Fitness,physical activity and academic achievement in overweight/obese children     

Cristina Cadenas-Sanchez  Jairo H. Migueles  Irene Esteban-Cornejo  Jose Mora-Gonzalez  Pontus Henriksson  María Rodriguez-Ayllon 《Journal of sports sciences》2020,38(7):731-740

ABSTRACT

The aim of this study was to examine the associations of fitness and physical activity with academic achievement in children with overweight/obesity. A total of 106 (10.0 ± 1.1y, 61 boys) children participated. The fitness components were assessed by field and laboratory-based tests. Physical activity was measured via accelerometry. The academic achievement was assessed by a standardised test and school-grades. Field-based cardiorespiratory fitness was associated with language skills (ß-standardised- ranging from 0.281 to 0.365, p < 0.01). The field-based muscular strength was associated with grade point average, natural and social sciences, and foreign language (ß = 0.280–0.326, all p ≤ 0.01). Speed-agility was associated with some language-related skills (ß = 0.325–0.393, all p ≤ 0.01). The laboratory-based muscular strength also showed an association with mathematics skills (ß = 0.251–0.306, all p ≤ 0.01). Physical activity did not show significant association with academic achievement (p > 0.01). Overall, the significant associations observed for muscular strength and speed/agility were attenuated and disappeared in many cases after additional adjustments for body mass index and cardiorespiratory fitness, indicating that these associations are inter-dependent. Our study contributes by indicating that other fitness components apart from cardiorespiratory fitness, such as muscular strength and speed-agility, are positively associated with academic achievement. However, these associations appear to be dependent on body mass index and cardiorespiratory fitness.  相似文献   

The Cost-effectiveness of Preventive Conservation Actions     

Stefan Michalski  Irene Karsten 《文物保护研究》2018,63(5):187-194

ABSTRACT

Two historic house museums, a municipal art gallery, and a provincial archive have had comprehensive risk and option assessments done by the Canadian Conservation Institute. For each institution, an average of 60 options addressing 40 risks was analyzed in terms of risk reduction, cost, and cost-effectiveness. A meta-analysis found that cost-effectiveness follows a strong economy of scale within each institution. By estimating valuation of each collection, cost-effectiveness was converted into benefit–cost ratio of dollar spent per dollar value saved and was found not to follow an economy of scale between small and large institutions. Optimization software was applied to see if precise maximization of risk reduction gave significantly different recommendations than those in the original reports which relied on the Pareto rule of addressing the largest risks first.  相似文献   

Seeing the Big Picture: Sustaining Success in Liaison Services     

Roy E. Brown  John Cyrus  Irene Lubker  Karen Gau  Jennifer Opoku  Barbara Wright 《Medical reference services quarterly》2017,36(3):240-252

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Acquisition of the same/different concept by an African Grey parrot (Psittacus erithacus): Learning with respect to categories of color,shape, and material     

Irene M. Pepperberg 《Learning & behavior》1987,15(4):423-432

An African Grey parrot, previously taught to use vocal English labels to discriminate more than 80 different objects and to respond to questions concerning categorical concepts of color and shape, was trained and tested on relational concepts ofsame anddifferent. The subject, Alex, replied with the correct English categorical label (“color,” “shape,” or “mah-mah” [matter]) when asked “What’s same?” or “What’s different?” about pairs of objects that varied with respect to any combination of attributes. His accuracy was 69.7%–76.6% for pairs of familiar objects not used in training and 82.3%–85% for pairs involving objects whose combinations of colors, shapes, and materials were unfamiliar. Additional trials demonstrated that his responses were based upon the question being posed as well as the attributes of the objects. These findings are discussed in terms of his comprehension of the categories of color, shape, and material and as evidence of his competence in an exceptional (non-species-specific) communication code.  相似文献   

Feather‐legged     

Irene Wray 《Communication quarterly》2013,61(3)

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同学聚会,你参加吗?     

Irene Zutell  Cass 《英语辅导》2013,(1):11-13

"同学聚会"——多么令人兴奋的字眼,有多少人曾经为了那个可以一叙旧情的日子高兴得睡不着觉?但是,也有越来越多的人表示,离校园生活越远,"同学聚会"也越发变味,因为聚会变得越来越像是一个炫富、晒幸福、比成就的场合,日子过得滋润的人会  相似文献   

Ikastola in the twentieth century: an alternative for schooling in the Basque Country     

Irene López‐Goñi 《History of education》2013,42(6):661-676

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Predictive value of coaches’ early technical and tactical notational analyses on long-term success of female handball players     

Jörg Schorer  Irene Faber  Till Koopmann  Dirk Büsch  Joseph Baker 《Journal of sports sciences》2020,38(19):2208-2214

ABSTRACT

Despite the importance of technique and tactics for athlete performance, there has been surprisingly little research on the value of these skills in talent identification and development. This study investigated the relationship between coaches’ early notational analyses of female youth handball players and the long-term success of these athletes. Participants included sixty-eight female handball players involved in a talent selection camp in Germany when they were between 12 and 14 years of age (mean = 14.42, SD = 0.42). All subsequently ended up as non-, semi- or professional adult players. During the initial selection camp, participants were evaluated on a range of quantitative and qualitative measures of technical and tactical skill. Results indicated significant differences between the groups, but only for the number of actions taken, not for the quality of those actions. While this seems counterintuitive, it may reflect the likelihood that more skilled and/or talented players take more actions. Further work is necessary to explore the validity and implications of these findings.  相似文献   

Cardiorespiratory fitness and arm bone mineral health in young males with spinal cord injury: the mediator role of lean mass     

Irene Rodríguez-Gómez  Soraya Martín-Manjarrés  María Martín-García  Sara Vila-Maldonado  Ángel Gil-Agudo  Luis M. Alegre 《Journal of sports sciences》2019,37(7):717-725

Spinal cord injury (SCI) derives in loss of bone mineral content (BMC) and bone mineral density (BMD). However, physical activity is an important determinant in bone mass acquisition, which is partially mediated through the lean mass (LM). The aim was to examine the effect of cardiorespiratory fitness (CRF) on BMD and BMC arms of adult males with SCI and able-bodied controls using the arm LM as a mediator variable. Thirty able-bodied men and thirty men with SCI participated. BMC and BMD were analysed by DXA, and indirect calorimetry was used to calculate VO_2peak during a progressive arm-cranking test. When groups were divided by the amount of LM, the subgroup with highest LM had significantly higher arm BMC compared to the lowest LM subgroup (p ≤ 0.05) in both SCI and able-bodied groups. Moreover, same differences were found when confidence intervals were analysed. Only in the SCI group, arm LM mediated the relationship between bone mass and CRF at 30.9%, as indicated by the Sobel test (z = 2.17 and z = 2.04 for BMC and BMD, respectively). In conclusion, LM mediates the indirect association between CRF and bone health, specifically in the arms. This finding highlights the importance of having an adequate CRF for the maintenance of good bone health in SCI men.  相似文献   

Attracting and retraining Hispanics in math and science teacher education     

Roy C. Rodriguez  Irene V. Rodriguez 《The Teacher Educator》2013,48(4):9-15

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