The purpose of this study was to characterize the hemodynamic responses during recovery from moderate intensity exercise in young black normotensive males. Nineteen normotensive men (age 25.0 +/- 1.0 yrs, VO2peak 48.8 +/- 1.5 ml.kg-1.min-1) walked continuously on a treadmill for 40 minutes at 50-60% heart rate reserve. Following exercise, blood pressure (by auscultation) and hemodynamic variabl...

We report 18 patients (16 women and two men) with causalgia and dystonia, triggered by peripheral injuries in 15 cases and occurring spontaneously in three. The injury was often trivial, and did not cause overt peripheral nerve lesions. The mean age at presentation was 28.5 years. None had a family history of dystonia. The leg was affected initially in 12 patients, the arm in the remaining six ...

Changes in foot and ankle posture are a normal aspect of infant and child development but may also reflect neurological conditions affecting the brain, spinal cord, peripheral nerves or muscles. Development of cavus or planus foot deformities often reflects underlying neurologic disorders and may predate development of more overt neurological signs. This session will concentrate upon signs and ...

A new species of Megasporaceae, Aspicilia nigromaculata sp. nov. is described and illustrated from Pakistan. comparative morpho-anatomical study ITS- LSU-based molecular analyses confirmed its position within the genus Aspicilia. It differs other by following set features: a well-developed, grey to greenish frequently black spotted thick thallus, well- developed thicker peripheral flat slightly...

To determine whether subjects with somatosensory loss show a compensatory increase in sensitivity to vestibular stimulation, we compared the amplitude of postural lean in response to four different intensities of bipolar galvanic stimulation in subjects with diabetic peripheral neuropathy (PNP) and age-matched control subjects. To determine whether healthy and neuropathic subjects show similar ...

Neural control of blood pressure (BP) has been reported to differ between young blacks and whites. We hypothesized that elderly blacks have enhanced sympathetic neural responses during orthostasis compared with elderly whites. Muscle sympathetic nerve activity, arm-cuff BP, and heart rate were recorded continuously, and cardiac output, stroke volume, and total peripheral resistance were measure...

Acute vestibular injury, such as vestibular neuritis (VN), can produce a profound alteration in balance manifested by perception disorder and impaired control of postural adjustment and execution of movements. Stabilometry assesses posture balance through the quantification of body oscillations from the orthostatic position in a force platform. It involves monitoring center of pressure (COP) di...

Purpose. The purpose of this study was to assess nerve hypervascularization using high resolution ultrasonography to determine the effects of wrist posture and fingertip force on median nerve blood flow at the wrist in healthy participants and those experiencing carpal tunnel syndrome (CTS) symptoms. Methods. The median nerves of nine healthy participants and nine participants experiencing symp...

Laboratory and clinical observations of patients with a large-fiber somatic sensory neuropathy indicate a dramatic inability of these patients to set accurate tonic or phasic levels of muscle activity needed to maintain static postures and to reproduce simple movements. These observations suggest that somatic sensation contributes to sensations of motor output, previously thought to be mediated...

Radial organization of nuclei with peripheral gene-poor chromosomes and central gene-rich chromosomes is common and could depend on the nuclear boundary as a scaffold or position marker. To test this, we studied the role of the ubiquitous nuclear envelope (NE) component lamin B1 in NE stability, chromosome territory position, and gene expression. The stability of the lamin B1 lamina is dependen...