The aim of this study was to investigate the relationship between muscle properties (MP) and force production (F) during a sprint running acceleration phase in 18 male sprinters (Age: 24.4±4 years; personal best: 10.66±0.5 s). MP (muscle thickness, fascicle length and pennation angle) of the lower limb muscles were measured by B-mode ultrasonography and F was modelled at each instant by derivat...

Absrract The number uf afferent fibers in a peripheral nerve fascicle and the electrical volume conduction in neuraI tissue determine the interelectrode spacing, needed for selective recording with mufticontact devices. These factors taking into account, and also assuming uniform distribution of fibers throughout the fascicle cross section, it is calculated that for selective sensing in peronea...

Following ouabain-induced degeneration, the neural retina and the retinotectal axons regenerate. The pathways of regenerated retinal ganglion cell axons in retina and in tectum are visualized by labeling with horseradish peroxidase (HRP) applied to the optic nerve. In retina, the axons exhibit highly abnormal courses, including extensive fascicle crossing, hairpin loops and circular routes. In ...