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1.
Matthieu Cisel 《The American journal of distance education》2019,33(3):212-227
We analyzed the structure of the MOOC ecosystem from the perspective of two aggregators, Class Central and MOOC List, which gather information on thousands of courses. Their datasets, which range from 2012 to 2015, enabled us to underline the contrast between most important platforms such as Coursera or edX, and smaller scale platforms, notably their European counterparts. Both the number of courses produced by institution and the estimated workload for each course are higher in North America, suggesting that the strategies of institutions of higher education differed between both continents. Finally, we show that course duration decreased over the years, and suggest that it represented a strategy to tackle low completion rates. 相似文献
2.
Nikki Rommers Mireille Mostaert Lennert Goossens Roel Vaeyens Erik Witvrouw Matthieu Lenoir 《Journal of sports sciences》2019,37(2):196-203
This study investigated differences in generic and soccer specific motor coordination, as well as speed and agility depending on age and maturity in elite youth soccer players (U10-U15, N = 619). Measurements included body height, body weight and sitting height to estimate age at peak height velocity (APHV); three Körperkoordinationstest für Kinder subtests (i.e. jumping sideways (JS), moving sideways (MS), balancing backwards (BB)) to assess generic motor coordination; the UGent dribbling test for soccer specific motor coordination; a 5m/30m sprint and T-test for speed and agility, respectively. Age specific z-scores of the predicted APHV identified players as earlier, on time or later maturing. (M)ANOVA analyses showed significant age by maturity interaction effects for the speed and agility test cluster, revealing maturity related differences in U14 and U15 players. Next to an overall higher performance with age for all test clusters (η2 0.080–0.468), earlier maturing players outperformed their later maturing peers in 5m/30m sprinting. The opposite was seen for JS and BB. So, players’ maturity status should be taken into account to adequately value performance in talent identification. Also, the focus on characteristics that appear to be minimally biased by an earlier maturational timing (i.e. motor coordination) should be increased. 相似文献
3.
The value of a non-sport-specific motor test battery in predicting performance in young female gymnasts 总被引：3，自引：2，他引：1
Vandorpe B Vandendriessche JB Vaeyens R Pion J Lefevre J Philippaerts RM Lenoir M 《Journal of sports sciences》2012,30(5):497-505
Gymnastics talent identification focuses on the identification of young gymnasts who display characteristics for potential success in the future. The aim of this study was to identify which current performance characteristics are related to performance in competition 2 years later. Twenty-three female gymnasts aged 7-8 years completed a multidimensional test battery measuring anthropometric, physical, and coordinative characteristics and were technically evaluated by expert coaches. Two years later, the all-around competition results of those gymnasts now participating in elite (n = 12) and sub-elite (n = 11) competition were obtained. None of the initial measurements significantly correlated with the results of the sub-elite gymnasts 2 years later. For the elite gymnasts, a non-sport-specific motor test battery correlated strongly with the competition result, with more than 40% of the variation in competition performance being explained by the result on that test 2 years earlier. Neither the coaches' judgement nor the anthropometric and physical characteristics were sensitive enough to predict performance. A motor coordination test might be valuable in the early identification of gymnasts, as its discriminative and predictive qualities might be sufficiently powerful for selection within a relatively homogeneous population of gymnasts exhibiting similar anthropometric and physical profiles. 相似文献
4.
Cottyn J De Clercq D Crombez G Lenoir M 《Research quarterly for exercise and sport》2012,83(2):300-307
The interaction between functional and dysfunctional emotions, as one of the major tenets of the individual zones of optimal functioning (IZOF) model (Hanin, 2000), was studied in a sport specific setting. Fourteen female gymnasts performed three attempts of a compulsory balance beam routine at three different heights. Heart rate and self-report of functional and dysfunctional emotions were measured during each routine. These data revealed the effectiveness of inducting emotions by manipulating height. Also, performance decreased on the most challenging condition, (i.e., the first attempt on the highest height). Moderated hierarchical regression analysis revealed a significant interaction between functional and dysfunctional emotions only when the dysfunctional emotion level was low. 相似文献
5.
Preparatory heart rate deceleration occurs in tasks with an external focus of attention and is often assumed to facilitate balance performance. However, its effects upon sport-related complex balance movements have not been studied. Heart rate patterns during the preparation period of an acrobatic element (flic-flac) on the balance beam were studied in 14 female gymnasts (M age 13.2 years). A significant heart rate deceleration was found in attempts with a fall in the consecutive acrobatic element, but not in attempts without a fall. These data suggest that preparatory heart rate deceleration may be detrimental to the performance of complex movements on the balance beam. 相似文献
6.
Dieter Deprez Aaron James Coutts Matthieu Lenoir Job Fransen Johan Pion Renaat Philippaerts 《Journal of sports sciences》2013,31(10):903-910
AbstractThe present study investigated the test-retest reliability from the Yo-Yo IR1 (distance and heart rate responses), and the ability of the Yo-Yo IR1 to differentiate between elite and non-elite youth soccer players. A total of 228 youth soccer players (11–17 years) participated: 78 non-elite players to examine the test-retest reliability within 1 week, added with 150 elite players to investigate the construct validity. The main finding was that the distance covered was adequately reproducible in the youngest age groups (U13 and U15) and highly reproducible in the oldest age group (U17). Also, the physiological responses were highly reproducible in all age groups. Moreover, the Yo-Yo IR1 test had a high-discriminative ability to distinguish between elite and non-elite young soccer players. Furthermore, age-related standards for the Yo-Yo IR1 established for elite and non-elite groups in this study may be used for comparison of other young soccer players. 相似文献
7.
Jorge Cottyn Dirk De Clercq Geert Crombez Matthieu Lenoir 《Research quarterly for exercise and sport》2013,84(2):300-307
The interaction between functional and dysfunctional emotions, as one of the major tenets of the Individual Zones of Optimal Functioning (IZOF) model (Hanin, 2000), was studied in a sport specific setting. Fourteen female gymnasts performed three attempts of a compulsory balance beam routine at three different heights. Heart rate and self-report of functional and dysfunctional emotions were measured during each routine. These data revealed the effectiveness of inducting emotions by manipulating height. Also, performance decreased on the most challenging condition, (i.e., the first attempt on the highest height). Moderated hierarchical regression analysis revealed a significant interaction between functional and dysfunctional emotions only when the dysfunctional emotion level was low. 相似文献
8.
Monica M. Matthieu Lorien Carter Robert W. Casner Tonya E. Edmond 《Journal of Teaching in Social Work》2013,33(5):477-489
ABSTRACTThis study evaluated a continuing education training program designed to increase field educators’ capacities to support students in their application of the evidence-based practice (EBP) process. A cohort of social work field instructors and task supervisors from agency-based settings (N = 186) attended a 1-day interactive skill-based training. Pre- and postsurveys assessed learning outcomes. Findings reveal a significant improvement from pre- to posttraining in the social work educators’ familiarity, t(179) = 22.8; attitude, t(180) = 12.73; and intentions, t(178) = 11.89, regarding EBP. Results indicate that skill-based training in the EBP process model via continuing education is feasible and acceptable. 相似文献
9.
The authors analyze the role and function of didactics in preservice teacher education as presented in official texts from the ministries of education of Québec and France. They identify the conceptions these texts convey about the ties between didactics and professional education and demonstrate the vulnerable and limited position of didactics in teacher education. In concluding, adopting a comparative approach, they highlight several convergent features of the two systems of teacher education as well as marked differences relating to training in didactics. 相似文献
10.
The effects of task constraints on visual search behavior and decision-making skill in youth soccer players 总被引：1，自引：0，他引：1
We examined differences in visual search behaviors and decision-making skill across different microstates of offensive play in soccer using youth participants (13.0-15.8 years) varying in skill and experience. We used realistic film simulations of offensive play, movement-based response measures, and an eye movement registration technique. Playing experience, skill level, and the unique constraints of the task, expressed by the number of players and relative proportion of offensive and defensive players, determined both the observed search behavior and processing requirements imposed on players in dynamic offensive team simulations. Significant differences in performance were observed between players and nonplayers and across three groups of soccer players who differed in skill level. Implications for talent identification and development are considered. 相似文献