Altitude training in endurance running: perceptions of elite athletes and support staff     

Gareth Turner  Barry W Fudge  Jamie S M Pringle  Neil S Maxwell  Alan J Richardson 《Journal of sports sciences》2019,37(2):163-172

This study sought to establish perceptions of elite endurance athletes on the role and worth of altitude training. Elite British endurance runners were surveyed to identify the altitude and hypoxic training methods utilised, along with reasons for use, and any situational, cultural and behaviour factors influencing these. Prior to the 2012 Olympics Games, 39 athletes and 20 support staff (coaches/practitioners) completed an internet-based survey to establish differences between current practices and the accepted “best-practice”. Almost all of the athletes (98%) and support staff (95%) surveyed had utilised altitude and hypoxic training, or had advised it to athletes. 75% of athletes believed altitude and hypoxia to be a “very important” factor in their training regime, with 50% of support staff believing the same. Athletes and support staff were in agreement of the methods of altitude training utilised (i.e. 'hypoxic dose’ and strategy), with camps lasting 3–4 weeks at 1,500–2,500 m being the most popular. Athletes and support staff are utilising altitude and hypoxic training methods in a manner agreeing with research-based suggestions. The survey identified a number of specific challenges and priorities, which could provide scope to optimise future altitude training methods for endurance performance in these elite groups.  相似文献   

Identifying the critical time period for information extraction when recognizing sequences of play     

North JS  Williams AM 《Research quarterly for exercise and sport》2008,79(2):268-273

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Stressors, coping, and coping effectiveness: gender, type of sport, and skill differences   总被引：1，自引：0，他引：1  

Nicholls AR  Polman R  Levy AR  Taylor J  Cobley S 《Journal of sports sciences》2007,25(13):1521-1530

The aim of this study was to examine stressors, coping, and coping effectiveness as a function of gender, type of sport, and skill. The sample consisted of 749 undergraduate athletes (455 males, 294 females) aged 18-38 years (mean= 19.8 years). Skill was classified as international/national, county, university, and club standard. Participants completed a stressor and coping concept map (Novak & Gowin, 1984). The results revealed gender, type of sport, and skill differences in relation to stressor frequencies, coping strategy deployment, and coping effectiveness. In contrast to previous research, females used a variety of problem-focused (e.g. planning, communication, technique-orientated coping) strategies more frequently than males. Team sport athletes reported a variety of sport-specific stressors relating to the demands of playing in a team environment. The group of national/international athletes reported using more planning, blocking, and visualization, and also reported that their coping was more effective than that of less-skilled athletes.  相似文献   

Erratum to: Bloss JE,LePrevost CE,Cofie LE,Lee JGL. Creating information resources and trainings for farmworker-serving community health workers. J Med Libr Assoc. 2022;110(1):113–118. DOI: https://doi.org/10.5195/jmla.2022.1272.     

Jamie E. Bloss 《Journal of the Medical Library Association》2022,110(1):E31

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Travel Cost Analysis of a Cultural Heritage Site: The Case of Historic St. Mary's City of Maryland   总被引：4，自引：1，他引：3  

P. Joan Poor  Jamie M. Smith 《Journal of Cultural Economics》2004,28(3):217-229

Historic St. Mary's City located in rural southern Maryland, marks the 17th century British Colonial capital of the State of Maryland. As with most cultural heritage sites, Historic St. Mary's City can be classified as possessing public goods-type characteristics, and as such, welfare benefit estimates must utilize non-market valuation techniques. To date, the primary valuation methodology used for cultural heritage sites research involves stated preference methods. This study is one of the first to employ a revealed preference methodology, the zonal travel cost model, to estimate the consumer surplus welfare measures of a cultural heritage site. We analyze three years of visitor sample data to compare three functional forms of visitor demand. The average of the annual individual consumer surplus measures ranged from approximately $8.00 to $19.26, depending on the functional forms used. When aggregated to the total number of individual paid visitors, the average annual benefit estimates range from approximately $75,492 to $176,550.  相似文献   

Staying Roman: Conquest and Identity in Africa and the Mediterranean, 439-700     

Jamie Wood 《Al-Masaq: Islam & the Medieval Mediterranean》2015,27(2):172-174

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‘Black and whiters’: the relative powerlessness of ‘active’ supporter organization mobility at English Premier League football clubs     

Jamie Cleland  Kevin Dixon 《Soccer & Society》2015,16(4):540-554

This article examines the reaction by Newcastle United supporters to the resignation of Kevin Keegan as Newcastle United manager in September 2008. Unhappy at the ownership and management structure of the club following Keegan’s departure, a series of supporter-led meetings took place that led to the creation of Newcastle United Supporters’ Club and Newcastle United Supporters’ Trust. This article draws on a non-participant observation of these meetings and argues that although there are an increasing number of ‘active’ supporters throughout English football, ultimately it is the significant number of ‘passive’ supporters who hamper the inclusion of supporters’ organizations at higher level clubs. The article concludes by suggesting that clubs, irrespective of wealth and success, need to recognize the long-term value of supporters. Failure to do so can result in fan alienation and ultimately decline (as seen with the recent cases of Coventry City and Portsmouth).  相似文献   

Teaching to the Test…or Testing to Teach: Exams Requiring Higher Order Thinking Skills Encourage Greater Conceptual Understanding     

Jamie?L.?JensenEmail author  Mark?A.?McDaniel  Steven?M.?Woodard  Tyler?A.?Kummer 《Educational Psychology Review》2014,26(2):307-329

In order to test the effect of exam-question level on fostering student conceptual understanding, low-level and high-level quizzes and exams were administered in two sections of an introductory biology course. Each section was taught in a high-level inquiry based style but was assigned either low-level questions (memory oriented) on the quizzes and exams, or high-level questions (application, evaluation, and analysis) on the quizzes and exams for the entirety of the semester. A final exam consisting of 20 low-level and 21 high-level questions was given to both sections. We considered several theoretical perspectives based on testing effect, test expectancy, and transfer-appropriate processing literature as well as the theoretical underpinnings of Bloom’s taxonomy. Reasoning from these theoretical perspectives, we predicted that high-level exams would encourage not only deeper processing of the information by students in preparation for the exam but also better memory for the core information (learned in the service of preparing for high-level questions). Results confirmed this prediction, with students in the high-level exam condition demonstrating higher performance on both the low-level final-exam items and the high-level final exam items. This pattern suggests that students who are tested throughout the semester with high-level questions acquire deep conceptual understanding of the material and better memory for the course information, and lends support to the proposed hierarchical nature of Bloom’s taxonomy.  相似文献   

Movement and physiological match demands of elite rugby league using portable global positioning systems   总被引：1，自引：1，他引：0  

Waldron M  Twist C  Highton J  Worsfold P  Daniels M 《Journal of sports sciences》2011,29(11):1223-1230

Twelve elite players from an English Super League club consented to participate in the present study using portable global positioning system (GPS) devices to assess position-specific demands. Distances covered at low-intensity running, moderate-intensity running, high-intensity running, very high-intensity running, and total distance were significantly (P < 0.05) lower in forwards compared with outside backs and adjustables. Metres per minute was higher in adjustables and forwards, owing to higher values for relative distance in medium-intensity running and a rise in high-intensity running from previous absolute values. Sprint distance, sprint frequency, and peak speed were higher in outside backs than both adjustables and forwards. A moderate, significant correlation (r = 0.62, P = 0.001) was apparent between session ratings of perceived exertion and summated heart rate. Results support the requirement for position-specific conditioning and provide preliminary evidence for the use of session ratings of perceived exertion as a measure of match load.  相似文献   

“两段式”单选题例析     

单旭珠 《英语辅导》2003,(5):18-19

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