48 research outputs found
Transcranial direct current stimulation (tDCS) over the left prefrontal cortex does not affect time-trial self-paced cycling performance: Evidence from oscillatory brain activity and power output
To test the hypothesis that transcranial direct current stimulation (tDCS) over the left dorsolateral
prefrontal cortex (DLPFC) influences performance in a 20-min time-trial self-paced
exercise and electroencephalographic (EEG) oscillatory brain activity in a group of trained
male cyclists. There were no differences (F = 0.31, p > 0.05) in power output between the stimulation conditions:
anodal (235W[95%CI 222â249 W]; cathodal (235W[95%CI 222â248 W] and sham (234W[95%CI 220â248 W]. Neither heart rate, sRPE nor EEG activity were affected
by tDCS (all Ps > 0.05). tDCS over the left DLFC did not affect self-paced exercise performance in trained cyclists.
Moreover, tDCS did not elicit any change on oscillatory brain activity either at baseline or
during exercise. Our data suggest that the effects of tDCS on endurance performance
should be taken with caution.This project was supported by grants
from from the Spanish Ministerio de EconomĂa,
Industria y Competitividad-PSI2016-75956-P to D.
S. and M.Z., a predoctoral grant from the Spanish
Ministerio de EconomĂa, Industria y Competitividad (BES-2014-069050) to L.F.C., and a Spanish
âMinisterio de EducaciĂłn, Cultura y Deporteâ
predoctoral grant (FPU14/06229) to D.H. The
funders had no role in study design, data collection
and analysis, decision to publish, or preparation of
the manuscript
The implementation and evaluation of a media literacy intervention about PAES use in sport science students
With respect to both competitive and amateur/fitness sports, media may strongly influence young peopleâs opinions and behaviors concerning the use of PAES (Performance and Appearance Enhancing Substances). The present investigation addressed this topic by focusing on sport sciences studentsâ beliefs concerning the possible role of media related to the implementation and evaluation of a PAES-focus media literacy intervention conducted with sport science students. This study relied on a sample of 521 students (attrition rate 10.3%) (45.1% female, mean age = 22.6, SD = 2.20), which provided baseline data on studentsâ levels of media literacy concerning the use of PAES (i.e. âdescriptive sampleâ), and a sample of 248 students, who participated in and provided data on the media literacy intervention. This latter sample included a group of 128 students (44.5% female, mean age = 23.03, SD = 3.76) who actively participated in the intervention (i.e. âintervention groupâ), and a group of 120 students who did not (i.e. âcontrol groupâ, 53.3% female, mean age = 22.25, SD = 2.47). All students filled out media literacy questionnaires targeting studentsâ awareness of media influence, their views about the realism of media content, their sense of confidence in dealing with media messages, and their positive attitudes toward PAES use. Analyses of questionnaire data showed that students are relatively aware of media influence on peopleâs views and behaviors with respect to PAES use. At the same time, students also believed that young people do not consider media as ârealistic sourcesâ of information; nonetheless, they also did not consider themselves entirely capable of dealing effectively with media messages. With respect to the intervention, students overall appreciated and greatly welcomed the educational program on media literacy, and the analyses of intervention data across intervention and control groups showed that key media literacy variables changed over time, attesting to the overall effectiveness of the intervention
Transcranial direct current stimulation (tDCS) over the left prefrontal cortex does not affect time-trial self-paced cycling performance: Evidence from oscillatory brain activity and power output
Objectives: To test the hypothesis that transcranial direct current stimulation (tDCS) over the left dorsolateral prefrontal cortex (DLPFC) influences performance in a 20-min time-trial self-paced exercise and electroencephalographic (EEG) oscillatory brain activity in a group of trained male cyclists. Design: The study consisted of a pre-registered (https://osf.io/rf95j/), randomised, sham-controlled, single-blind, within-subject design experiment. Methods: 36 trained male cyclists, age 27 (6.8) years, weight 70.1 (9.5) Kg; VO2max: 54 (6.13) ml.min-1.kg-1, Maximal Power output: 4.77 (0.6) W/kg completed a 20-min time-trial self-paced exercise in three separate sessions, corresponding to three stimulation conditions: anodal, cathodal and sham. tDCS was administered before each test during 20-min at a current intensity of 2.0 mA. The anode electrode was placed over the DLPFC and the cathode in the contralateral shoulder. In each session, power output, heart rate, sRPE and EEG (at baseline and during exercise) was measured. Results: There were no differences (F = 0.31, p > 0.05) in power output between the stimulation conditions: anodal (235 W [95%CI 222â249 W]; cathodal (235 W [95%CI 222â248 W] and sham (234 W [95%CI 220â248 W]. Neither heart rate, sRPE nor EEG activity were affected by tDCS (all Ps > 0.05). Conclusion: tDCS over the left DLFC did not affect self-paced exercise performance in trained cyclists. Moreover, tDCS did not elicit any change on oscillatory brain activity either at baseline or during exercise. Our data suggest that the effects of tDCS on endurance performance should be taken with caution
VectAbundance: a spatio-temporal database of Aedes mosquitoes observations
Modelling approaches play a crucial role in supporting local public health agencies by estimating and forecasting vector abundance and seasonality. However, the reliability of these models is contingent on the availability of standardized, high-quality data. Addressing this need, our study focuses on collecting and harmonizing egg count observations of the mosquito Aedes albopictus, obtained through ovitraps in monitoring and surveillance efforts across Albania, France, Italy, and Switzerland from 2010 to 2022. We processed the raw observations to obtain a continuous time series of ovitraps observations allowing for an extensive geographical and temporal coverage of Ae. albopictus population dynamics. The resulting post-processed observations are stored in the open-access database VectAbundance.This initiative addresses the critical need for accessible, high-quality data, enhancing the reliability of modelling efforts and bolstering public health preparednes
Piattaforme peer-to-peer nellâambito della cura: cosa puĂČ insegnare lâesperienza del Regno Unito allâItalia.
Lâesperienza di alcune piattaforme britanniche attive nel settore medico-sanitario
sta dimostrando la capacitĂ di sostenere lo scambio di informazioni tra pazienti
e loro famiglie, ma anche di migliorare la qualitĂ degli interventi