Search results for "movement."
showing 9 items of 1979 documents
Role of Gender, Enjoyment, Perceived Competence, and Fundamental Movement Skills as Correlates of the Physical Activity Engagement of Finnish Physica…
2010
The aim of the study was to investigate the relationships between enjoyment, perceived physical activity competence, fundamental movement skills, and physical activity engagement of Grade 7 students participating in Finnish physical education. A secondary aim of the study was to examine gender differences in all assessed variables. The participants of the study were 404 Grade 7 students aged 13 years. The sample comprised 210 girls and 194 boys, who were involved in 23 classes taught by 10 physical education teachers at three secondary schools. Physical activity engagement, enjoyment, and perceived physical activity competence were assessed by self-report questionnaires. Locomotor skill was…
Motor action execution in reaction-time movements : Magnetoencephalographic study
2019
OBJECTIVE: Reaction-time movements are internally planned in the brain. Presumably, proactive control in reaction-time movements appears as an inhibitory phase preceding movement execution. We identified the brain activity of reaction-time movements in close proximity to movement onset and compared it with similar self-paced voluntary movements without external command. DESIGN: We recorded 18 healthy participants performing reaction-time and self-paced fast index finger abductions with 306-sensor magnetoencephalography and electromyography. Reaction-time movements were performed as responses to cutaneous electrical stimulation delivered on the hand radial nerve area. Motor field and movemen…
Anticipatory Postural Adjustments and kinematic arm features when postural stability is manipulated
2018
International audience; Beyond the classical paradigm that presents the Anticipatory Postural Adjustments (APAs) as a manner to create forces that counteract disturbances arising from the moving segment during a pointing task, there is a controversial discussion about the role APAs to facilitate the movement and perform a task accurately. In addition, arm kinematics features are classically used to infer the content of motor planning for the execution and the control of arm movements, The present study aimed to disentangle the conflicting role of APAs during an arm-pointing task in which the subjects reach a central diode that suddenly turns on, while their postural stability was manipulate…
HIGH-RESOLUTION SEISMIC SURVEY IN THE WESTERN CALABRIA AND EASTERN SICILY OFFSHORE: IMPLICATIONS WITH VERTICAL TECTONICS
2016
High-resolution seismic data acquired along the continental shelf/upper slope offshore of Capo Vaticano (western Calabria), Milazzo Promontory and Mt. Etna (eastern Sicily) allow to provide new insights on vertical mobility related to active tectonics. A number of depositional sequences bounded by unconformities or correlative para-conformities were recognized on Sparker profiles in the first 200-300 m below the sea-floor. The most recent sequence overlays a widespread erosional surface that ostensibly formed during the sea level stillstand of the Last Glacial Maximum (LGM), whereas a stack of depositional sequences, which are interpreted as representing the falling and low-stand systems tr…
Modele eklezjalnej jedności chrześcijan
2018
Dla rozwoju ruchu ekumenicznego potrzeba modeli określających możliwości jednoczenia się chrześcijan. Dialogi ekumeniczne pokazują, że w prawie każdym Kościele chrześcijańskim wyobrażenia o jedności są różne. Z problemem braku jednej wizji jedności łączy się drugi – brak jednego pojęcia Kościoła, a przynajmniej brak takiego jego rozumienia, które byłoby akceptowane przez wszystkich chrześcijan. Trzeci problem związany jest z dwoma poprzednimi i dotyczy ekumenicznej hermeneutyki, która jest uzależniona od różnych eklezjalnych modeli jedności. Wyznaniowe uwarunkowania sprawiają, że inną wizję jedności mają prawosławni, inną protestanci, a jeszcze inną katolicy. Artykuł prezentuje głównie w op…
Regulation of motility of cells from marine sponges by calcium ions
1996
Sponges are known not to contain muscle and nerve cells. Since sponge cells are characterized by high motility we determined the effect of intracellular calcium ion concentration ([Ca2+]i) on their motility. Addition of the Ca2+ ionophore ionomycin to dissociated cells from the marine sponge Suberites domuncula caused in Ca(2+)-containing artificial seawater (ASW) an increase in motility from 0.2 micron/min (absence of the ionophore) to 3.7 microns/min (presence of ionomycin). When the experiments were performed in Ca(2+)-free medium, no effect of ionomycin could be observed. In parallel experiments the changes of [Ca2+]i using the dye Fura-2 were measured. The experiments revealed that ion…
Social movements and Bourdieu : class, embodiment and the politics of identity
2013
Prawo do zabezpieczenia emerytalnego - prawem obywatela Unii Europejskiej
2016
Audzēkņu instrumentspēles prasmju un ķermeņa darbības pilnveides mijsakarības trombona spēles mācību procesā mūzikas skolā
2015
Trombona spēles pedagoģija bieži vien izmanto paņēmienus un metodes, kas ir pretrunā ar cilvēka ķermeņa darbības fizioloģiskajiem principiem un var gan kavēt un ierobežot instrumentspēles prasmju attīstību, gan radīt kaitējumus mūziķa veselībai. Ārvalstu mūzikas pedagoģijas zinātniskajā literatūrā arvien lielāks uzsvars tiek likts uz cilvēka darbības psiholoģisko un fizioloģisko mehānismu un likumsakarību integrēšanu pedagoģiskajā procesā. Arī trombona spēles prasmju pilnveidi nepieciešams balstīt cilvēka ķermeņa darbības pamatprincipos. Mērķis: izpētīt trombona spēles prasmju pilnveides teorētiskos aspektus un izstrādāt ķermeņa darbības psihofizioloģiskajos pamatprincipos balstītu vingrinā…