Influence of recovery intensity on time spent at maximal oxygen uptake during an intermittent session in young, endurance-trained athletes     

Thevenet D  Leclair E  Tardieu-Berger M  Berthoin S  Regueme S  Prioux J 《Journal of sports sciences》2008,26(12):1313-1321

In this study, we examined the effects of three recovery intensities on time spent at a high percentage of maximal oxygen uptake (t90[Vdot]O(2max)) during a short intermittent session. Eight endurance-trained male adolescents (16 +/- 1 years) performed four field tests until exhaustion: a graded test to determine maximal oxygen uptake ([Vdot]O(2max); 57.4 +/- 6.1 ml x min(-1) . kg(-1)) and maximal aerobic velocity (17.9 +/- 0.4 km x h(-1)), and three intermittent exercises consisting of repeat 30-s runs at 105% of maximal aerobic velocity alternating with 30 s active recovery at 50% (IE(50)), 67% (IE(67)), and 84% (IE(84)) of maximal aerobic velocity. In absolute values, mean t90[Vdot]O(2max) was not significantly different between IE(50) and IE(67), but both values were significantly longer compared with IE(84). When expressed in relative values (as a percentage of time to exhaustion), mean t90[Vdot]O(2max) was significantly higher during IE(67) than during IE(50). Our results show that both 50% and 67% of maximal aerobic velocity of active recovery induced extensive solicitation of the cardiorespiratory system. Our results suggest that the choice of recovery intensity depends on the exercise objective.  相似文献   

Enhancing the MeSH thesaurus to retrieve French online health resources in a quality-controlled gateway     

Douyère M  Soualmia LF  Névéol A  Rogozan A  Dahamna B  Leroy JP  Thirion B  Darmoni SJ 《Health information and libraries journal》2004,21(4):253-261

The amount of health information available on the Internet is considerable. In this context, several health gateways have been developed. Among them, CISMeF (Catalogue and Index of Health Resources in French) was designed to catalogue and index health resources in French. The goal of this article is to describe the various enhancements to the MeSH thesaurus developed by the CISMeF team to adapt this terminology to the broader field of health Internet resources instead of scientific articles for the medline bibliographic database. CISMeF uses two standard tools for organizing information: the MeSH thesaurus and several metadata element sets, in particular the Dublin Core metadata format. The heterogeneity of Internet health resources led the CISMeF team to enhance the MeSH thesaurus with the introduction of two new concepts, respectively, resource types and metaterms. CISMeF resource types are a generalization of the publication types of medline. A resource type describes the nature of the resource and MeSH keyword/qualifier pairs describe the subject of the resource. A metaterm is generally a medical specialty or a biological science, which has semantic links with one or more MeSH keywords, qualifiers and resource types. The CISMeF terminology is exploited for several tasks: resource indexing performed manually, resource categorization performed automatically, visualization and navigation through the concept hierarchies and information retrieval using the Doc'CISMeF search engine. The CISMeF health gateway uses several MeSH thesaurus enhancements to optimize information retrieval, hierarchy navigation and automatic indexing.  相似文献   

Influence of recovery intensity on time spent at maximal oxygen uptake during an intermittent session in young,endurance-trained athletes     

Delphine Thevenet  Erwan Leclair  Magaly Tardieu-Berger  Serge Berthoin  Sophie Regueme  Jacques Prioux 《Journal of sports sciences》2013,31(12):1313-1321

Abstract

In this study, we examined the effects of three recovery intensities on time spent at a high percentage of maximal oxygen uptake (t90[Vdot]O_2max) during a short intermittent session. Eight endurance-trained male adolescents (16 ± 1 years) performed four field tests until exhaustion: a graded test to determine maximal oxygen uptake ([Vdot]O_2max; 57.4 ± 6.1 ml · min^?1 · kg^?1) and maximal aerobic velocity (17.9 ± 0.4 km · h^?1), and three intermittent exercises consisting of repeat 30-s runs at 105% of maximal aerobic velocity alternating with 30 s active recovery at 50% (IE₅₀), 67% (IE₆₇), and 84% (IE₈₄) of maximal aerobic velocity. In absolute values, mean t90[Vdot]O_2max was not significantly different between IE₅₀ and IE₆₇, but both values were significantly longer compared with IE₈₄. When expressed in relative values (as a percentage of time to exhaustion), mean t90[Vdot]O_2max was significantly higher during IE₆₇ than during IE₅₀. Our results show that both 50% and 67% of maximal aerobic velocity of active recovery induced extensive solicitation of the cardiorespiratory system. Our results suggest that the choice of recovery intensity depends on the exercise objective.  相似文献   

Is the Secure Base Phenomenon Evident Here,There, and Anywhere? A Cross‐Cultural Study of Child Behavior and Experts’ Definitions     

German Posada  Ting Lu  Jill Trumbell  Garene Kaloustian  Marcel Trudel  Sandra J. Plata  Paola P. Peña  Jennifer Perez  Susana Tereno  Romain Dugravier  Gabrielle Coppola  Alessandro Constantini  Rosalinda Cassibba  Kiyomi Kondo‐Ikemura  Magaly Nóblega  Ines M. Haya  Claudia Pedraglio  Manuela Verissimo  Antonio J. Santos  Ligia Monteiro  Keng‐Ling Lay 《Child development》2013,84(6):1896-1905

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Equity for English Learners: Evidence from Four Years of California’s Local Control Funding Formula     

Magaly Lavadenz  Elvira G. Armas  Marco A. Murillo  Sylvia Jáuregui Hodge 《Peabody Journal of Education》2019,94(2):176-192

This study examined evidence of equity for English Learners-one of the three targeted student groups–in the early implementation of California’s Local Control Funding Formula (LCFF) across data sets from seven studies. We used social justice inquiry methods and data integration analytic approaches that included purposeful sampling of districts’ Local Control and Accountability Plans (LCAPs), and data integration analyses of interviews with education leaders to examine how equity was advanced for English Learners. Our findings reveal that the quest for equity for English Learners is elusive and requires multilevel efforts to reverse the national, state, and local histories of unequal treatment, deficit orientations, socio-political dynamics, and legacies of unequal funding that still permeate many schools. Further advances in equity will require greater systemic coherence that sharpens the focus on educational outcomes for English Learners. California’s most recent policy shifts–including the passage of Proposition 58 and the English Learner Roadmap–show promise of systemic coherence and alignment to an assets-based approach for English Learners in the state and nation, as tangible evidence of equity in services and outcomes are still works in progress.  相似文献   

CISMeF-patient: a French counterpart to MEDLINEplus     

Stéfan Darmoni  Benoit Thirion  Sylvie Platel  Magaly Douyère  Philippe Mourouga  Jean-Philippe Leroy 《Journal of the Medical Library Association》2002,90(2):248-253

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