle activity of the biceps followed by isometric flexion changes T measured in the biceps. It is hypothesized that an increase in T will be observed in the biceps but not in the triceps after flexion exercise. Ten healthy volunteers were imaged with a one-channel neck coil while seated in a 0.
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