Clinical biomechanics
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Clinical biomechanics · Jul 2004
Randomized Controlled Trial Clinical TrialEffects of experimentally induced pain and fear of pain on trunk coordination and back muscle activity during walking.
To examine the effects of experimentally induced pain and fear of pain on trunk coordination and erector spinae EMG activity during gait. ⋯ Variability of EMG data and kinematics may explain pain-dependent alterations of motor control, which in turn might contribute to a further understanding of the development of movement impairments in low back pain.
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Clinical biomechanics · Jul 2004
Effects of glenohumeral rotations and translations on supraspinatus tendon morphology.
The purpose of this study was to evaluate the effects of glenohumeral rotations and humeral head translations on supraspinatus tendon morphology. ⋯ The results support the epidemiologic evidence linking external rotation and abduction to supraspinatus tendon disorders.
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Clinical biomechanics · Jun 2004
Clinical Trial Controlled Clinical TrialGait coordination in pregnancy: transverse pelvic and thoracic rotations and their relative phase.
To examine the effects of pregnancy on the coordination of transverse pelvic and thoracic rotations during gait. ⋯ The present study shows that gait in healthy pregnancy is remarkably normal, but some differences in pelvis-thorax coordination were detected. In healthy pregnancy, anti-phase pelvis-thorax coordination appears difficult, but less so than in pregnancy-related pelvic girdle pain. Better understanding of gait in healthy pregnancy may provide insight into the gait problems of women with pregnancy-related pelvic girdle pain.
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Clinical biomechanics · Jun 2004
Comparative StudyThe mechanical effects of intervertebral disc lesions.
To determine the mechanical effect of individual concentric tears, radial tears and rim lesions of the intervertebral disc anulus. ⋯ These changes may lead to overloading of the spinal ligaments, muscles and zygapophysial joints, possibly damaging these structures. This suggests a mechanism for a cycle of degeneration that is instigated by small changes in the mechanical integrity of the intervertebral disc.
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Clinical biomechanics · May 2004
Comparative Study Clinical TrialThe relationship between EMG and change in thickness of transversus abdominis.
To investigate the relationship between changes in thickness and EMG activity in the transversus abdominis muscle of healthy subjects and the reliability of ultrasound measurements using different modes and transducers. ⋯ Ultrasound scanning can be used in the clinical setting to provide objective information about transversus abdominis function.