Clinical biomechanics
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Clinical biomechanics · Nov 2002
Comparative Study Clinical Trial Controlled Clinical TrialDifferentiating temporal electromyographic waveforms between those with chronic low back pain and healthy controls.
Temporal activation patterns from abdominal and lumbar muscles were compared between healthy control subjects and those with chronic low back pain. ⋯ These results provide a foundation for developing a diagnostic classifier of neuromuscular impairment associated with low back pain, that could be used to evaluate the effectiveness of therapeutic interventions to improve muscle coactivation.
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Clinical biomechanics · Nov 2002
Comparative StudyEffect of Fuji pressure sensitive film on actual contact characteristics of artificial tibiofemoral joint.
To investigate the effect of inserting a Fuji pressure sensitive film into an artificial tibiofemoral joint on the actual contact mechanics. ⋯ This study revealed that the ultra-super low grade Fuji film is a reliable sensor to measure the contact area and the medium grade film would underestimate its actual contact pressure in the artificial tibiofemoral joint. This finding can provide a better understanding of the reliability of Fuji film to measure the contact characteristics of artificial joint in the experimental test.
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Clinical biomechanics · Oct 2002
Indices of torso asymmetry related to spinal deformity in scoliosis.
To develop indices that quantify 360 degrees torso surface asymmetry sufficiently well to estimate the Cobb angle of scoliotic spinal deformity within the clinically important 5-10 degrees range. ⋯ The torso asymmetry indices developed here show a strong surface-spine relation in scoliosis, encouraging development of a model to detect scoliosis magnitude and progression from the surface shape with minimal X-ray radiation.
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Clinical biomechanics · Jul 2002
Mechanism of limitation of pronation/supination of the forearm in geometric models of deformities of the forearm bones.
To clarify the mechanism of limitation of pronation/supination of the forearm associated with the angular deformity of the forearm bones and narrowing of the interosseous space. ⋯ Evaluation of the bone deformities based on understanding this mechanism of limitation of pronation/supination would lead to an appropriate treatment of malunion of the forearm bones.
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Clinical biomechanics · Jul 2002
The effect of hydration on the stiffness of intervertebral discs in an ovine model.
To determine the hydration-over-time behaviour of ovine intervertebral discs and intact joints in a saline bath at body temperature and the effect this has on their stiffness compared to air at ambient temperature. ⋯ It has been shown that there are biomechanical and biochemical similarities between sheep and human intervertebral discs. Despite these similarities, no studies have looked at how ovine intervertebral discs behave over time in a hydrated environment. In humans, hydration levels are an important aspect of intervertebral disc degeneration. There is also a relationship between decreased hydration levels and increased stiffness. This study demonstrates the similarities between human and ovine hydration-over-time behaviour. The importance of intervertebral disc hydration and its effects on stiffness under different modes of loading were also demonstrated and have not been previously shown using the ovine model. In this context, the results from this study provide further support for the use of the ovine model.