排序方式: 共有125条查询结果,搜索用时 378 毫秒
21.
This paper sets out to appraise (from the perspective of members) the impact of a localized, football-based mental health intervention. Commissioned in late 2015, the ‘Redcar and Cleveland Boot Room (BR)’ was implemented in response to mass redundancy in the local area, coupled with regional suicide rates in men that exceed the national average. Interactive discussions with BR members revealed that: (a) the language of football and shared identity were important for initiating and sustaining engagement in the BR; (b) peer-support and mentoring combined with member-led activities were active ingredients of the BR and (c) that the BR was an effective vehicle for building mental health resilience. This evaluation adds to the evidence base on the value of football as a context to engage adult males in community-based interventions targeting mental health resilience. 相似文献
22.
23.
Charles A. J. Macaulay Pro Stergiou Darren Stefanyshyn Luciano Tomaghelli 《Journal of sports sciences》2017,35(23):2350-2356
Lacrosse requires the coordinated performance of many complex skills. One of these skills is shooting on the opponents’ net using one of three techniques: overhand, sidearm or underhand. The purpose of this study was to (i) determine which technique generated the highest ball velocity and greatest shot accuracy and (ii) identify kinematic and kinetic variables that contribute to a high velocity and high accuracy shot. Twelve elite male lacrosse players participated in this study. Kinematic data were sampled at 250 Hz, while two-dimensional force plates collected ground reaction force data (1000 Hz). Statistical analysis showed significantly greater ball velocity for the sidearm technique than overhand (P < 0.001) and underhand (P < 0.001) techniques. No statistical difference was found for shot accuracy (P > 0.05). Kinematic and kinetic variables were not significantly correlated to shot accuracy or velocity across all shot types; however, when analysed independently, the lead foot horizontal impulse showed a negative correlation with underhand ball velocity (P = 0.042). This study identifies the technique with the highest ball velocity, defines kinematic and kinetic predictors related to ball velocity and provides information to coaches and athletes concerned with improving lacrosse shot performance. 相似文献
24.
Darren Veness Stephen David Patterson Owen Jeffries 《Journal of sports sciences》2017,35(24):2461-2467
This study investigated the effects of a mentally fatiguing test on physical tasks among elite cricketers. In a cross-over design, 10 elite male cricket players from a professional club performed a cricket run-two test, a Batak Lite reaction time test and a Yo-Yo-Intermittent Recovery Level 1 (Yo-Yo-IR1) test, providing a rating of perceived exertion (RPE) after completing a 30-min Stroop test (mental fatigue condition) or 30-min control condition. Perceived fatigue was assessed before and after the two conditions and motivation was measured before testing. There were post-treatment differences in the perception of mental fatigue (P < 0.001; d = ?7.82, 95% CIs = ?9.05–6.66; most likely). Cricket run-two (P = 0.002; d = ?0.51, 95% CIs = ?0.72–0.30; very likely), Yo-Yo-IR1 distance (P = 0.023; d = 0.39, 95% CIs = 0.14–0.64; likely) and RPE (P = 0.001; d = ?1.82, 95% CIs = ?2.49–1.14; most likely) were negatively affected by mental fatigue. The Batak Lite test was not affected (P = 0.137), yet a moderate (d = 0.41, 95% CIs = ?0.05–0.87) change was likely. Mental fatigue, induced by an app-based Stroop test, negatively affected cricket-relevant performance. 相似文献
25.
26.
Cher P. Lim Darren Nonis John Hedberg 《British journal of educational technology : journal of the Council for Educational Technology》2006,37(2):211-231
Based on the exploratory study of a 3D multiuser virtual environment (3D MUVE), known as Quest Atlantis (QA), in a series of Primary Four (10‐ to 11‐year‐olds) Science lessons at Orchard Primary School in Singapore, this paper examines the issues of learning engagement and describes the socio‐cultural context of QA's implementation. The students and teacher were observed during the lessons, interviewed after, and the completed quests were analysed to determine the level of engagement achieved. A pre‐ and posttest on the Science concepts covered was also administered. A seven‐level taxonomy of engagement was used to provide the study with a more holistic perspective of engagement, together with the attempt to concretise the element of engagement into observable traits. Although there was a significant improvement of the posttest over the pretest, the level of engagement of the students was low (between 3 and 4). The lack of engagement might be a result of the distractions in the 3D MUVE, the students’ difficulty with language used in the QA, their lack of computer competency for QA tasks, and/or their inability to complete the quests’ section on reflections. The biggest challenges to the integration of QA into the Science curriculum were the interdependent issues of time (or lack of it) and ‘buy‐in’ by the school and parents. 相似文献
27.
The onset of exercise facilitates an improvement in psychomotor performance until the second ventilatory threshold, after which performance is reduced. This inverted-U relationship appears valid for incremental and steady-state exercise, however, not for intermittent exercise. This study examined changes in psychomotor performance of team sport officials during a laboratory-based match simulation. Twelve elite Australian football (n = 5) and rugby league (n = 7) officials (32.5 ± 5.5 years; 180.0 ± 6.8 cm; 78.8 ± 7.6 kg) completed the match simulation on a non-motorised treadmill. Physiological measures were routinely taken, while psychomotor performance was assessed using the Eriksen flanker task (multiple-choice response time). Significant reductions (P < 0.05) were observed in distance covered and high-speed running during the second half when compared to the first. No significant differences (P > 0.05) in psychomotor performance at different time points were observed. Response time was significantly improved when running above 65% of maximal sprinting speed (P < 0.01). This data questions the application of the inverted-U hypothesis for intermittent exercise and suggests that the short high-intensity efforts may not result in the same physiological events that limit psychomotor performance during sustained high-intensity exercise. More so, the high-intensity efforts during the match protocol appeared to promote psychomotor performance during the intermittent exercise. 相似文献
28.
29.
This article aims to explain the role principals play in the variation in academic achievement between secondary schools in Hong Kong. The article draws on survey data from 179 key staff and 2,037 students from 42 schools. The study uses 2 analytical approaches. First, it employs classification and regression tree analysis (CART). This was used to sort out the most significant leadership practices associated with student achievement. Second, based on first-stage analysis, the study further explores the effects of leadership practices on academic achievement using hierarchical linear modelling (HLM). Results indicate that transparent and efficient communication structures as managed by principals explained approximately 12% of between-schools variation in academic achievement. Leadership practices related to quality assurance and accountability and resource management also contributed to explaining between-schools variation in academic achievement, yet they had negative effects on student achievement. Implications for research and practice are discussed. 相似文献
30.
The literature suggests that peer assessment contributes to the development of student learning and promotes ownership of
assessment processes. These claims emerge from research conducted primarily in Western contexts. This exploratory paper reports
on the perspectives that a class of Hong Kong primary school students and their teachers have on their engagement with peer
assessment. It draws on data collected through extensive interviews and classroom observations from a 2-year case study. The
findings indicate that student perceptions about the usefulness of peer assessment follow from their perspectives on quality
of peer feedback, peer language proficiency, and the novelty or repetitiveness of its processes. Teachers and students also
viewed peer assessment as assuming a wider role in preparing for examinations and future secondary schooling. A key implication
is that assessment practices are deeply cultural and, in test-dominated settings, peer assessment may have most potential
when explicit links are drawn with preparation for summative assessment. 相似文献