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11.
This article compares East Germany's Cold War-era approach to doping to that of the USA's in terms of their respective impacts on medical risk. Although deserving of criticism on many levels, the GDR doping programme featured a number of safeguards designed to minimise medical dangers. Unlike their East German counterparts, American governmental units were not directly involved in the administration of performance-enhancing substances. The US approach to doping was not ideal in terms of medical risk, however. As a result of the country's regulatory approach to doping, the country's athletes frequently turned to black market sources for doping agents. It was also relatively common for American athletes to use performance-enhancing drugs without the benefit of medical supervision. The US approach to doping was in these ways inferior to that of East Germany's on the subject of medical risk. 相似文献
12.
Allana Slater Anne Smith Leon Straker 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(1):45-56
High impact forces during gymnastic landings are thought to contribute to the high rate of injuries. Lower limb joint flexion is currently limited within gymnastic rules, yet might be an avenue for reduced force absorption. This study investigated whether lower limb flexion during three gymnastic landings was related to force. Differences between landings were also explored. Twenty-one elite women's artistic gymnasts performed three common gymnastic techniques: drop landing (DL), front and back somersaults. Ankle, knee, and hip angles, and vertical ground reaction force [(vGRF) magnitude and time to peak], were measured using three-dimensional motion analysis and force platform. The DL had significantly smaller peak vGRF, greater time to peak vGRF and larger lower limb flexion ranges than landing from either somersault. Peak vGRF and time to peak vGRF were inversely related. Peak vGRF was significantly reduced in gymnasts who landed with greater hip flexion, and time to peak was significantly increased with increasing ankle, knee, and hip flexion. Increased range of lower limb flexion should be encouraged during gymnastic landings to increase time to peak vGRF and reduce high impact force. For this purpose, judging criteria limitations on lower limb flexion should be reconsidered. 相似文献
13.
Arlene M. Morris Jean M. Williams Anne E. Atwater Jack H. Wilmore 《Research quarterly for exercise and sport》2013,84(3):214-221
Abstract This study examined the relationship of age and sex to the performance of 3, 4, 5, and 6 year olds on seven motor performance test items. Although significant age and sex differences were found on most of the motor tests, it appears that age generally was related more to performance than was gender. Overall, change with age was fairly linear except perhaps for balancing and a general tapering in improvement in the 5 to 6 year old category. On the tests of throwing and balancing, gender was as important as age, or more so, in its relationship to performance. Boys were superior to girls at all ages on the throwing tests; girls were superior to boys at age 6 on the Balance test. Gender differences of a lesser magnitude were found on the Speed Run and Standing Long Jump tests with the performance of boys generally being superior to the performance of girls. Thus, it appears that gender differences in motor performance occur as early as the preschool years. Interestingly, except for the Balance test, on all the tests the 3 and 4 year old boys performed similarly and the 5 and 6 year old boys performed similarly. For the girls there were more significant differences from year to year in performance, with the data generally indicating at least three distinct skill groups for girls from age 3 to 6. 相似文献
14.
Anne Flintoff 《Sport, Education and Society》2013,18(4):393-411
The School Sport Partnership Programme (SSPP) is one strand of the national strategy for physical education and school sport in England, the physical education and school sport Club Links Strategy (PESSCL). The SSPP aims to make links between school physical education (PE) and out of school sports participation, and has a particular remit to raise the participation levels of several identified under-represented groups, of which girls and young women are one. National evaluations of the SSPP show that it is beginning to have positive impacts on young people's activity levels by increasing the range and provision of extra curricular activities (Office for Standards in Education (OFSTED), 2003, 2004, 2005; Loughborough Partnership, 2005, 2006). This paper contributes to the developing picture of the phased implementation of the programme by providing qualitative insights into the work of one school sport partnership with a particular focus on gender equity. The paper explores the ways in which gender equity issues have been explicitly addressed within the ‘official texts’ of the SSPP; how these have shifted over time and how teachers are responding to and making sense of these in their daily practice. Using participation observation, interview and questionnaire data, the paper explores how the coordinators are addressing the challenge of increasing the participation of girls and young women. The paper draws on Walby's (2000) conceptualisation of different kinds of feminist praxis to highlight the limitations of the coordinators’ work. Two key themes from the data and their implications are addressed: the dominance of competitive sport practices and the PE professionals’ views of targeting as a strategy for increasing the participation of under-represented groups. The paper concludes that coordinators work within an equality or difference discourse with little evidence of the transformative praxis needed for the programme to be truly inclusive. 相似文献
15.
This commentary introduces David Kirk's paper entitled ‘Making a career in Physical Education and Sport Pedagogy in the corporatized university: Reflections on hegemony, resistance, collegiality and scholarship’, which was presented in the 2012 Physical Education and Sport Pedagogy (PESP) ‘scholar lecture’ at the British Educational Research Association (BERA) conference. We briefly describe the origins of the scholar lecture and its link to the PESP special interest group of BERA and then make a few introductory comments about the lecture, highlighting a number of points of tension that the paper raises for us. 相似文献
16.
Anna B. Thaxton Anne L. Rothstein Nolan A. Thaxton 《Research quarterly for exercise and sport》2013,84(2):420-427
Abstract This study was designed to determine whether there was a difference in the effectiveness of the traditional method and the movement exploration method of teaching physical education activities to elementary school girls. Four classes of fourth-grade girls (N = 67) were randomly assigned to the experimental conditions. A 2 × 2 × 3 factorial ANOVA with repeated measures on the last factor was used to analyze the data. The first factor consisted of the traditional and movement exploration teaching methods. The second was a combination of instructional time and retention time. The third was test period and had three levels: pretest, posttest, and retention test. Skills taught were gymnastics and tumbling, and basketball. It was concluded that a combination of methods should be used in teaching elementary school physical education activities, depending upon the activities to be taught. A four-week unit (two 50-min periods per week) is suggested as the appropriate length for nine and ten year olds. 相似文献
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Research illustrates the positive roles of perceived competence, autonomy, and mastery climate and the negative role of performance climate in student motivation in physical education. Less research has examined perceptions of relationships within this setting (i.e., perceived teacher support and relatedness) and their role in student motivation. The purpose of this study was to test the mediating roles of perceived competence, autonomy, and relatedness in the relationship between social contextual factors and motivation in physical education students (N = 508). Results from structural equation modeling showed that perceived competence, autonomy, and relatedness partially mediated the relationship between perceived teacher support and self-determined motivation and that mastery climate related directly to self-determined motivation. The results highlight the importance of perceived teacher support, mastery climate, and relatedness to motivation in physical education. 相似文献
20.
Margaret Barnes Anne Roiko Rachel Reed Cath Williams Kerry Willcocks 《The Journal of perinatal education》2012,21(1):18-23
Assisted conception is becoming an increasingly more common treatment option for women and couples who experience fertility problems. Links have been made in the literature between assisted conception and a greater incidence of pregnancy or birth complications, low birth weight or premature babies, and babies with congenital abnormalities. In addition, evidence suggests that the experience of assisted conception may influence the development of early mothering relationships and impact parenting adjustment. Although this commentary article does not strategically review all available literature, it provides an overview of the health issues that women and families undergoing assisted conception have experienced or may experience. Through raising awareness and promoting discussion of these issues, practitioners will be better equipped to provide informed education and support. 相似文献