Relationship between school rhythm and physical activity in adolescents: the HELENA study     

Jérémy Vanhelst  Laurent Béghin  Alain Duhamel  Stefaan De Henauw  Denes Molnar  Germán Vicente-Rodriguez 《Journal of sports sciences》2017,35(16):1666-1673

The aim was to assess the relationship between school rhythm and physical activity (PA) in adolescents. The study included 2024 adolescents (12.5–17.4 years). Participants wore an accelerometer for 7 days. A short school rhythm was defined as a short time at school with short recesses and less time in teaching per day (Group 1). A long school rhythm was defined as a longer time at school with more time in teaching and recess (Group 2). Adolescents in Group 1 performed less moderate to vigorous PA (MVPA) than those in Group 2 per week (P < .0001), especially during school days (recess: 3.9 ± 4.0 vs. 9.8 ± 7.9 min · day^?1; P < .0001; teaching hours: 14.5 ± 9.8 vs. 19.1 ± 12.0 min · day^?1; P < .0001). Adolescents in Group 1 were less likely to meet the PA recommendations than were adolescents in Group 2: 30.7% vs. 34.1% (P < .0001). During school days, the percentage of adolescents who spent more than 2 h · day^?1 in sedentary activities was greater in the Group 1 (P < .001). Our results suggest that leisure-time out-of-school hours is used mainly for sedentary activities, and that school time provides a good opportunity for promoting PA.  相似文献   

Studies of team teaching in the open-space school     

Frank A. Brunetti  Elizabeth G. Cohen  John W. Meyer  Sheila R. F. Molnar 《Interchange》1972,3(2-3):85-101

Three studies conducted by the Environment for Teaching Program of the Stanford Center for Research and Development in Teaching, concerning the effects on teachers and learners of factors in the organization of schools, are reported. Teacher influence, autonomy, interaction, and job satisfaction were perceived differently by teachers in open-space team-teaching schools, compared with teachers in self-contained-classroom schools. Observed patterns of decision-making interaction in teaching teams were related to teachers' perceptions of their own influence and autonomy. Observed activity levels of children in open-space team-teaching schools were greater than in schools with self-contained classrooms.

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Résumé Cet article présente un rapport sur trois études consacrées par Environment for Teaching Program du Centre de recherche et de développement de l'enseignement de Stanford, aux effets que produisent sur les professeurs et les élèves les facteurs de l'organisation scolaire. En comparaison des professeurs exerçant dans les salles de classe autonomes, les professeurs exerçant par équipe dans les écoles de grand air manifestent une conception différente sur l'influence, l'autonomie, l'interaction et le plaisir d'exercer le métier d'enseignant. Les auteurs ont rapproché les tendances observées dans l'interaction exercée par les professeurs groupés en équipe dans la formulation des décisions aux conceptions qu'entretiennent ces mêmes professeurs sur leur influence et leur autonomie propres. Ils ont également observé que les niveaux de l'activité exercée par les enfants fréquentant les écoles de grand air et éduqués par des professeurs travaillant en équipe étaient supérieurs aux niveaux de l'activité exercée par les enfants fréquentant les salles de classe autonomes.

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This research is supported by funds from the U.S. Office of Education, Dept. of Health, Education, and Welfare (Contract No. OEC-6-10-078, Project No. 5-0252-0307). The opinions expressed in this paper do not necessarily reflect the position, policy, or endorsement of the Office of Education. The authors, listed in alphabetical order, are equal coauthors.  相似文献   

Dynamic changes in perfectionism dimensions and psychological distress among adolescents assessed before and during the COVID-19 pandemic     

Danielle S. Molnar  Sabrina Thai  Melissa Blackburn  Dawn Zinga  Gordon L. Flett  Paul L. Hewitt 《Child development》2023,94(1):254-271

This prospective longitudinal study evaluated changes in psychological distress among adolescents, pre-pandemic to intra-pandemic, the extent to which within-person and between-person differences in trait multidimensional perfectionism were associated with such changes, and the role of stress in explaining associations between perfectionism and psychological distress. Adolescents (N = 187; 80% female; 78% White, 7% Asian Canadian, 2% Indigenous Peoples in Canada, 2% Black or African Canadian, 2% Latin Canadian, or 9% Other; M_age = 17.96 years) completed online surveys assessing perfectionism (i.e., self-oriented perfectionism and socially prescribed perfectionism), depression, anxiety, and stress pre-pandemic (i.e., March 12, 2020 or earlier) and during Ontario, Canada's first (i.e., March 13, 2020 to July 24, 2020) and second (December 26, 2020 to February 7, 2021) government-mandated lockdowns. Between-person differences and within-person changes in multidimensional trait perfectionism were associated with increases in psychological distress and perceived stress. Perceived stress served as an intermediary pathway linking multidimensional trait perfectionism to psychological distress during the pandemic.  相似文献   

对体育教育专业室内理论课教学实习的研究   总被引：2，自引：0，他引：2  

薄雪松  魏春立  李金花  王军 《河北体育学院学报》1999,(4)

通过对当前体育教师教授理论课能力不足现状的原因分析 ,得出了充分利用教育实习的机会 ,重视理论课教学实践 ,对实习生将来胜任中学理论课教学具有重要意义的结论。同时 ,对如何上好室内理论课提出了个人见解 ,以供今后教育实习工作参考。  相似文献