A Water Displacement Method for the Determination of Breast Volume

Abstract

The study followed a four-phase design. In Phase I an exhaustive search was conducted for all English language coaching research published in journals from 1970 to 2001. In Phase II, copies of the research were obtained. An expert panel conducted a manual search and a review in Phase III to address validity. Analysis of the research was completed in Phase IV (Culver, Gilbert, &; Trudel, 2003; Silverman &; Skonie, 1997). Over 1,100 articles were reviewed, and 610 met the inclusion criteria. Selected findings include: (a) a relatively low mean spread across many journals, (b) a focus on coaching behavior using quantitative methodologies, and (c) a primary emphasis on team sports in school contexts.     

A review of the use of a systematic observation method in coaching research between 1997 and 2016

A systematic observation method has been one of the most popularly employed methods in coaching research. Kahan’s review of this method conducted between 1975 and 1997 highlighted the key trends in this research, and offered methodological guidance for researchers wishing to use this method in their research. The purpose of this review was to provide an update of the use of a systematic observation method in coaching research and assess the extent to which the calls made by Kahan have been addressed. While in some respect this field of study has progressed (i.e., the introduction of qualitative methods), researchers adopting this method have failed to attend to many of the issues Kahan raised. For this method to continue to make a positive contribution towards the coaching research literature, researchers need to more critically reflect on how and why they are employing this method. At present, some of the decisions made by researchers who have conducted work in this area are not justified with a rationale. It is our intention that this review will serve as guidance for researchers and practitioners, and editors and reviewers of journals when attempting to assess the quality of this type of work.     

Where are the women in women's sports? Predictors of female athletes' interest in a coaching career

In this study, we used social cognitive career theory (Lent, Brown, & Hackett, 1994) to examine the development of female athletes' career interest in coaching and, specifically, the impact of contextual factors (female coaching role models, working hours, and perceived discrimination) on coaching self-efficacy and outcome expectations. Participants were 205 predominantly White, heterosexual female student athletes. A path analysis indicated that role models and working hours predicted coaching self-efficacy, which predicted coaching outcome expectations. Additionally, coaching self-efficacy, coaching outcome expectations, and contextual factors predicted coaching interest. Practical implications are discussed as well as suggestions for further research in this relatively unexplored area.     

A multimethod examination of the relationship between coaching behavior and athletes' inherent self-talk

The aim of the present research was to investigate the relationship between coaching behavior and athletes' inherent self-talk (ST). Three studies were conducted. The first study tested the construct validity of the Coaching Behavior Questionnaire (CBQ) in the Greek language, and provided support for its original factor structure. The second study examined the relationships between coaching behavior and athletes' ST in field, with two different samples. The results showed that supportive coaching behavior was positively related to positive ST (in one sample) and negatively related to negative ST (in both samples), whereas negative coaching behavior was negatively related to positive ST (in one sample) and positively related to negative ST (in both samples). Finally, the third study examined the relationships experimentally, to produce evidence regarding the direction of causality. The results showed that variations in coaching behavior affected participants' ST. Overall, the results of the present investigation provided considerable evidence regarding the links between coaching behavior and athletes' ST and suggested that coaches may have an impact on athletes' thoughts.     

Using Appreciative Inquiry to explore Australian football coaches' experience with game sense coaching

This paper reports on a project framed as a strengths-based case study in the field of sport coaching. The aim of this research was twofold. First, the project trialled. Appreciate Inquiry (AI) for sport pedagogy research and explain how AI can be used in sport coaching research. Second, using an appreciative perspective, the aim of the research was to find greater meaning in the two coaches' practice to explain the forces driving the shaping and the implementation of Game Sense (GS) coaching. This is particularly pertinent given strong advocacy for GS as a preferred sport pedagogy but a slow deployment in the field of sport coaching in Australia. Through the story of experience that emerged a reculturing of coaching practice was revealed and the elements that sustained GS coaching highlighted. This research improves understanding of decisions made by coaches to change practice and which are sustained because they bring ‘life’ to the coach. AI has not been used previously to case study coaching practice generally and GS coaching in Australian football specifically. Further research examining the long-term and accumulated benefits of AI for qualitative sport coaching research is proposed, as is further investigation of coaches' experience with GS coaching across a broad range of sports from entry and grassroots through to elite level sport.     

A Descriptive Analysis of Elite-Level Racquetball

In this study, we used social cognitive career theory (Lent, Brown, &; Hackett, 1994) to examine the development of female athletes' career interest in coaching and, specifically, the impact of contextual factors (female coaching role models, working hours, and perceived discrimination) on coaching self-efficacy and outcome expectations. Participants were 205 predominantly White, heterosexual female student athletes. A path analysis indicated that role models and working hours predicted coaching self-efficacy, which predicted coaching outcome expectations. Additionally, coaching self-efficacy, coaching outcome expectations, and contextual factors predicted coaching interest. Practical implications are discussed as well as suggestions for further research in this relatively unexplored area.     

An Evaluation of the Psychometric Properties of the Coaching Efficacy Scale for Coaches From the United States of America

This study extends validity evidence for the Coaching Efficacy Scale (CES; Feltz, Chase, Moritz, & Sullivan, 1999) by providing an evaluation of the psychometric properties of the instrument from previously collected data on high school and college coaches from United States. Data were fitted to a multidimensional item response theory model. Results offered some supporting evidence concerning validity based on the fit of a multidimensional conceptualization of coaching efficacy (i.e., motivation, game strategy, technique, and character building) as compared to a unidimensional conceptualization of coaching efficacy (i.e., total coaching efficacy), the fit of the majority of items to the measurement model, the internal consistency of coaching efficacy estimates, and the precision of total coaching efficacy estimates. However, concerns exist relating to the rating scale structure, the precision of multidimensional coaching efficacy estimates, and misfit of a couple of items to the measurement model. Practical recommendations for both future research with the CES and for the development of a revised instrument are forwarded.     

Individual differences, perceived task characteristics, and preferences for teaching and coaching.

One hundred ninety-two undergraduate physical education students participated in this study of the influence of individual differences, group, and task factors on respondents' preferences for teaching or coaching. The individual difference factors were gender, managerial potential (Gough, 1984), and sex role attributes (Spence & Helmreich, 1986). The group and task differences were measured by a specially developed scale that was factor analyzed to yield six factors: job status, job significance, job variety and control, job identity, ease of discipline, ease of motivation. Subgroup analyses showed that men preferred more to coach than women did, and women preferred more to teach than men did. Men and women perceived greater job variety in coaching and greater control in teaching. The genders did not differ in managerial motivation or in any of the other perceived characteristics of the teaching and coaching roles. Finally, preference for teaching or coaching was influenced by gender, perceived ease of motivating students and athletes, and perceived job variety. These results were discussed in relation to existing literature, and future research directions are identified.     

Defining sport tourism: a content analysis of an evolving epistemology

ABSTRACT

This paper conducts a systematic evaluation of one of the primary journals in the field of sport tourism research since its establishment in 1993. Drawing on extant literature with varying disciplinary approaches, this meta-review traces the development of key concepts and definitions underlying an evolving epistemology connected to sport tourism, as evidenced within the Journal of Sport & Tourism (JS&T). It does so by examining research specific to content previously unexplored. The study first conducted a content analysis based upon a keyword search, focusing on phrases in which sport and tourism appeared together. The study reviewed all texts, including articles, book chapters and editorials (n?=?517), for the years 1993–2014. We then constructed a thematic analysis based upon the most common defining elements found within these texts. These extracted definitions were analyzed according to their paradigmatic elements. Based on these findings, this paper suggests the need to further define the epistemological boundaries of sport tourism for the twenty-first century.     

Prosocial and antisocial behavior in sport: the role of coaching style, autonomous vs. controlled motivation, and moral disengagement

The purpose of this study was to examine whether the relationships between contextual factors (i.e., autonomy-supportive vs. controlling coaching style) and person factors (i.e., autonomous vs. controlled motivation) outlined in self-determination theory (SDT) were related to prosocial and antisocial behaviors in sport. We also investigated moral disengagement as a mediator of these relationships. Athletes' (n = 292, M = 19.53 years) responses largely supported our SDT-derived hypotheses. Results indicated that an autonomy-supportive coaching style was associated with prosocial behavior toward teammates; this relationship was mediated by autonomous motivation. Controlled motivation was associated with antisocial behavior toward teammates and antisocial behavior toward opponents, and these two relationships were mediated by moral disengagement. The results provide support for research investigating the effect of autonomy-supportive coaching interventions on athletes' prosocial and antisocial behavior.     

Sex Bias and the Validity of Believed Differences between Male and Female Interscholastic Athletic Coaches

Abstract

Previous research indicates that young athletes as well as athletic administrators hold gender-role stereotypical beliefs about coaches that disfavor females. The validity of two such beliefs (lack of qualified female coaches and time constraints due to family responsibilities) was examined in a statewide survey of 256 female and 296 male interscholastic coaches and a nationwide survey of 2,719 male and 1,449 female interscholastic coaches. Statistical analyses (p < .001) indicated that female coaches were (a) more qualified than their male counterparts with respect to coaching experience with female teams, professional training, and professional experience; (b) as qualified as male coaches with regard to intercollegiate playing experience; and (c) less qualified than male coaches with respect to high school playing experience and coaching experience with male teams. Findings also indicated that male rather than female coaches more often experienced time constraints due to family responsibilities.     

The effect of coaching intervention on elite fast bowling technique over a two year period

Fast bowling in cricket is an activity that is well recognised as having high injury prevalence and there has been debate regarding the most effective fast bowling technique. The aim of this study was to determine whether two-year coaching interventions conducted in a group of elite young fast bowlers resulted in fast bowling technique alteration. Selected kinematics of the bowling action of 14 elite young fast bowlers were measured using an 18 camera Vicon Motion Analysis system before and after two-year coaching interventions that addressed specific elements of fast bowling technique. Mann-Whitney tests were used to determine whether any changes in kinematic variables occurred pre- and post-intervention between those who had the coaching interventions and those who didn't. The coaching interventions, when applied, resulted in a more side-on shoulder alignment at back foot contact (BFC) (p = 0.002) and decreased shoulder counter-rotation (p = 0.001) however, there was no difference in the degree of change in back and front knee flexion angles or lower trunk side-flexion. This study has clearly shown that specific aspects of fast bowling technique are changeable over a two-year period in elite level fast bowlers and this may be attributed to coaching intervention.     

Coaching Efficacy,Player Perceptions of Coaches’ Leadership Styles,and Team Performance in Premier League Soccer

The coaching competency research has demonstrated the role of coaching efficacy and coaching behaviors on various athlete outcomes. However, athlete perceptions of these relationships and how they affect performance are less understood. Purpose: This study examined if coaching efficacy is predictive of player perceptions of coaches’ leadership styles, team atmosphere, and team performance in a soccer season. Method: Fifteen male premier league soccer coaches (M_age = 45.27, SD = 6.07) and 226 players (M_age = 25.66, SD = 3.96) from Botswana participated in the study. All participants completed a background information questionnaire. Coaches completed the Coaching Efficacy Scale. Players rated their coaches’ leadership styles using the Revised Leadership Scale for Sports as well as team atmosphere. Team performance was based on position in the league log and player ratings of the teams’ performance. Results: Findings showed that coaches’ self-ratings on technique efficacy predicted player perceptions of the coaches’ use of all six leadership styles. Game strategy efficacy predicted higher team atmosphere and team performance. Motivation efficacy was not significantly associated with player perceptions of the coaches’ use of any of the leadership styles, while character building efficacy was negatively associated with the various leadership styles. Conclusion: Findings provide support to previous research evidence linking higher coaching efficacy, leadership styles, and team outcomes. The study expands the emergent research within the coaching competency literature that examines player perceptions of coaches’ behaviors and leadership styles.     

Volunteer youth sport coaches' perspectives of coaching education/certification and parental codes of conduct

The vast majority of youth sport programs in the United States relies primarily on parent volunteers to serve as coaches. Unfortunately, most of these volunteer coaches have not received formal training to prepare them adequately for the role of youth sport coach. To exacerbate the issue, according to the popular media, parents and other adults can commit belligerent and even violent acts around, and often resulting from, poorly managed youth sport events. Although some efforts have been made to standardize curricula, provide training for coaches, and contain or prevent inappropriate parent behaviors, few efforts have been directed at investigating the self-described needs and concerns of the coaches from their perspectives. The purpose of the current study was to investigate the concerns and issues of youth sport coaches related to coaching and parental education. Five focus group interviews with 25 volunteer youth sport coaches were conducted to investigate these issues. Results were organized around four higher order themes that emerged from inductive content analyses: (a) coaching education content areas of need, (b) barriers and problems of offering coaching education, (c) coaching education format recommendations, and (d) efficacy of parental codes of conduct. Results were discussed in terms of the potential impact administrators, coaches, and parents could have in implementing formal coaching education programs and developing their coaching education practices.     

Where are all the female participants in Sports and Exercise Medicine research?

Abstract

The aim of this study is to estimate the ratio of male and female participants in Sports and Exercise Medicine research. Original research articles published in three major Sports and Exercise Medicine journals (Medicine and Science in Sports and Exercise, British Journal of Sports Medicine and American Journal of Sports Medicine) over a three-year period were examined. Each article was screened to determine the following: total number of participants, the number of female participants and the number of male participants. The percentage of females and males per article in each of the journals was also calculated. Cross tabulations and Chi-square analysis were used to compare the gender representation of participants within each of the journals. Data were extracted from 1382 articles involving a total of 6,076,580 participants. A total of 2,366,968 (39%) participants were female and 3,709,612 (61%) were male. The average percentage of female participants per article across the journals ranged from 35% to 37%. Females were significantly under-represented across all of the journals (χ² = 23,566, df = 2, p < 0.00001). In conclusion, Sports and Exercise Medicine practitioners should be cognisant of sexual dimorphism and gender disparity in the current literature.     

Dispositions of elite-level Australian rugby coaches towards game sense: characteristics of their coaching habitus

Bourdieu's analytic concept of habitus has provided a valuable means of theorising coach development but is yet to be operationalised in empirical research. This article redresses this oversight by drawing on a larger study that inquired into how the ‘coaching habitus’ of elite-level Australian and New Zealand rugby coaches structured their interpretation and use of the Game Sense approach to coaching to illustrate how habitus can be operationalised. It focuses on the identification of characteristics of the individual coaching habitus of four elite-level Australian rugby coaches and how they shape their interpretation and use of Game Sense. Drawing on suggestions made by Lau, we identify the characteristics of four individual ‘coaching habitus’ by examining their views on: (1) the characteristics of good coaches; (2) characteristics of great rugby players and how to develop them; and (3) their dispositions towards innovation in coaching.     

Examining the relationships between challenge and threat cognitive appraisals and coaching behaviours in football coaches

Previous research demonstrates that sports coaching is a stressful activity. This article investigates coaches’ challenge and threat cognitive appraisals of stressful situations and their impact on coaching behaviour, using Blascovich and Mendes’ (2000) biopsychosocial model as a theoretical framework. A cross-sectional correlational design was utilised to examine the relationships between irrational beliefs (Shortened general attitude and belief scale), challenge and threat appraisals (Appraisal of life events scale), and coaching behaviours (Leadership scale for sports) of 105 professional football academy coaches. Findings reveal significant positive associations between challenge appraisals and social support, and between threat appraisals and autocratic behaviour, and a significant negative association between threat appraisals and positive feedback. Results also show that higher irrational beliefs are associated with greater threat, and lesser challenge cognitive appraisals. However, no associations were revealed between irrational beliefs and challenge cognitive appraisals. Additionally, findings demonstrate a positive relationship between age and training and instruction. Results suggest that practitioners should help coaches to appraise stressful situations as a challenge to promote positive coaching behaviours.     

我国甲级队排球教练员执教效能的研究

运用问卷调查、访谈和数理统计等研究方法,对参加2004年全国排球大奖赛和全国排球锦标赛教练员的执教效能、教练员的个人风格、执教业绩与执教效能的关系等问题进行研究。结果表明,我国甲级队排球教练员执教效能由专项训练效能、创新效能、教育管理效能、指挥效能、学习科研效能、协作效能以及思想修养构成;不同性别、文化程度、运动等级教练员的执教效能没有显著差异;不同执教年限、职称、职务教练员的执教效能有显著差异;年龄对教练员的执教效能有非常显著影响;执教效能与执教业绩相关。