Inspiratory muscle warm-up and inspiratory muscle training: separate and combined effects on intermittent running to exhaustion     

Lomax M  Grant I  Corbett J 《Journal of sports sciences》2011,29(6):563-569

In the present study, we examined the independent and combined effects of an inspiratory muscle warm-up and inspiratory muscle training on intermittent running to exhaustion. Twelve males were recruited to undertake four experimental trials. Two trials (Trials 1 and 2) preceded either a 4-week training period of 1 × 30 breaths twice daily at 50% (experimental group) or 15% (control group) maximal inspiratory mouth pressure (PImax). A further two trials (Trials 3 and 4) were performed after the 4 weeks. Trials 2 and 4 were preceded by a warm-up: 2 × 30 breaths at 40% PImax. Pre-training PImax and distance covered increased (P < 0.05) similarly between groups after the warm-up (~11% and ~5-7% PImax and distance covered, respectively). After training, PImax increased by 20 ± 6.1% (P < 0.01; d = 3.6) and 26.7 ± 6.3% (P < 0.01; d = 3.1) when training and warm-up were combined in the experimental group. Distance covered increased after training in the experimental group by 12 ± 4.9% (P < 0.01; d = 3.6) and 14.9 ± 4.5% (P < 0.01; d = 2.3) when training and warm-up interventions were combined. In conclusion, inspiratory muscle training and inspiratory muscle warm-up can both increase running distance independently, but the greatest increase is observed when they are combined.  相似文献   

How full is your luggage? Background knowledge of zoo visitors regarding sharks     

João Pedro Correia das Neves  Rute Cristina Rocha Monteiro 《Environmental Education Research》2014,20(3):291-312

For the general population, sharks have a reputation that does not really fit with their biological and ecological nature. Informal surveys often classify sharks as dangerous, aggressive and/or man-eaters. This apparent common knowledge seems difficult to detach from the conscience of many worldwide zoo visitors, even with the help of shark-focused educational programmes. As so, how can zoos and aquariums contribute to a change in this paradigm? Are the education and conservation strategies effective to the average zoo visitor? In this study, young visitors’ perceptions regarding sharks were assessed with the goal of identifying a valid Learning Progression, thus helping to update and develop different and more effective educational strategies and methodologies. The study took place at Zoomarine, an oceanographic park located in southern Portugal, with visitors aged between 8 and 16. A case study was conducted using a qualitative research approach (drawings and interviews) resulting in a Learning Progression Hypothesis. The proposed Learning Progression is composed of three knowledge levels for the participants’ biological perceptions regarding sharks. The results of this study showed a clear predominance of anthropomorphic and anthropocentric visions, as well as a utilitarian view of sharks and ecosystem, thus conditioning the visitors’ epistemological knowledge.  相似文献   

The Reading–Spelling Connection: Developing and Evaluating a Beginning Spelling Intervention for Children at Risk of Reading Disability     

Lana Edwards Santoro  Michael D. Coyne  Deborah C. Simmons 《Learning disabilities research & practice》2006,21(2):122-133

Abstract In this article, we describe the development and evaluation of a beginning spelling intervention for young children at risk of reading disability. We first summarize the literature that supports beginning spelling as an ideal method for strategically integrating the beginning reading big ideas of phonemic awareness and alphabetic understanding. We then summarize the literature on effective instructional principles for students at risk of reading disability. Next, we describe how instructional design was applied to the development of an intervention for young children at risk of reading disability, then summarize the findings of an experimental study supporting the effectiveness of this intervention. Finally, we provide selected examples from the spelling intervention to illustrate the findings' translation into instructional practice.  相似文献   

Human Computer Interaction: Issues and Challenges: Qiyang Chen, editor. London: Idea Group Publishing, 2001. 255 pp. $74.95 isbn 1-878289-91-8 (paperback) also available as a pdf file $59.95     

Martha Jo Sani 《Government Information Quarterly》2003,20(4):426-427

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The Samuel T. Orton Award for 1976 Presented by The Orton Society to Roger E. Saunders     

Betty Wells 《Annals of dyslexia》1977,27(1):1-6

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Review article: ‘Child‐minding and Day Nurseries: What Kind of Care? by Betty Mayall and Pat Petrie     

Betty Perry 《Cambridge Journal of Education》1984,14(1):30-32

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INTERNATIONAL EDUCATION AND TEACHER PREPARATION     

Betty Reardon 《Higher Education in Europe》1984,9(2):34-39

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Recipes for fun     

Ann Cole  Carolyn Haas  Betty Weinberger 《Early Childhood Education Journal》1977,4(4):41-42

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PARTY IDENTIFICATION AND ATTITUDES TOWARDS HOMOSEXUALS IN GREAT BRITAIN     

Hayes  Bernadette C.; Moran-Ellis  Jo 《Int. Journal of Public Opinion Research》1995,7(1):23-39

Legislative activity and controversy concerning the issue ofhomosexual rights and practices has intensified in Britain overthe last decade. Despite this increase in intensity, however,the question of mass public opinion in relation to homosexualrights and practices has received little empirical investigation.In an effort to remedy this situation, this paper focuses onthe influence of party identification in determining publicattitudes towards homosexuals. Using data from the British SocialAttitudes Surveys, the results suggest that although party identificationexerts an independent and statistically significant effect onattitudes towards homosexuals, in all cases, however, theseeffects are both secondary and variable. Other equally, if notmore salient, determinants include: gender, education, age,occupation, and type of homosexual relationship. Of these varioussocio–demographic variables, both age and education standout as having the strongest and most consistent effect. In otherwords, at least as far as current British society is concerned,anti-homosexual views are most prevalent among both older individualsas well as the lesser educated.  相似文献   

Intra-task variability of trunk coordination during a rate-controlled bipedal dance jump     

Smith JA  Siemienski A  Popovich JM  Kulig K 《Journal of sports sciences》2012,30(2):139-147

In this study, we investigated trunk coordination during rate-controlled bipedal vertical dance jumps. The aims of the study were to investigate the pattern of coordination and the magnitude of coordination variability within jump phases and relative to phase-defining events during the jump. Lumbar and thoracic kinematics were collected from seven dancers during a series of jumps at 95 beats per minute. The vector coding technique was used to quantify the pattern and variability of trunk coordination. Coordination was predominantly anti-phase during propulsion and landing. Mean coordination variability peaked just before the landing phase and at the transition from landing to propulsion phases, and was lowest during the propulsion phase just before toe-off. The results indicate that peaks in variability could be explained by task and phase-specific biomechanical demands.  相似文献