Routledge international handbook of outdoor studies     

Jelena Farkic  Chris Mackie 《Journal of Adventure Education & Outdoor Learning》2018,18(1):96-98

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Understanding the presence of mental fatigue in English academy soccer players     

Chris J. Thompson  Mark Noon  Chris Towlson  John Perry  Aaron J. Coutts  Liam D. Harper 《Journal of sports sciences》2020,38(13):1524-1530

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Social epistemology: what’s in a name?     

Dragos  Chris 《Metascience》2020,29(3):399-401

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Classification of Physical Activity Cut-Points and the Estimation of Energy Expenditure During Walking Using the GT3X+ Accelerometer in Overweight and Obese Adults     

Christopher C. F. Howe  Hannah J. Moir  Chris Easton 《Measurement in physical education and exercise science》2017,21(3):127-133

This study establishes tri-axial activity count (AC) cut-points for the GT3X+ accelerometer to classify physical activity intensity in overweight and obese adults. Further, we examined the accuracy of established and novel energy expenditure (EE) prediction equations based on AC and other metrics. Part 1: Twenty overweight or obese adults completed a 30 minute incremental treadmill walking protocol. Heart rate (HR), EE, and AC were measured using the GT3X+ accelerometer. Part 2: Ten overweight and obese adults conducted a self-paced external walk during which EE, AC, and HR were measured. Established equations (Freedson et al., 1998; Sasaki et al., 2011) overestimated EE by 40% and 31%, respectively (p < .01). Novel gender-specific prediction equations provided good estimates of EE during treadmill and outdoor walking (standard error of the estimate = .91 and .65, respectively). We propose new cut-points and prediction equations to estimate EE using the GT3X+ tri-axial accelerometer in overweight and obese adults.  相似文献   

Assessment of the risk and biomechanical consequences of lateral epicondylalgia by estimating wrist and finger muscle capacities in tennis players     

Laurent Vigouroux  Benjamin Goislard de Monsabert  Chris Hayot  Philippe Androuet  Éric Berton 《Sports biomechanics / International Society of Biomechanics in Sports》2017,16(4):434-451

Previous studies suggested that a pronounced weakness of the extensor muscles relative to the flexor muscles could increase the risk of occurrence of lateral epicondylalgia. This study investigates this hypothesis by estimating the ratio of extensor to flexor muscle capacities among healthy non-players (n = 10), healthy tennis players (n = 20), symptomatic players (n = 6), and players who have recovered from lateral epicondylalgia (n = 6). Maximum net joint moments in flexion or extension were measured during seven tasks involving the voluntary contraction of wrist and fingers. Using these data, the muscle capacities of the main muscle groups of the hand (wrist flexors, wrist extensors, finger flexors, finger extensors, and intrinsic muscles) were estimated using a musculoskeletal model. These capacities were then used to compute the extensor/flexor capacity ratios about the wrist and the finger joints. Compared to healthy non-players, healthy players presented higher extensor muscle capacities and greater capacity ratios showing that playing tennis generates specific adaptations of muscle capacities. Interestingly, symptomatic players, similar to those of non-players, showed more imbalanced ratios than healthy players. These results confirm that the ratio of extensor/flexor muscle capacities seems to be associated with lateral epicondylalgia and can be further used to understand its incidence and consequences.  相似文献   

Hughes,Hawks, and Hays: The Monumental Censorship Battle Over Scarface (1932)          下载免费PDF全文

Chris Yogerst 《Journal of American culture (Malden, Mass. : 2003)》2017,40(2):134-144

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Andrew Jackson,Southerner Mark R. Cheathem. Baton Rouge: Louisiana State University Press, 2013.          下载免费PDF全文

Chris Richardson 《Journal of American culture (Malden, Mass. : 2003)》2015,38(3):278-279

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Language and reading development in children learning English as an additional language in primary school in England     

Chris Dixon  Jenny Thomson  Silke Fricke 《Journal of Research in Reading》2020,43(3):309-328

Children learning English as an additional language (EAL) are a growing population of learners in English primary schools. These children begin school with differing levels of English language proficiency and tend to underperform in relation to their non-EAL peers on measures of English oral language and reading. However, little work has examined the developmental trajectories of these skills in EAL learners in England. EAL learners and 33 non-EAL peers in Year 4 (age 8–9 years) were assessed at three time points over 18 months on measures of oral language (vocabulary, grammar and listening comprehension), phonological processing (spoonerisms and rapid automatised naming) and reading skills (single-word decoding and passage reading). At t1, EAL learners scored significantly lower than non-EAL peers in receptive and expressive vocabulary (breadth but not depth), spoonerisms and passage reading accuracy. Contrary to previous research, no significant group differences were found in listening or reading comprehension skills. With the exception of passage reading accuracy, there was no evidence for convergence or divergence between the groups in rate of progress over time. After three years of English-medium classroom instruction, EAL learners continue to underperform relative to their non-EAL peers in breadth of English vocabulary knowledge. This discrepancy in vocabulary knowledge does not appear to narrow as a result of regular classroom instruction in the run up to the final stages of primary school, pinpointing vocabulary as a key target for intervention.  相似文献   

Do the arts make you happy? A quantile regression approach     

Chris Hand 《Journal of Cultural Economics》2018,42(2):271-286

Compared to other leisure time activities, the effect of arts attendance on happiness has received less attention and studies of related topics have produced mixed results, identifying either no effect or very small effects. We investigate this issue using a large (N = 7753) sample from the UK. In contrast to earlier studies, quantile regression is used to allow the relationship between arts attendance and other controls and happiness to vary across different levels of happiness. The relationship found in prior studies is confirmed, but the quantile regression results show that the nature of the relationship varies across the distribution of the happiness variable. A significant relationship is found at the lower quartile, and a moderate relationship (significant at the 10% level) is found at the median level.  相似文献   

Burnout in elite rugby: relationships with basic psychological needs fulfilment   总被引：1，自引：1，他引：0  

Hodge K  Lonsdale C  Ng JY 《Journal of sports sciences》2008,26(8):835-844

In this study, we examined the utility of self-determination theory (Ryan & Deci, 2002) as a framework for understanding the antecedents of athlete burnout in elite New Zealand rugby union players (n=133). Perceptions of competence, autonomy, and relatedness (i.e. basic psychological needs) were hypothesized to be negatively related to burnout scores, while players classified as "high-burnouts" were predicted to report lower needs fulfilment than players with low burnout. Canonical correlation analysis indicated that relatedness was a low to moderate predictor of burnout, but players' competence and autonomy accounted for substantial portions of variance in two athlete burnout symptoms: reduced accomplishment and sport devaluation. The proportion of variance accounted for in the exhaustion dimension of athlete burnout was not substantive. Multivariate analysis of variance supported these results, as "high-burnout" players had lower competence and autonomy scores than athletes reporting low burnout symptoms. The two groups did not report significantly different relatedness scores. Implications of these results for researchers and practitioners are discussed.  相似文献