Comparing the magnitude and direction of asymmetry during the squat,countermovement and drop jump tests in elite youth female soccer players

ABSTRACT

The aims of the present study were to provide an in-depth comparison of inter-limb asymmetry and determine how consistently asymmetry favours the same limb during different vertical jump tests. Eighteen elite female under-17 soccer players conducted unilateral squat jumps (SJ), countermovement jumps (CMJ) and drop jumps (DJ) on a portable force platform, with jump height, peak force, concentric impulse and peak power as common metrics across tests. For the magnitude of asymmetry, concentric impulse was significantly greater during the SJ test compared to CMJ (p = 0.019) and DJ (p = 0.003). No other significant differences in magnitude were present. For the direction of asymmetry, Kappa coefficients revealed fair to substantial levels of agreement between the SJ and CMJ (Kappa = 0.35 to 0.61) tests, but only slight to fair levels of agreement between the SJ and DJ (Kappa = ?0.26 to 0.18) and CMJ and DJ (Kappa = ?0.13 to 0.26) tests. These results highlight that the mean asymmetry value may be a poor indicator of true variability of between-limb differences in healthy athletes. The direction of asymmetry may provide a useful monitoring tool for practitioners in healthy athletes, when no obvious between-limb deficit exists.     

Re‐envisioning the Future: Democratic Citizenship Education and Islamic Education

In this article we address the issue of why democratic citizenship education should be incorporated more meaningfully into Islamic education discourses in formal institutions in the Arab and Muslim world. In the Arab and Muslim world civic and national education seem to be the dominant discourses. We argue that the latter discourses are inadequate to address some of the dystopias in the Arab and Muslim world such as the perpetuation of patriarchy, uncritical obedience to the state (often dictatorships), and blind patriotism. Consequently we posit that unless a culture of acceptance and hospitality (i.e. cosmopolitanism) is cultivated at Islamic educational institutions the possibility of democratic citizenship education unfolding is quite remote. That is, the future of Islamic education can only be re‐envisioned if an amended version of democratic citizenship education can inform Islamic education discourses in institutions—one constituted by a culture of acceptance and hospitality.     

Response Time Adjustment in the Stop Signal Task: Development in Children and Adolescents

Adjusting speed to maintain fast and accurate performance is critical to goal-directed behavior. This study examined development of response time adjustments in the stop signal task in 13,709 individuals aged 6–17 years (49.0% Caucasian) across four trial types: correct and incorrect go, successful (stop-inhibit), and failed (stop-respond) trials. People sped more after correct than incorrect go responses and slowed more after failed than successful stop trials. Greater slowing after stop-respond but less slowing after stop-inhibit trials was associated with better response inhibition. Response time adjustments were evident in children as young as age 6, developed throughout childhood, and plateaued by age 10. Results were consistent with the predictions of the error detection and shifting goal priority hypotheses for adjustments.     

Mastery motivation,parenting, and school achievement among Hungarian adolescents

European Journal of Psychology of Education - Children’s motivation to master challenging tasks is an important predictor of school success, and yet, such motivation declines during...     

Daily report cards as a school‐based intervention for children with attention‐deficit/hyperactivity disorder

This paper describes daily report cards and the evidence relating to their use in schools for children with attention‐deficit/hyperactivity disorder (ADHD). This intervention typically involves teachers evaluating a student's behaviour at school against pre‐determined targets and parents subsequently providing reinforcement at home for positive reports. Research suggests that the daily report card has been effective in treating a range of ADHD symptoms and improving school outcomes, including academic achievement in some cases. The daily report card also encourages collaboration between teachers and parents, and evidence suggests that the intervention benefits from the inclusion of reinforcement at home. Daily report cards are easy to implement and research finds that teachers consider them an acceptable intervention for ADHD. This paper also considers challenges in using daily report cards, including barriers to their use over the long‐term and the risk of stigma for children with a report card. Ideas to address these issues are suggested.     

Quantitative Research Attitudes and Research Training Perceptions Among Master's‐Level Students

This study explored master's‐level counseling students' (N = 804) perceptions of training in the Council for Accreditation of Counseling and Related Educational Programs ( 2009 ) Research and Program Evaluation standard, and their attitudes toward quantitative research. Training perceptions and quantitative research attitudes were low to moderate, with no statistical differences across program accreditation or specialty area. Implications and possibilities for future research are discussed.