Search results for "Motor"
showing 10 items of 3137 documents
Seksualny dobrostan a satysfakcja z życia osób z niepełnosprawnością ruchową - moderacyjna rola samooceny
2022
Wstęp: Obecność i postęp niepełnosprawności wymaga od osoby nią dotkniętej nowego sposobu funkcjonowania, który charakteryzuje się ograniczonymi możliwościami zmagania się z problemami dnia codziennego. Metaanalizy badań pokazują, że nabycie lub posiadanie niepełnosprawności fizycznej może w negatywny sposób kształtować samoocenę i ogólny dobrostan. Wyniki zawarte w dostępnych publikacjach wskazują na związki między samooceną, satysfakcją seksualną i dobrostanem wśród osób z niepełnosprawnością fizyczną. Celem niniejszej pracy jest zweryfikowanie roli samooceny w relacji pomiędzy dobrostanem seksualnym a satysfakcją z życia osób z niepełnosprawnością motoryczną. Materiał i metody: W badaniu…
Design and Performance Evaluation of a High Power-Density EMI Filter for PWM Inverter-Fed Induction-Motor Drives
2016
This paper presents the design of an electromagnetic interference (EMI) filter for a low-voltage high-current induction-motor drives supplied by dc power grids. In order to effectively design the EMI filter, a suitable common-mode/differential-mode (CM/DM) separation technique has been used. Due to the high operating currents, the software-based separation technique using time-domain measurements has been applied. The proposed technique allows the CM and DM sections of the EMI filter to be properly selected in a more economical way, i.e., without the need of a dedicated hardware or costly radio frequency (RF) instrumentation. The design has been done according to a power-density criterion. …
Demo 41. Motor eléctrico
2013
Objetivo: Construir y observar un motor que convierte energía eléctrica y magnética en mecánica
Reliability of transcranial magnetic stimulation and H-reflex measurement during balance perturbation tasks
2022
Following ankle movement, posterior balance perturbation evokes short- (SLR ∼30–50 ms), medium- (MLR ∼50–60 ms), and long-latency responses (LLR ∼70–90 ms) in soleus muscle before voluntary muscle contraction. Transcranial magnetic stimulation (TMS) and Hoffmann-reflex (H-reflex) measurements can provide insight into the contributions of corticospinal and spinal mechanisms to each response. Motor evoked potential (MEP) and H-reflex responses have shown good reliability in some dynamic muscle contraction tasks. However, it is still unclear how reliable these methods are in dynamic balance perturbation and corticospinal modulation during long amplitude balance perturbation tasks. 14 subjects …
Hands-feet wireless devices: Test-retest reliability and discriminant validity of motor measures in Parkinson's disease telemonitoring
2022
Background Telemonitoring, a branch of telemedicine, involves the use of technological tools to remotely detect clinical data and evaluate patients. Telemonitoring of patients with Parkinson's disease (PD) should be performed using reliable and discriminant motor measures. Furthermore, the method of data collection and transmission, and the type of subjects suitable for telemonitoring must be well defined. Objective To analyze differences in patients with PD and healthy controls (HC) with the wearable inertial device SensHands-SensFeet (SH-SF), adopting a standardized acquisition mode, to verify if motor measures provided by SH-SF have a high discriminating capacity and high intraclass corr…
Motoriikan havainnointilomake (MOQ-T) suomalaisille opettajille - Motor Observation Questionnaire for Teachers -lomakkeen kulttuurinen kääntäminen
2015
Motorisen oppimisen vaikeuksia kuvaava termistö on hyvin kirjavaa. Suomessa ongelmien diagnosoinnissa käytetään käsitteitä kehityksellinen koordinaatiohäiriö ja motoriikan kehityshäiriö. Lapsia, joilla on motorisen oppimisen ongelmia, arvioidaan olevan noin 5–6 prosenttia ikäluokasta; jokaisessa koululuokassa on siis keskimäärin yksi oppilas, joka tarvitsee motoriseen oppimiseensa tukea. Vaikka häiriö on yleinen, liikuntaa opettavilta opettajilta puuttuu työkalut motoriikan oppimisvaikeuden tunnistamiseen kouluympäristössä. Tämän tutkimuksen tarkoituksena oli tehdä kulttuurinen käännös hollantilaisesta opettajille kehitetystä Motor Observation Questionnaire for Teachers (MOQ-T) -lomakkeesta…
Resting State EEG Directed Functional Connectivity Unveils Changes in Motor Network Organization in Subacute Stroke Patients After Rehabilitation
2022
Brain plasticity and functional reorganization are mechanisms behind functional motor recovery of patients after an ischemic stroke. The study of resting-state motor network functional connectivity by means of EEG proved to be useful in investigating changes occurring in the information flow and find correlation with motor function recovery. In the literature, most studies applying EEG to post-stroke patients investigated the undirected functional connectivity of interacting brain regions. Quite recently, works started to investigate the directionality of the connections and many approaches or features have been proposed, each of them being more suitable to describe different aspects, e.g.,…
Neural Correlates of Age-Related Changes in Precise Grip Force Regulation: A Combined EEG-fNIRS Study
2020
Motor control is associated with suppression of oscillatory activity in alpha (8–12 Hz) and beta (12–30 Hz) ranges and elevation of oxygenated hemoglobin levels in motor-cortical areas. Aging leads to changes in oscillatory and hemodynamic brain activity and impairments in motor control. However, the relationship between age-related changes in motor control and brain activity is not yet fully understood. Therefore, this study aimed to investigate age-related and task-complexity-related changes in grip force control and the underlying oscillatory and hemodynamic activity. Sixteen younger [age (mean ± SD) = 25.4 ± 1.9, 20–30 years] and 16 older (age = 56.7 ± 4.7, 50–70 years) healthy men were…