BACKGROUND Slowness of movement is a factor that may cause a decrease of quality of daily life. Mobility in the elderly and people with movement impairments may be improved by increasing the quickness of fundamental locomotor tasks. Because it has not been revealed how much muscle strength is required to improve quickness, the purpose of this study was to reveal the relation between movement ti...

A 45-year-old woman presented with acute vertigo and a vertical gaze palsy. Examination with Frenzel goggles showed that during vertical saccades the eyes were torsionally deviating to the left (counterclockwise from the patient’s point of view) and slowly returned to the initial zero torsion after the saccade (video on the Neurology Web site at www.neurology. org; figure 1). This eye movement ...

This paper reports on the design and implementation of multi-criteria vertical handoff decision algorithms in a heterogeneous wireless wide area network (WWAN) and a wireless local area network (WLAN) environment. An “IPcentric Field Workforce Automation” project aims to ensure free movement of field workers between networks while always connected in an IP mode, and to allow a user to use one d...

When submitted to a visuomotor rotation, subjects show rapid adaptation of visually guided arm reaching movements, indicated by a progressive reduction in reaching errors. In this study, we wanted to make a step forward by investigating to what extent this adaptation also implies changes into the motor plan. Up to now, classical visuomotor rotation paradigms have been performed on the horizonta...

AIM Different jumping strategies can be used during plyometric training. Understanding how manipulating variables such as the counter-movement, flexion amplitude, the drop and the load could influence neuromuscular adaptation would be beneficial for coaches and athletes. The purpose of this study was to analyze how these variations in the vertical jump influenced kinematic and kinetic parameter...

Remembered saccades of rhesus monkeys are markedly influenced by starting eye position. Altering the initial position systematically affects the direction or amplitude of the movements to a striking degree. In general, changes in the horizontal or vertical starting position primarily produce changes in the horizontal or vertical component, respectively, regardless of whether the target displace...

Dissociated vertical divergence (DVD) is an ocular motor disorder characterized by a slow, upward drift of 1 eye when the other eye is fixating a target. I propose that DVD is a dorsal light reflex in which asymmetrical visual input to the 2 eyes evokes a vertical divergence movement of the eyes. This primitive visuo-vestibular reflex functions as a righting response to restore vertical orienta...

A vertical line stimulus was presented alternately at two positions on an oscilloscope face, with no interstimulus interval. Observation of this stimulus produced haphazard alternation between a number of movement percepts, which were divided into four categories: phi, omega and partial movement, and no movement. Attention to one category did not increase the proportion of time movement in that...

Autonomous underwater helicopter, referred to as AUH, has high maneuverability in the horizontal plane and stable movement vertical direction due its disc shape. Thus, AUH demonstrates great advantages when working scenarios that require accuracy of movement, fixed height depth, operation near seafloor, so on. In this paper, we propose a new design for an autonomous helicopter with three thrust...