Theories of motor learning predict that training a movement reduces the amount of attention needed for its performance (i.e., more automatic). If training one movement transfers, then the amount of attention needed for performing a second movement should also be reduced, as measured under dual task conditions. The authors' purpose was to test whether dual task paradigms are feasible for detecti...

BACKGROUND This randomized controlled pilot study aimed to explore whether a cognitive-motor exercise program that combines traditional physical exercise with dance video gaming can improve the voluntary stepping responses of older adults under attention demanding dual task conditions. METHODS Elderly subjects received twice weekly cognitive-motor exercise that included progressive strength a...

In daily life, mobility requires walking while performing a cognitive or upper-extremity motor task. Although previous studies have evaluated the effects of dual tasks on gait performance, few studies have evaluated cortical activation and its association with gait disturbance during dual tasks. In this study, we simultaneously assessed gait performance and cerebral oxygenation in the bilateral...

An electric vehicle uses multiple energy-storage systems to power the traction motor. Dual-source inverters (DSIs) are used for single-stage conversion by skipping dc/dc boost converter stage; therefore, eliminating passive magnetic storing element which improves overall efficiency of drive; moreover, improve density system. This article discusses fine control a motor from zero speed rated supp...

This paper presents an indirect matrix converter (IMC) topology for hybrid electric vehicle (HEV) application with three-phase and single-phase outputs. The HEV includes mechanical, electrical, control, and electrochemical systems among others. In the mechanical system, a traction motor and a compressor motor are used to drive the HEV. The traction motor and the compressor motor are usually ope...

Parallel inverters are often used to meet system power requirements beyond the capacity of the largest single structure. They have also been used to reduce harmonics, reduce PWM switching frequency and increase available output voltage or frequency. The type of parallel structure depends on the construction of the load motor, the most prevalent are dual three phase machines, split-phase machine...

An in vitro model was used to test a hypothesis that the manual (apex locator) and motor-driven (apex locator-controlled handpiece) operating modes of 3 newly developed apex-locator-controlled handpiece devices (Dentaport ZX, Endomaster, XSmart Dual) give the same working length. The depth of penetration of the file into the root canal was measured using a digital micrometer and the distance of...

Early detection of gait impairments in older adults allows the early uncovering fall risk and/or cognitive deficits, resulting timely interventions. Dual-task paradigms have been shown to be more sensitive than single-task conditions for subtle yet relevant impairments. Can a system - encompassing pair instrumented insoles and customized mobile app transparently accurately study ecological walk...

The purpose of this study was to compare performance children with Developmental Coordination Disorder (DCD) and typically developing (TD) in a dual task paradigm dynamic balance on the Wii Fit as primary concurrent cognitive (counting) or bimanual fine motor secondary tasks. Using cross-sectional design, 25 DCD 38 TD were assessed Movement Assessment Battery for Children, 2nd edition (MABC-2) ...

Introduction: Based on the literature, unihemispheric concurrent dual-site anodal transcranial Direct Current Stimulation (a-tDCSUHCDS) of primary Motor cortex (M1) and Dorsolateral Prefrontal Cortex (DLPFC) would be more efficient than conventional a-tDCS of M1 to induce larger and longer-lasting M1 corticospinal excitability. The main objective of the present study was to compare the effects ...