Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Spinal Stability"”.
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Effects of Seated Whole-Body Vibration on Spinal Stability Control
… by increased kinematic variance and non-linear stability control measures during unstable sitting. These findings imply an impairment in spinal stability control. The purpose of the second study was to measure the effect of seated whole-body vibration on the parameters of spinal stability …
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Role of Intrinsic and Reflexive Dynamics in the Control of Spinal Stability
Spinal stability describes the ability of the neuromuscular system to maintain equilibrium in the presence of kinematic and control variability, and may play an important role in the etiology of low-back disorders (LBDs). The primary mechanism for the neuromuscular control of spinal stability is …
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Pushing/Pulling Exertions Disturb Trunk Postural Stability
The stability of the spine can be estimated from kinematic variability and nonlinear analyses of seated balance tasks. However, processing methods require sufficient signal duration and test-retest experiments require that the assessment must be reliable. Our goal was to characterize the …
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Low Back Biomechanical Analysis of Isometric Pushing and Pulling Tasks
… suggest that co-contraction of the of the paraspinal muscles is necessary to stabilize the spine during pushing exertions. We hypothesized greater levels of co-contraction during pushing exertions. Co-contraction of trunk musculature was quantified during isometric pushing and pulling tasks. …
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Experimental and Simulation Based Dynamic Assessment of Flexion and Extension Movements of Torso
… dynamic trunk movements, muscle fatigue, and spinal instability are identified as major risk factors for developing low back pain. Dynamic stability and muscle forces during trunk flexion-extension movements are studied in this dissertation. Torso muscle fatigue is known to affect the …
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Prolonged Lumbar Flexion Disturbs Paraspinal Reflex Behavior
… flexion disturbs neuromuscular control of paraspinal muscles. This disturbance was linked to creep deformation of passive spinal tissues. Past research indicates that disturbance of paraspinal reflexes may limit spinal stability. The current study aimed to examine this behavior in humans. We …
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Biomechanics of the canine thoracolumbar spine in lateral bending
… processes and surgical manipulations of the spinal column may result in alterations of the biomechanical properties of the spine through increases or decreases in the range of motion or stability of the spine. A decrease in range of motion between two adjacent vertebrae subsequent to …
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Post fatigue changes in the stability of cervical spine
… induce neck muscle fatigue which may affect the stability of the cervical spine. A less stable spine can be both a cause and consequence of spinal pain. The effect of muscle fatigue on the stability of the cervical spine is currently not well understood. The objective in this study was to …
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Biodynamic Analysis of Human Torso Stability using Finite Time Lyapunov Exponents
… Low back injury can result from a loss of torso stability causing excessive strain in soft tissue. This investigation seeks to apply existing methods to new applications and to develop new methods to assess torso stability. First, the time series averaged finite time Lyapunov exponent is …