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101.
102.
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   
103.
The move of much anatomy teaching online in response to the Covid-19 pandemic has been successfully implemented within very short time frames. This has necessitated a high degree of dependence upon the use of digitized cadaveric resources, has entailed immense workload demands on staff, and has disrupted students' studies. These educational exigencies have been accompanied by ethical uncertainties for a discipline centered on study of the dead human body. An ethical framework for anatomy is suggested based on the principles of equal concern and respect, minimization of harm, fairness, and reciprocity, in which all staff and students are to be treated with respect and as moral equals. A series of ethical obligations are proposed as a means of maintaining the ethos of anatomy, coping with the suspension of body donation, providing adequate resources, and responding to increased dependence upon external providers. Good academic practice raises more general obligations stemming from the welfare of students, the increased workload of staff, and checking on online assessment and invigilation. As anatomists respond to the educational and ethical lessons prompted by this pandemic, they should plan for future disruptions to normal work patterns by adopting a sustainable and equitable course of action.  相似文献   
104.
This study investigated the relationships between parental behaviours and players’ life skills development and enjoyment within youth soccer. In total, 317 players (Mage = 12.83, SD = 1.70, age range = 10–16 years) completed a survey assessing parental behaviours (praise and understanding, directive behaviour, and pressure), perceived life skills development (teamwork, goal setting, time management, emotional skills, interpersonal communication, social skills, leadership, and problem solving and decision making), and enjoyment of soccer. Multiple regression analyses found that praise and understanding was the key contributor to the outcome variables, making the largest unique contribution to teamwork, goal setting, leadership, and total life skills. Directive behaviour made the largest unique contribution to emotional skills, and problem solving and decision making; whereas pressure made the largest unique contribution to participants’ time management and social skills. In practice, the results suggest that parents should display praise and understanding behaviours, which were the main contributor to players’ development of life skills within soccer.  相似文献   
105.
106.
The developmental activities of rugby union players and their interaction with deprivation remain to be elucidated. Five-hundred and ninety elite junior rugby union players (14.8 ± 0.5 years) were split into deprivation quintiles. These players subsequently completed a participant history questionnaire to record their involvement in rugby and other sports. Players accumulated 1987 ± 1297 h in rugby between 6 and 15 years of age. During the mini rugby stage (6–10 years of age), players accumulated an average of 113 ± 105, 89 ± 69 and 43 ± 19 h per year in rugby play, practice and competition, respectively. Moreover, 461 players engaged in an average of two other sports during the mini rugby stage. During the junior rugby stage (11–15 years of age), players accumulated 179 ± 98, 115 ± 90 and 64 ± 26 h per year in rugby practice, play and competition, respectively, and 538 players took part in three other sports. Players who were more deprived accumulated less rugby hours and participated in fewer other sports, but age milestones were not different between deprivation quintiles. There were no differences within developmental activities in rugby between deprivation groups.  相似文献   
107.
ABSTRACT

An essential component of any physical preparation programme is the selection of training exercises to facilitate desired performance outcomes, with practitioners balancing the principles of sports training to inform exercise selection. This study aimed to advance biomechanical understanding of the principles of overload and specificity within exercise selection, utilising novel joint kinetic and intra-limb joint coordination analyses. Three-dimensional kinematic and kinetic data were obtained from six male sprinters (100 m PB, 10.64–11.00) performing block starts (competitive motor task) and seven training exercises that encompassed traditionally viewed general and more specific exercises. Results highlighted the challenging nature of exercise selection, with all exercises demonstrating capacity to overload relevant joint kinetic features of the block start. In addition, all exercises were able to promote the emergence of proximal and in-phase extension joint coordination patterns linked with block start execution, although traditionally viewed non-specific exercises elicited greater overall coordination similarity. The current research helps advance biomechanical understanding of overload and specificity within exercise selection, by demonstrating how exercise selection should not solely be based on perceived replication of a competitive motor task. Instead, practitioners must consider how the musculoskeletal determinants of performance are overloaded, in addition to promoting task specific coordination patterns.  相似文献   
108.
In responding to Covid-19 anatomists have succeeded in adapting their teaching to online delivery. However, long-term reliance on this mode of teaching raises the prospect that transferring the whole of the learning environment to an impersonal digital world will lead to loss of anatomy’s humanistic side. In looking to a future increasingly dependent upon digital input to teaching, a number of roadblocks are identified. These are: the peril of abandoning the ethos of anatomy; for the workload of staff and especially for female academic staff; by a lack of adequate resources; to the research nature of departments, including the quality of research; to the position of anatomy in the biomedical sciences; and from pressures to retreat from a dissection-based education. In tracing a future trajectory for anatomy, issues outlined are the inevitability of change, the need for anatomy to market itself to the world, and the opportunities presented for anatomy to view itself increasingly as a contributor to broad scholastic endeavors. Suggestions include exploring the possibilities presented by virtual anatomy museums, the use of online learning to reach those not normally in touch with anatomy teaching, and exploring the integrated courses with humanities disciplines. It is concluded that anatomy will flourish if there is a willingness to expand the traditional horizons and be prepared to integrate all that is best in the person-to-person and digital worlds.  相似文献   
109.
In China as elsewhere in the world, human bodies and body parts have long been used for a wide range of medical and non-medical purposes. In recent decades, China has played a considerable role in some of the public exhibitions of plastinated bodies and body parts, and the commercial trade in organ donations. These contemporary developments have raised numerous challenging ethical and governance questions. In spite of the growing role of China in these, there have been few studies devoted to Chinese ethical thinking that might govern its policies on the use of human bodies and body parts, and in particular on the issue of commercialization. The present study is an attempt to bridge this gap, and concludes that Confucian thinking stresses the primacy of righteousness over profits and utilities. This conclusion is reached directly by drawing on Confucian ethical responses to the peculiar practice of using human body parts, such as placenta and flesh, as drugs in traditional Chinese medicine in imperial China and what has been called “yili zhibian,” the major Confucian discourse on yi (righteousness or justice) and li (profit or interest) in its long history. The principle of prioritizing righteousness over profit leads to a general moral opposition to the commodification of human bodies and body parts. While Confucianism may not place an absolute prohibition on any such use, it does require that any commercial uses are made subject to the fundamental moral principles, such as righteousness, as well as adequate ethical governance procedures.  相似文献   
110.
This case study gives an analytical account of institutional development in induction provision.

Driven by student experience concerns, a London post-1992 University set up an ‘enhanced induction project’ to provide a more integrated, personalised approach through more coordinated processes. In a large, diverse context, university-wide working is problematic; issues about control and autonomy are illustrated by this action research. Significant change has been achieved in a developmental process shaped by and revealing the interplay of differing organisational cultures. Critical reflection on change management, from practice and strategy to policy and embedding, draws on a range of work on organisational cultures.  相似文献   
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