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201.
This paper utilises critical discourse analysis to explore and discuss the expression of health within physical education (PE) curricula in secondary schools in England and Wales. The study adopted a case study approach, involving three state secondary schools in England and two in Wales. Data were drawn from interviews with PE teachers and health-related school documentation in the five schools plus observation of a health-related unit of work in one of the schools. The expression of health in PE broadly reflected ideologies associated with promoting ‘fitness for life’ and ‘fitness for performance’. The extent to which teachers could express their favoured discourses in policy and practice was partly determined by their position of power, relative to others within the department, although they could find ways of privileging their favoured discourse in their own lessons. Curiously, rhetorical ‘fitness for life’ discourses were commonly expressed through ‘fitness for performance’ practices in the form of testing and training activities. These were found to be the most common contexts for the delivery of health-related learning. In terms of Bernstein's location of discourses within contexts of educational systems, the findings suggest that recontextualisation of statutory PE curricula occurred at the site of the relocation of discourse (in this case, within PE departments in secondary state schools), resulting in the privileging of discourses heavily influenced by sport- and fitness-related ideologies. Improved awareness of the expression of health in secondary school PE curricula should help to better understand and address the complex tensions between health-related policies and practices in schools. 相似文献
202.
Mary Jo Podgurski 《The Journal of perinatal education》2014,23(4):169-171
Celebrating Elisabeth Bing’s 100th birthday is an honor and a joy. Elisabeth’s life is an inspiration to all who continue her mission of birth and women’s advocacy. Dr. Mary Jo Podgurski strives to capture the indomitable spirit of the founder of American Society for Psychoprophylaxis in Obstetrics (ASPO)/Lamaze (now Lamaze International) through a personal reflection. Elisabeth Bing lived with valor. She is a role model to women everywhere, the mother of childbirth education, and a woman of great courage and wisdom. Thank you, Elisabeth, for the huge gift of your life. 相似文献
203.
Thiago Telles Renato Barroso Pedro Figueiredo Diego Fortes de Souza Salgueiro João Paulo Vilas-Boas Orival Andries Junior 《Journal of sports sciences》2017,35(9):906-911
Hand paddles and parachutes have been used in order to overload swimmers, and consequently increase the propulsive force generation in swimming. However, their use may affect not only kinematical parameters (average speed, stroke length and stroke rate), but also time gaps between propulsive phases, assessed through the index of coordination (IdC). The objective of this study was to assess the effects of hand paddles and parachute use, isolated or combined, on kinematical parameters and coordination. Eleven swimmers (backstroke 50-m time: 29.16 ± 1.43 s) performed four 15-m trials in a randomised order at maximal intensity: (1) without implements (FREE), (2) with hand paddles (HPD), (3) with parachute (PCH) and (4) with hand paddles plus parachute (HPD+PCH). All trials were video-recorded (60 Hz) in order to assess average speed, stroke rate, stroke length, five stroke phases and index of coordination. When average swimming speed was compared to FREE, it was lower in PCH and HPD+PCH, and higher in HPD. Stroke rate decreased in all overloaded trials compared to FREE. The use of hand paddles and parachute increased and decreased stroke length, respectively. In addition, propulsive phase duration was increased when hand paddles were used, and time gaps shifted towards zero (no time gap), especially when hand paddles were combined with parachute. It is conceivable that the combined use of hand paddles and parachute, once allowing overloading both propulsive and resistive forces, provides a specific stimulus to improve muscle strength and propulsive continuity. 相似文献
204.
Michael C. Zourdos Caleb D. Bazyler Edward Jo Andy V. Khamoui Bong-Sup Park Sang-Rok Lee 《Research quarterly for exercise and sport》2017,88(1):114-119
Purpose: The purpose of this investigation was to examine the effects of a submaximal running warm-up on running performance in male endurance athletes (n = 16, Mage = 21 ± 2 years, MVO2max = 69.3 ± 5.1 mL/kg/min). Method: Endurance performance was determined by a 30-min distance trial after control and submaximal running warm-up conditions in a randomized crossover fashion. The warm-up began with 5 min of quiet sitting, followed by 6 min of submaximal running split into 2-min intervals at speeds corresponding to 45%, 55%, and 65% maximal oxygen consumption (VO2max). A 2-min walk at 3.2 km/hr concluded the 13-min warm-up protocol. For the control condition, participants sat quietly for 13 min. VO2 and heart rate (HR) were determined at Minutes 0, 5, and 13 of the pre-exercise protocol in each condition. Results: At the end of 13 min prior to the distance trial, mean VO2 (warm-up = 14.1 ± 2.2 mL/kg/min vs. control = 5.5 ± 1.7 mL/kg/min) and mean HR (warm-up = 105 ± 11 bpm vs. control = 67 ± 11 bpm) were statistically greater (p < .001) in the warm-up condition compared with the control condition. The distance run did not statistically differ (p = .37) between the warm-up (7.8 ± 0.5 km) and control (7.7 ± 0.6 km) conditions; however, effect size calculation revealed a small effect (d = 0.2) in favor of the warm-up condition. Thus, the warm-up employed may have important and practical implications to determine placing among high-level athletes in close races. Conclusions: These findings suggest a submaximal running warm-up may have a small but critical effect on a 30-min distance trial in competitive endurance athletes. Further, the warm-up elicited increases in physiological variables VO2 and HR prior to performance; thus, a submaximal specific warm-up should warrant consideration. 相似文献
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206.
Wendell Arthur Lopes Jo?o Carlos Locatelli Caroline Ferraz Sim?es Rogério Toshiro Passos Okawa 《运动与健康科学(英文)》2021,(4):507-509
We read with great interest the study by Way et al.1 pub-lished in this journal, which described and compared the acute changes in central arterial stiffness (A... 相似文献
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209.
Can districtwide portfolio assessment yield reliable scores? How can content and scoring be standardized? How can such assessment be integrated with instruction? What are the costs? 相似文献
210.