How performance analysis of elite long jumping can inform representative training design through identification of key constraints on competitive behaviours

Abstract

Analysing performance in competitive environments enables identification of key constraints which shape behaviours, supporting designs of more representative training and learning environments. In this study, competitive performance of 244 elite level jumpers (male and female) was analysed to identify the impact of candidate individual, environmental and task constraints on performance outcomes. Findings suggested that key constraints shaping behaviours in long jumping were related to: individuals (e.g. particularly intended performance goals of athletes and their impact on future jump performance); performance environments (e.g. strength and direction of wind) and tasks (e.g. requirement for front foot to be behind foul line at take-off board to avoid a foul jump). Results revealed the interconnectedness of competitive performance, highlighting that each jump should not be viewed as a behaviour in isolation, but rather as part of a complex system of connected performance events which contribute to achievement of competitive outcomes. These findings highlight the potential nature of the contribution of performance analysis in competitive performance contexts. They suggest how practitioners could design better training tasks, based on key ecological constraints of competition, to provide athletes with opportunities to explore and exploit functional intentions and movement solutions high in contextual specificity.     

Health-related fitness knowledge growth in middle school years: Individual- and school-level correlates

BackgroundHealth-related fitness knowledge (HRFK) has been an essential concept for many health and physical education programs. There has been limited understanding and longitudinal investigation on HRFK growth. This longitudinal study examined HRFK growth and its individual- and school-level correlates in middle school years under 1 curriculum condition: Five for Life.MethodsParticipants were 12,044 students from 47 middle schools. Data were collected at both individual/participant and school/institution levels. Individual-level variables included gender, grade, and HRFK test scores. School-level variables included percentage of students receiving free and reduced meals (FARM), student-to-faculty ratio for physical education, and school academic performance (SAP). We used hierarchical linear modeling to examine HRFK 3-year growth in relation to individual- and school-level correlates.ResultsThe average HRFK score at 6th grade for females was 42.81% ± 1.32%. The predicted HRFK growth was 17.06% ± 1.02% per year, holding other factors constant. A 1-standard deviation increase in FARM correlated with a 14.68%-point decrease in predicted test score (p = 0.02). A 1-standard deviation increase in SAP was associated with an 11.90%-point increase in HRFK score. Males had a significantly lower growth rate than females during the middle school years (0.78%/year, p = 0.02).ConclusionThe result showed that both individual- and school-level variables such as gender, FARM, and SAP influenced HRFK growth. Educators should heed gender differences in growth curves and recognize the correlates of school-level variables.     

The development of a reliable amateur boxing performance analysis template

Abstract

The aim of this study was to devise a valid performance analysis system for the assessment of the movement characteristics associated with competitive amateur boxing and assess its reliability using analysts of varying experience of the sport and performance analysis. Key performance indicators to characterise the demands of an amateur contest (offensive, defensive and feinting) were developed and notated using a computerised notational analysis system. Data were subjected to intra- and inter-observer reliability assessment using median sign tests and calculating the proportion of agreement within predetermined limits of error. For all performance indicators, intra-observer reliability revealed non-significant differences between observations (P > 0.05) and high agreement was established (80–100%) regardless of whether exact or the reference value of ±1 was applied. Inter-observer reliability was less impressive for both analysts (amateur boxer and experienced analyst), with the proportion of agreement ranging from 33–100%. Nonetheless, there was no systematic bias between observations for any indicator (P > 0.05), and the proportion of agreement within the reference range (±1) was 100%. A reliable performance analysis template has been developed for the assessment of amateur boxing performance and is available for use by researchers, coaches and athletes to classify and quantify the movement characteristics of amateur boxing.     

Representative learning design in springboard diving: Is dry-land training representative of a pool dive?

Abstract

Two distinctly separate training facilities (dry-land and aquatic) are routinely used in springboard diving and pose an interesting problem for learning, given the inherent differences in landing (head first vs. feet first) imposed by the different task constraints. Although divers may practise the same preparation phase, take-off and initial aerial rotation in both environments, there is no evidence to suggest that the tasks completed in the dry-land training environment are representative of those performed in the aquatic competition environment. The aim of this study was to compare the kinematics of the preparation phase of reverse dives routinely practised in each environment. Despite their high skill level, it was predicted that individual analyses of elite springboard divers would reveal differences in the joint coordination and board-work between take-offs. The two-dimensional kinematic characteristics were recorded during normal training sessions and used for intra-individual analysis. Kinematic characteristics of the preparatory take-off phase revealed differences in board-work (step lengths, jump height, board depression angles) for all participants at key events. However, the presence of scaled global topological characteristics suggested that all participants adopted similar joint coordination patterns in both environments. These findings suggest that the task constraints of wet and dry training environments are not similar, and highlight the need for coaches to consider representative learning designs in high performance diving programmes.     

The angiogenetic effect of intramuscular administration of b-FGF and a-FGF on cardiac muscle: The influence of exercise on muscle angiogenesis

Abstract

Although angiogenetic therapy using recombinant growth factors holds much hope for the treatment of ischaemic diseases, there are still many unanswered questions, including the method of administration, the correct dose of these factors, and the duration of the therapeutic approach. Exercise has also been suggested to induce neovascularizaiton in muscles. We evaluated the angiogenetic effects of the intramuscular administration of basic-fibroblast growth factor (b-FGF) and acidic-fibroblast growth factor (a-FGF) in rat heart, compared with rats who exercised daily. In conclusion, both the intramuscular administration of b-FGF and exercise increased significantly angiogenesis in the heart in contrast to the intramuscular administration of a-FGF, which was ineffective.     

Vitamin D and the athlete: Emerging insights

Abstract

Interest in Vitamin D has risen considerably recently with many athletes now advised to take daily vitamin D supplements. The reason for this interest is partly not only attributed to the resurgence of the Vitamin D-deficient disease rickets but also due to the discovery of a Vitamin D receptor in many tissues suggesting a more global role for Vitamin D than previously considered. Unlike the other vitamins that are obtained through the diet, Vitamin D is unique since endogenous synthesis following ultraviolet B (UVB) exposure is the predominant route of entry into systemic circulation. Moreover, Vitamin D could be better classed as a seco-steroid, given that its structure is similar to that of a steroid, and its production is derived from a cholesterol precursor (7-dehydrocholesteol) in the skin. The classification of Vitamin D status is currently subject to considerable debate with many authors opposing governing body recommendations. Regardless of the suggested optimal concentration, there is now growing evidence to suggest that many athletes are in fact Vitamin D deficient, especially in the winter months largely as a consequence of inadequate sun exposure, combined with poor dietary practices, although the consequences of such deficiencies are still unclear in athletic populations. Impaired muscle function and reduced regenerative capacity, impaired immune function, poor bone health and even impaired cardiovascular function have all been associated with low Vitamin D in athletes, however, to date, the majority of studies on Vitamin D have described associations and much more research is now needed examining causation.     

Quantifying instantaneous performance in alpine ski racing

Abstract

Alpine ski racing is a popular sport in many countries and a lot of research has gone into optimising athlete performance. Two factors influence athlete performance in a ski race: speed and the chosen path between the gates. However, to date there is no objective, quantitative method to determine instantaneous skiing performance that takes both of these factors into account. The purpose of this short communication was to define a variable quantifying instantaneous skiing performance and to study how this variable depended on the skiers' speed and on their chosen path. Instantaneous skiing performance was defined astime loss per elevation difference dt/dz, which depends on the skier's speed v(z), and the distance travelled per elevation difference ds/dz. Using kinematic data collected in an earlier study, it was evaluated how these variables can be used to assess the individual performance of six ski racers in two slalom turns. The performance analysis conducted in this study might be a useful tool not only for athletes and coaches preparing for competition, but also for sports scientists investigating skiing techniques or engineers developing and testing skiing equipment.     

A Longitudinal Study of the Transition from Doctoral Student to Faculty Member in Physical Education

ABSTRACT

Purpose: A paucity of literature examines how doctoral students are prepared for the transition into physical education teacher education faculty roles. Given the need to understand how doctoral programs impact such preparation, we sought to investigate this process using a longitudinal approach grounded in occupational socialization theory. Method: Fourteen participants (8 males, 6 female) were interviewed during final stages of doctoral programs and their first years in faculty positions; questions focused on key socializing agents and experiences that shaped their preparation for their academic careers. Data were analyzed using a constant comparison approach entailing open and axial coding. Results: Strong advisor-advisee relationships and finding a supportive department culture during one’s first faculty position were key socializing mechanisms. Participants who independently sought research experiences transitioned more smoothly into faculty roles; however, many had heavy teaching loads which conflicted with ambitions to regularly conduct research. Further, some faculty members experienced tense sociopolitical environments which hindered their productivity and confidence in current job roles. Conclusions: Our results speak to the challenges and successes that faculty members experience as they transition into the academy. Findings have implications for further research and practice to enhance the quality of doctoral education and faculty induction programs.     

Bouncing back from failure: The interactive impact of perceived controllability and stability on self-efficacy beliefs and future task performance

Abstract

There is limited empirical evidence of the relationship between attributions following failure and subsequent task performance. Two studies manipulated the perceived controllability and stability of causes of initial task failure and explored the impact of these factors on perceptions of self-efficacy and follow-up performance. Consistent with previous attributional and social identity theorizing, an induced belief that failure was both beyond control and unlikely to change led to lower self-efficacy and worse performance, relative to conditions in which outcomes were believed to be controllable and/or unstable. These findings point to the resilience of beliefs in personal self-efficacy, but suggest that where opportunities for self-enhancement are precluded, personal self-belief will be compromised and performance will suffer.     

An Organizational Life Cycle Approach to Exploring the Elite Sport Legacy of Summer Olympic Host Nations: The Cases of China (Beijing 2008) and Australia (Sydney 2000)

Abstract

This paper investigates the elite sport legacies of hosting the Summer Olympics for China (Beijing 2008) and Australia (Sydney 2000). The classic organizational life cycle approach provides the conceptual framework for this retroductive study. The data for both cases are sourced from official publications, academic research, and documents from various government departments and organizations. Additional data are drawn from three semi-structured interviews with key Chinese stakeholders. The analysis provides clear evidence that governments and their stakeholders use the opportunities afforded by a home Olympics to boost Olympic performance. China and Australia experienced a similar four-phase pattern of elite sport legacy life cycle: start-up, growth, maintenance, and decline. Both countries also shared many similar policy and management factors throughout each stage. An increased awareness of the sequential nature of elite sport legacy can help Olympic host countries make a more informed decision about their long-term strategies for elite sport success.     

Pygmalion in the Gym: A Model for the Communication of Teacher Expectations in Physical Education

Abstract

Much research on teacher expectations has focused on ways in which teacher perceptions of student ability can ultimately affect student performance. The majority of this research has indicated that teacher expectations not only determine certain types of student performance, but also serve to sustain low and high levels of performance. Observational research has also demonstrated that differential teacher-student interactions are related to certain levels of teacher expectations. For example, it has been shown that high expectancy students receive more praise, acceptance of ideas, contact and wait time, and more response opportunities than low expectancy students. Much of this research has been generated from studies related to classroom instruction. Very little of this research, however, has been operational in the physical education setting. One reason for this is the absence of a model in physical education through which this type of research can be generated. This article presents such a model showing how expectations are formed, how they are communicated, and how they sustain low and high levels of student growth and performance. The model further illustrates the causal relationship among teacher expectations, dyadic interactions and student growth and performance. Suggestions for future research techniques to determine causal flow among variables are also presented.     

Where are we now? A review of research on the history of women's soccer in Ireland

ABSTRACT

It is a common fact that women's sport and leisure history, especially in male dominated spheres, and more specifically football, have been ignored by many academics. However, in recent years there have been major developments in digital technology that have changed the nature of the type of research that can be done. Access to tools to facilitate field research are relatively cheap and with the high volume of digitisation projects that have taken place over the last few years as well as the increasing number of born digital resources that have been published, there are new opportunities. In relation to women's soccer in Ireland, this paper asks the question – where are we now? The argument will review the current literature on this subject and outline potential approaches for future research.     

Guideposts and Roadblocks to the Career-Long Scholarly Engagement of Physical Education Teacher Education Faculty

Purpose: Scholarship is essential for the growth and development of the physical education field. Over time, scholarship expectations have changed, forcing faculty members to alter time spent for research, teaching, and service. Social-cognitive career theory (SCCT) presents a model for understanding performance and persistence in an occupational environment. The interconnected aspects of SCCT have different emphasis related to self-efficacy, outcome expectations, or personal goals pursuit. This study explored physical education teacher education (PETE) faculty members’ continuing engagement in scholarly activity through SCCT. Method: Data collection included interviews with 9 senior PETE faculty members who met the criteria for “productive scholars over time.” Curriculum vitae were collected to verify productivity. Results: Data analysis revealed guidepost themes that included collaborating, finding balance, defining a research process, and maintaining a strong work ethic. Roadblocks encountered included other obligations and lack of support for research. Conclusions: Participants demonstrated strong self-efficacy; held high, positive expectations for success; and set very specific, clear, and deliberate goals. Participant behavior was moderated by their personal attributes (capacity to build relationships, set goals, and maintain interest and passion) and was tempered by the environments in which they worked. Fostering similar behaviors has the potential to guide future and current PETE faculty members in creating supportive and encouraging atmospheres for sustained productivity. The lack of literature relating to this topic warrants the need for more research exploring the influential factors and benefits gained from sustained scholarly productivity over time for PETE faculty members.     

Individual Differences Influencing Immediate Effects of Internal and External Focus Instructions on Children’s Motor Performance

Purpose: A large pool of evidence supports the beneficial effect of an external focus of attention on motor skill performance in adults. In children, this effect has been studied less and results are inconclusive. Importantly, individual differences are often not taken into account. We investigated the role of working memory, conscious motor control, and task-specific focus preferences on performance with an internal and external focus of attention in children. Methods: Twenty-five children practiced a golf putting task in both an internal focus condition and external focus condition. Performance was defined as the average distance toward the hole in 3 blocks of 10 trials. Task-specific focus preference was determined by asking how much effort it took to apply the instruction in each condition. In addition, working memory capacity and conscious motor control were assessed. Results: Children improved performance in both the internal focus condition and external focus condition (?_p² = .47), with no difference between conditions (?_p² = .01). Task-specific focus preference was the only factor moderately related to the difference between performance with an internal focus and performance with an external focus (r = .56), indicating better performance for the preferred instruction in Block 3. Conclusion: Children can benefit from instruction with both an internal and external focus of attention to improve short-term motor performance. Individual, task-specific focus preference influenced the effect of the instructions, with children performing better with their preferred focus. The results highlight that individual differences are a key factor in the effectiveness in children’s motor performance. The precise mechanisms underpinning this effect warrant further research.     

Self-belief does make a difference: A reciprocal effects model of the causal ordering of physical self-concept and gymnastics performance

Abstract

A large body of research in support of the reciprocal effects model of causal ordering demonstrates that prior academic self-concept predicts subsequent academic achievement beyond what can be explained in terms of prior achievement. Here we evaluate the generalizability of this support for the reciprocal effects model to a physical activity context in which achievement is reflected in gymnastics skills on a standardized gymnastics performance test evaluated by expert judges. Based on the responses of 376 adolescents collected at the start (T1) and end (T2) of a gymnastics training programme, there is support for a reciprocal effects model in which there are significant paths leading from both T1 gymnastics self-concept to T2 gymnastics skills and from T1 gymnastics skills to T2 self-concept. Although there were gender and age effects (girls and older participants had better gymnastics skills, boys had higher self-concepts), multiple group structural equation models indicated that support for the reciprocal effects model generalized over responses by boys and girls. In summary, self-concept and performance are both determinants and consequences of each other.     

Evolution and revolution: Gauging the impact of technological and technical innovation on Olympic performance

Abstract

A number of studies have pointed to a plateauing of athletic performance, with the suggestion that further improvements will need to be driven by revolutions in technology or technique. In the present study, we examine post-war men's Olympic performance in jumping events (pole vault, long jump, high jump, triple jump) to determine whether performance has indeed plateaued and to present techniques, derived from models of human growth, for assessing the impact of technological and technical innovation over time (logistic and double logistic models of growth). Significantly, two of the events involve well-documented changes in technology (pole material in pole vault) or technique (the Fosbury Flop in high jump), while the other two do not. We find that in all four cases, performance appears to have plateaued and that no further “general” improvement should be expected. In the case of high jump, the double logistic model provides a convenient method for modelling and quantifying a performance intervention (in this case the Fosbury Flop). However, some shortcomings are revealed for pole vault, where evolutionary post-war improvements and innovation (fibre glass poles) were concurrent, preventing their separate identification in the model. In all four events, it is argued that further general growth in performance will indeed need to rely predominantly on technological or technical innovation.     

The Development of Skill and Knowledge During a Sport Education Season of Track and Field Athletics

Purpose: The purpose of this study was to examine the relative effectiveness of 2 forms of physical education instruction on students' skill and technical performance, as well as content knowledge in 3 track and field events. Method: Students from 6 classes in 3 Portuguese schools completed 900-min units conducted under the auspices of sport education or a more traditional teacher-directed format. Classes were randomly assigned to these conditions within each school. Results: Although both groups improved significantly from pretest to posttest, the sport education classes outperformed the traditional classes in both technique and skill execution. Only the sport education group made significant improvements in content knowledge. When the students in the traditional group were tested at the point in time where they would usually complete a unit of physical education (450 min), there were no significant improvements in any of the study's variables. Conclusion: The explanation given for the superior performance outcomes of the sport education classes lies in the nature of formal competition and team affiliation, which are cornerstones of this pedagogical model. That is, students take their learning experiences more seriously than in traditional and often inauthentic classes. In terms of content knowledge, the fact that sport education has a level of content-embedded accountability that holds students accountable for their officiating duties is postulated as a significant contributor to their increased understanding of rules and protocols of athletic events.     

Student performance in high-stakes examinations based on content area in senior secondary (VCE) physical education

Background: Senior secondary physical education courses for certification continue to evolve with curricula reform occurring to ensure content is contemporary, student learning outcomes are maximised and assessment practices are valid for determining certification of students. The content of examinable senior secondary physical education courses privilege theoretical concepts over student physical performance of motor skills and this is reflected in the use of written assessment of cognitive outcomes in many courses internationally.

Purpose: Student examination data were analysed from the year 12 (exit year) written examination of Victorian Certificate of Education (VCE) Physical Education to determine if student performance varied by Area of Study (content). Additionally, it investigated whether there was a relationship between student performance in each of the four Areas of Study examined and overall examination performance and considered the alignment of curriculum, assessment and pedagogy and the implications the findings may have on the teaching of VCE Physical Education in the future.

Methods: A secondary data analysis of student results from the 2011 (n?=?9323; M?=?5212, F?=?4111) and 2012 (n?=?8781; M?=?5011, F?=?3770) VCE Physical Education (Victoria, Australia) examinations were conducted. Examination questions were categorised by content, and means and standard deviations (SD) for discrete and continuous data were calculated, and categorical variables were presented as percentages. Regression analysis was also performed to establish the relationship between student cohort size and examination scores. An independent sample t-test was used to explore the examination scores and each Area of Study scores across 2011 and 2012. A one-way ANOVA were performed to investigate the differences of each Area of Study scores between examination grades from UG to A+.

Results: The results showed a positive correlation between VCE Physical Education student cohort size in a school and examination score in 2011 and 2012. Student performance differed across both years (2011 and 2012) and across Areas of Study within each of the years analysed. Students performed significantly lower on questions relating to the ‘planning, implementing and evaluating a training program’ Area of Study in 8 of the 11 possible grades (2011) and 10 of the possible 11 grades (2012) than in each of the other Areas of Study.

Discussion and conclusions: This study reveals that student performance on the external VCE Physical Education examination is not consistent across all content areas (Areas of Study). This may suggest that student difficulties in answering questions based on content in ‘planning, implementing and evaluating a training program’ result from topic or content difficulty rather than process or question difficulty. From these findings, implications for teaching examinable physical education effectively include the use of experiential learning and practical experiences to provide students with experiences from which they can draw knowledge when completing written assessment tasks. Additionally, the importance of having the required content knowledge to teach examinable physical education confidently for pre-service and in-service teachers is discussed.     

The Super Bowl at 50 or L

Abstract

In the short span of a half-century the Super Bowl has grown from a modest championship game between two football leagues into an outsized mid-winter holiday co-produced by the National Football League and the combined efforts of the American advertising and television industries. It has grown from a one-day into a two-week festival featuring a vast range of events, parties, and a championship football game. Fifty years on, half of the population of the United States and a worldwide television audience participate in Super Bowl activities and festivities either live or virtually. Television, marketing, and a wide range of media platforms have aided and abetted the growth of this celebration of football and consumption. Although there are many ways to describe the Super Bowl it is the nineteenth century vocabulary of the economist Thorstein Veblen that best captures its essence. In Veblen’s words it is a case of ‘conspicuous consumption’ now running on steroids.