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Alannah K.A. McKay, Peter Peeling, David B. Pyne, Nicolin Tee, Marijke Welveart, Ida A. Heikura, Avish P. Sharma, Jamie Whitfield, Megan L. Ross, Rachel P.L. van Swelm, Coby M. Laarakkers, and Louise M. Burke

This study implemented a 2-week high carbohydrate (CHO) diet intended to maximize CHO oxidation rates and examined the iron-regulatory response to a 26-km race walking effort. Twenty international-level, male race walkers were assigned to either a novel high CHO diet (MAX = 10 g/kg body mass CHO daily) inclusive of gut-training strategies, or a moderate CHO control diet (CON = 6 g/kg body mass CHO daily) for a 2-week training period. The athletes completed a 26-km race walking test protocol before and after the dietary intervention. Venous blood samples were collected pre-, post-, and 3 hr postexercise and measured for serum ferritin, interleukin-6, and hepcidin-25 concentrations. Similar decreases in serum ferritin (17–23%) occurred postintervention in MAX and CON. At the baseline, CON had a greater postexercise increase in interleukin-6 levels after 26 km of walking (20.1-fold, 95% CI [9.2, 35.7]) compared with MAX (10.2-fold, 95% CI [3.7, 18.7]). A similar finding was evident for hepcidin levels 3 hr postexercise (CON = 10.8-fold, 95% CI [4.8, 21.2]; MAX = 8.8-fold, 95% CI [3.9, 16.4]). Postintervention, there were no substantial differences in the interleukin-6 response (CON = 13.6-fold, 95% CI [9.2, 20.5]; MAX = 11.2-fold, 95% CI [6.5, 21.3]) or hepcidin levels (CON = 7.1-fold, 95% CI [2.1, 15.4]; MAX = 6.3-fold, 95% CI [1.8, 14.6]) between the dietary groups. Higher resting serum ferritin (p = .004) and hotter trial ambient temperatures (p = .014) were associated with greater hepcidin levels 3 hr postexercise. Very high CHO diets employed by endurance athletes to increase CHO oxidation have little impact on iron regulation in elite athletes. It appears that variations in serum ferritin concentration and ambient temperature, rather than dietary CHO, are associated with increased hepcidin concentrations 3 hr postexercise.

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Lambros Stefanou, Niki Tsangaridou, Charalambos Y. Charalambous, and Leonidas Kyriakides

Purpose: Teacher content knowledge (CK) and its contribution to student achievement (SA) are understudied in physical education, especially concerning the examination of the effectiveness of professional development (PD) programs using direct measures of teachers’ CK and SA. To make progress in this research area, this study investigated the contribution of a content-focused PD program to teachers’ CK and SA in basketball, using direct measures thereof. Methods: A quasi-experimental design was utilized to examine the contribution of a PD program. The authors measured the CK of 52 elementary classroom teachers and their fifth or sixth grade students’ (n = 913) achievement in basketball before and after the PD program. The data were analyzed using unilevel and multilevel regression analyses. Results: Teachers who participated in the PD program exhibited higher learning gains in their CK; their students also exhibited higher learning gains. Discussion and Conclusion: The study findings suggest that PD programs focused on enhancing teachers’ CK might also support SA.

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Insook Kim and Phillip Ward

Purpose: This study examined the effects of a specialized content knowledge workshop on developing teachers’ content development and adaptive competence in teaching badminton. Method: A quasi-experimental design was employed with three middle school physical education teachers who taught five or six badminton lessons before and after the content knowledge workshop (n = 66). Descriptive statistics and univariate analysis of variance were conducted to analyze the data of content development index scores and intratask adaptations. Frequency data across lessons by teachers and treatment conditions were employed for content development patterns. Results: There were statistically significant effects of the workshop in developing the teachers’ use of content development (p = .049) and adaptations (p = .000), but their effects varied by teacher. While the most used content development pattern by the teachers in comparison classes was an informing applying pattern, the teachers used a variety of content development patterns that included more task progressions in the experimental classes. Conclusion: It can be concluded that teachers’ instructional tasks and task adaptations could be improved through a well-designed professional development program. The findings can guide the direction of teacher education and professional development in ways to enhance teachers’ content development and adaptations.

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Okseon Lee, Euichang Choi, Victoria Goodyear, Mark Griffiths, Hyukjun Son, Hyunsoo Jung, and Wonhee Lee

Although physical education (PE) teachers have increased access to digital/online continuous professional development activities, there are few robust accounts of how they engage with and experience these environments. Purpose: The purpose of this study was to examine PE teachers’ participation patterns within self-directed online PE continuous professional development activities using mobile instant messenger. Methods: Data were generated from (a) 5,246 messages exchanged in the mobile instant messenger chatroom from 281 teachers, (b) semistructured interviews with 10 teachers, and (c) 1,275 messages posted by the 10 interviewed teachers. Quantitative data were analyzed for measures of central tendency, and qualitative data were analyzed inductively. Findings: Five patterns of PE teachers’ usage of mobile instant messenger were identified: (a) ringmasters, (b) passive uploaders, (c) active uploaders, (d) requesters, and (e) bystanders. Discussion: The findings suggest that each engagement pattern illustrates the differential goals of learning, types of interaction, and forms of participation by teachers engaged in online continuous professional development.

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Tsz Lun (Alan) Chu and Trent A. Petrie

Time and access to teams may be limited for sport psychology professionals, particularly those working in the college sport setting. Thus, learning how to intervene with teams and individual athletes within short, defined timeframes becomes essential for working effectively in this environment. In this article, using de Shazer’s solution-focused brief therapy along with Weinberg and Williams’s steps of psychological skills training, the authors describe the development and implementation of a brief intervention under time-limited circumstances (15 days, 15 min/day) through a preseason training program with a National Collegiate Athletic Association Division I women’s volleyball team. Then, they present data and evaluations based on the Athletic Coping Skills Inventory-28 and athlete feedback, which support program effectiveness. They further reflect on the program strengths (e.g., individualization) and challenges (e.g., limited coach involvement) to provide recommendations for intervening briefly, yet systematically and effectively, to maximize athletes’ psychological skills under constraints.

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Lukas Stenzel, Melissa Röcken, Simon Borgmann, and Oliver Stoll

The present case study describes the content and implementation of a blended psychological skills training, consisting of an app and workshops, with a group of athletes (N = 44) from a Bundesliga soccer academy in Germany. In a pre–post design, athletes completed different questionnaires at two measurement points. There was a significant increase in concentration and self-efficacy and more frequent recovery after the intervention. However, athletes showed equal competition anxiety levels and more frequent stress after the intervention. The app’s training time was brief (M = 14.36 min, SD = 18.17 min) over 9 weeks and did not moderate the intervention’s effects. A comparison between active users and nonusers indicates that the results found were due to the workshops. The qualitative feedback indicates that motivational functions should be added to a psychological skills training app and time slots should be created in athletes’ demanding schedules to ensure high user engagement.

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Sara Hagenah, Julianne A. Wenner, Kimberly Tucker, Tyler Johnson, Hannah Calvert, and Lindsey Turner

Purpose: Physical education teachers often report feeling isolated due to being the only specialist in a building. Professional learning communities (PLCs) are spaces where individuals who hold shared goals come together to build connections, allowing educators to feel connected, valued, and empowered. The authors sought to explore the shared values created by a PLC and the process through which that value emerged. Method: The authors facilitated a PLC for eight physical education teachers within one midsized school district and collected interview and meeting audio data to explore the process and outcomes of the PLC. Results: Coding using a Value Creation Framework revealed themes of building common ground, support for big and small problems of practice, and an increased connection with other school faculty. Discussion: Teachers were able to build a supportive network where ideas could be traded, partner support was provided, and problems of practice were discussed.

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Yaohui He, Phillip Ward, Xiaozan Wang, and Guang Yang

Purpose: To examine the relationships among demographic variables, common content knowledge (CCK), and specialized content knowledge (SCK) of Chinese physical education teachers in teaching soccer. Methods: One hundred twenty-nine physical education teachers’ CCK was assessed using 27 multiple choice questions, and SCK was assessed using content maps using an SCK index score. The data were analyzed using descriptive statistics, and multiple regression analyses were conducted to determine the relationships to demographic variables as predictors of CCK and SCK. A Spearman test assessed the associations between variables. Results: For CCK, 88.4% of the teachers scored at or above 60% correct in the test. The teacher’s gender (β = 0.22, t = −2.53, p < .05) and the number of soccer workshops attended (β = 0.33, t = 2.96, p < .001) significantly predicted CCK. About 92.2% of the teachers had an SCK index score of <2.9. The number of soccer workshops attended (β = 0.31, t = 2.74, p < .05) and teaching rank significantly predicted the SCK score. There was no relationship found between CCK and SCK. Conclusions: For these participants, their preservice education and their professional development did not serve them well in teaching CCK and SCK.