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21.
Roman Farana Timothy Exell Gerda Strutzenberger Gareth Irwin 《European Journal of Sport Science》2018,18(3):423-430
Biophysical loading of the elbow and wrist is a potential reason for chronic lesions in gymnastics and present a real concern for coaches, scientist and clinicians. Previous research has identified injury risk factors during round-off (RO) skills in elite female gymnasts. The aim of this study was to investigate key elbow and wrist joint injury risk factors during different techniques of fundamental cartwheel (CW) and RO skills performed by young female artistic gymnasts. Seventeen active young female gymnasts performed 30 successful trials of both CW and RO from a hurdle step with three different hand positions (parallel (10), T-shape (10) and reverse (10)). Synchronised kinematic (240?Hz) and kinetic (1200?Hz) data were collected for each trial. One-way repeated measures ANOVA and effect size (ES) were used for statistical analysis. The results showed statistically significant differences (P?0.8) among hand positions for peak vertical ground reaction force (VGRF), peak elbow compression force, peak wrist compression force, elbow internal adduction moment and wrist dorsiflexion angle. In conclusion, the parallel and reverse techniques increase peak VGRF, elbow and wrist compression forces, and elbow internal adduction moment. These differences indicate that the parallel and reverse techniques may increase the potential of elbow and wrist injuries in young gymnasts compared with the T-shape technique; this is of particular importance with the high frequency of the performance of these fundamental skills. 相似文献
22.
This article is presented as an interim report on an inquiry which is being conducted at the German Institute for International Educational Research at Frankfurt/Main. The authors being by outlining the organisational structure of special school teacher training at the Faculties of Defectology which have been established at a good number of Colleges of Education. However, the emphasis is laid on identifying current curricular innovations with special regard to the experiments at the Lenin College of Education in Moscow. In the following section specific attention is paid to the function of correspondence studies in the initial and in‐service training of special school teachers. The article is concluded by some remarks about the social status that teachers enjoy in the Soviet Union and by some basic comparison with trends in special teacher education in both Germanies. 相似文献
23.
Gerda Strutzenberger Joseph Moore Hywel Griffiths Hermann Schwameder Gareth Irwin 《European Journal of Sport Science》2016,16(2):165-171
Kinesio-tape® has been suggested to increase blood circulation and lymph flow and might influence the muscle's ability to maintain strength during fatigue. Therefore, the aim of this study was to investigate the influence of gluteal Kinesio-tape® on lower limb muscle strength in non-fatigued and fatigued conditions. A total of 10 male rugby union players performed 20-m sprint and vertical jump tests before and after a rugby-specific fatigue protocol. The 20-m sprint time was collected using light gates (SMARTSPEED). A 9-camera motion analysis system (VICON, 100 Hz) and a force plate (Kistler, 1000 Hz) measured the kinematics and kinetics during a counter movement jump and drop-jump. The effect of tape and fatigue on jump height, maximal vertical ground reaction force, reactivity strength index as well as lower limb joint work were analysed via a two-way analysis of variance. The fatigue protocol resulted in significantly decreased performance of sprint time, jump heights and alterations in joint work. No statistical differences were found between the taped and un-taped conditions in non-fatigued and fatigued situation as well as in the interaction with fatigue. Therefore, taping the gluteal muscle does not influence the leg explosive strength after fatiguing in healthy rugby players. 相似文献
24.
The teaching of Probability Theory constitutes a new trend in mathematics education internationally. The purpose of this research project was to explore the degree to which preschoolers understand key concepts of probabilistic thinking, such as sample space, the probability of an event and probability comparisons. At the same time, we evaluated an educational programme which aimed to introduce children to the basic principles of Probability Theory. The research sample consisted of 29 preschoolers (with an average age of 5 years and 4 months) from two classes of a Greek public kindergarten. The research was based on a semi-experimental, three-phase plan: the pretest, the teaching intervention and the post-test. The pretest explored the children’s conception of key probabilistic constructs and contributed to the planning of the teaching intervention. Through the post-test, we evaluated the contribution of the teaching intervention. The findings showed that pupils displayed a satisfactory level of comprehension of key probabilistic concepts and that, moreover, teaching this subject can improve their comprehension. 相似文献
25.
Gerda J. Visser-Wijnveen Ann Stes Peter Van Petegem 《Teaching in Higher Education》2013,18(6):644-656
The motivation to teach is a powerful, yet neglected, force in teaching at institutes of higher education. A better understanding of academics' motivations for teaching is necessary. The aim of this mixed-method study was to identify groups with distinctively different motivations for teaching. Six clusters were identified: expertise, duty, subject, passion, reluctance and incompetence. The teachers in these groups differed in perceived personal effectiveness, interest and effort towards teaching. Interview data revealed the competitive function of research and the importance of the subject matter taught. The clusters containing teachers who prioritise the teaching process over the teaching content were the ones with the highest overall motivation scores. 相似文献
26.
Martin Pühringer Gerda Strutzenberger Daniela Leitl Konrad Holzner Hermann Schwameder 《European Journal of Sport Science》2017,17(9):1212-1219
The aim of the study was to quantify the activation of arm and shoulder muscles during a static therapeutic climbing exercise and to investigate the possibility of altering the muscle activation through arm position (Jug, Undercling, Sidepull internal rotated, Sidepull external rotated), hand support (one-handed, double-handed) and wall inclination (0°, 12°). Electromyographic (EMG) activity of 14 healthy, climbing unexperienced males for the right m. biceps brachii (BB), m. serratus anterior (SA), m. upper, middle and lower trapezius (UT, MT, LT) showed mainly low to moderate EMG activation levels (BB: 4.1–40.1% maximum voluntary isometric contraction (MVIC), SA: 4.5–24.5% MVIC, UT: 1.3–28.0% MVIC, MT: 8.6–47.1% MVIC, LT: 3.8–47.3% MVIC). Significant differences occurred between the four arm positions for the UT and LT. The one-handed support revealed significant higher muscle activation than the double-handed support in every condition except for SA in Undercling arm position at 12° wall inclination. Increasing the wall inclination (from 0° to 12° overhang) led to a significant increase in muscle activation in nearly every exercise variation and muscle. These findings suggest that arm position, hand support and wall inclination are appropriate possibilities of altering muscle activation patterns in therapeutic climbing. 相似文献
27.
This article addresses the issue of teacher educators’ emotion display when teaching and interacting with students. Little is known about this phenomenon in higher education generally, and teacher education specifically. An empirical study was conducted to address this gap by investigating teacher educators’ views on appropriate and inappropriate emotion display and its functions in the process of teaching. The study also examined how teachers used emotion regulation strategies to manage the intensity of their experienced emotions. The participants (six male, nine female) were from two public Australian universities and were all teaching first-year students in pre-service education. Data were collected through in-depth, semi-structured face-to-face interviews. Qualitative analyses revealed that these teachers viewed the open expression of positive emotions as an integral aspect of their teaching practice. In terms of negative emotions, they reported the criticality of controlling such experiences, and the occasional need to completely conceal them. Some reflected on the instrumental functions and conscious use of emotion display and emotion suppression. Findings are discussed in light of prior research; limitations of this exploratory study are addressed, and directions for future research are outlined. 相似文献
28.
This article reviews the extant research on the relationship between students and teachers in higher education across three main areas: the quality of this relationship, its consequences and its antecedents. The weaknesses and gaps in prior research are highlighted and the importance of addressing the multi-dimensional and context-bound nature of teacher–student relationships is proposed. A possible agenda for future research is outlined. 相似文献
29.
Some 985 secondary school students completed a questionnaire as part of an investigation into the experiences of Asian girls in a secondary school arising out of a larger project concerned with motivational factors in educational attainment. Results indicated that (1) Asian girls enjoyed all aspects of school life as much or more than their non-Asian counterparts; (2) across both ethnic groups girls enjoyed all aspects of school except sports and clubs more than boys; (3) enjoyment of subjects followed sex stereotypical lines, irrespective of ethnicity: girls rated English, French, German, drama, music and home economics as significantly more enjoyable, and boys rated science, craft, design and technology, physical education, information technology and mathematics as more enjoyable; (4) irrespective of gender, Asian students reported more enjoyment of religious education, and lower enjoyment of drama, physical education and home economics; (5) irrespective of ethnic group, girls reported that there was not enough choice of subjects; and (6) Asian students of both sexes rated parents and friends as more important in contributing to academic success. These results are critiqued in a context that questions the desirability of conducting investigations such as this which dichotomise students into groups on the grounds of ethnicity. 相似文献
30.