Can sit-to-stand muscle power explain the ability to perform functional tasks in adults with severe obesity?     

Samuel T. Orange  Phil Marshall  Leigh A. Madden  Rebecca V. Vince 《Journal of sports sciences》2019,37(11):1227-1234

This study examined the relationship between sit-to-stand (STS) power and physical function in adults with severe obesity. Thirty-eight adults (age: 44 ± 12 years; body mass index [BMI]: 45.2 ± 7.8 kg/m²) completed evaluations of STS power, strength and functional performance. STS power was measured with a wearable inertial sensor, strength was assessed with the isometric mid-thigh pull, and function was measured with the timed up-and-go (TUG), six-minute walk test (6MWT) and 30-s chair STS. Power and strength (normalised to body mass) entered regression models in addition to age, gender, BMI and physical activity (daily step count). Power displayed large univariate associations with TUG (r = 0.50) and 30-s chair STS (r = 0.67), and a moderate association with 6MWT (r = 0.49). Forward stepwise regression revealed that power independently contributed to TUG (β = ?0.40, p = 0.010), 30-s chair STS (β = 0.67, p < 0.001) and 6MWT performance (β = 0.27, p = 0.007). Power also appeared to be a superior determinant of function compared with strength. Power generated via the STS transfer largely underpins the ability to perform functional tasks in adults with severe obesity, although intervention studies are required to investigate a potentially causal relationship.  相似文献   

The biomechanical characteristics of high-performance endurance running     

Stephen J. Preece  Christopher Bramah  Duncan Mason 《European Journal of Sport Science》2019,19(6):784-792

The biomechanical profile of high-level endurance runners may represent a useful model that could be used for developing training programmes designed to improve running style. This study, therefore, sought to compare the biomechanical characteristics of high-performance and recreational runners. Kinematic and kinetic measurements were taken during overground running from a cohort of 14 high-performance (8 male) and 14 recreational (8 male) runners, at four speeds ranging from 3.3 to 5.6?m?s^?1. Two-way ANOVA analysis was then used to explore group and speed effects and principal component analysis used to explore the interdependence of the tested variables. The data showed the high-performance runners to have a gait style characterised by an increased vertical velocity of the centre of mass and a flight time that was 11% longer than the recreational group. The high-performance group were also observed to adopt a forefoot strike pattern, to contact the ground with their foot closer to their body and to have a larger ankle moment. Importantly, although observed group differences were mostly independent of speed, the tested variables showed a high degree of interdependence suggesting an underlying unitary phenomenon. This is the first study to compare high-performance and recreational runners across a full range of kinematic and kinetic variables. The results suggest that high-performance runners maintain stride length with a prolonged aerial phase, rather than by landing with a more extended knee. These findings motivate future intervention studies that should investigate whether recreational runners could benefit from instruction to decrease shank inclination at foot contact.  相似文献   

Knowledge and Forms in Plato's Educational Philosophy     

Mason Marshall 《Educational theory》2020,70(2):215-229

In this essay, Mason Marshall argues that Plato's views on Forms play a central role in his educational philosophy. In response to what certain commentators have recently written, Marshall contends that this interpretation not only is accurate but also is advantageous because of how it can help philosophy of education. He also addresses the view, proposed by one philosopher of education, that Plato believes that the most valuable sort of knowledge cannot be fully expressed in words and that the objects of this knowledge are something other than transcendent Forms. Preferable to that view, Marshall argues, is the idea that Plato wants knowledge of Forms which is nonrepresentational.  相似文献   

A Meta-Analysis of Single-Case Research on Mathematics Word Problem-Solving Interventions for English Learners with Learning Disabilities and Mathematics Difficulties     

Qingli Lei  Rose A. Mason  Yan Ping Xin  John L. Davis  Marie David  Catharine Lory 《Learning disabilities research & practice》2020,35(4):201-217

This single-case meta-analysis is the first to provide a quantitative synthesis of the published literature on mathematics word problem-solving intervention studies for English learners with learning disabilities and mathematics difficulties. A total of ten single-subject studies were included for analysis. The current study investigated the magnitude of the effect of mathematics interventions targeting the improvement of students’ mathematics word problem-solving performance, and analyzed variables that moderated this effect. Results indicate a moderate overall effect size of 0.81 (95% CI [0.71, 0.90]) on word problem-solving performance for English learners with learning disabilities and mathematics difficulties. Moderator variables such as the implementer of the interventions, instructional focus, and word problem-solving content significantly moderated the mathematics intervention effects.  相似文献   

Expressive Vocabulary Predicts Nonverbal Executive Function: A 2-year Longitudinal Study of Deaf and Hearing Children     

Anna Jones  Joanna Atkinson  Chloe Marshall  Nicola Botting  Michelle C. St Clair  Gary Morgan 《Child development》2020,91(2):e400-e414

Numerous studies suggest an association between language and executive function (EF), but evidence of a developmental relationship remains inconclusive. Data were collected from 75 deaf/hard-of-hearing (DHH) children and 82 hearing age-matched controls. Children were 6–11 years old at first time of testing and completed a battery of nonverbal EF tasks and a test of expressive vocabulary. These tasks were completed again 2 years later. Both groups improved their scores on all tasks over this period. DHH children performed significantly less well than hearing peers on some EF tasks and the vocabulary test at both time points. Cross-lagged panel models showed that vocabulary at Time 1 predicted change in EF scores for both DHH and hearing children but not the reverse.  相似文献   

Theory of problem solving: by Ranan B. Banerji. 189 pages,diagrams, 6×9 in. New York,American Elsevier, 1969. Price, $14.50.     

Marshall C.Y. Kuo 《Journal of The Franklin Institute》1971

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Find the Message Puzzle     

Julie Mason 《英语辅导》2017,(2)

Instructions:Answer the clues (information which helps you find the answer) from 1-20.Put a line through each answer-the first one is done for you.In the boxes which you have not put a line through,you will find a message.What is the message?  相似文献   

Varieties of Neo-liberalism: a Foucaultian perspective¹     

James D.  Marshall 《Educational Philosophy and Theory》2001,33(3-4):293-304

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Counselling Maori people in New Zealand [Aotearoa]     

Mason Durie  Gary Hermansson 《International journal for the advancement of counseling》1990,13(2):107-118

This paper is an edited version of a seminal address given to a national association of counselors in New Zealand by a senior Maori figure professionally involved in the helping field. It focuses on a particular indigenous ethnic minority in terms of appropriate counseling, but has relevance for other traditionally-based cultures. After some attention to the societal context, the address considers major directions of western thought and how these have been reflected in counseling. It then suggests that these are largely inappropriate for Maori people, elaborating contrasts. Three major dimensions of Maori culture relevant to counselling are presented and developed. Finally, attention is given to ways in which counseling in New Zealand might be better developed along bicultural lines.This paper is based on an address given by Mason Durie (of the Rangitane and Raukawa Maori tribes) to a recent New Zealand Counseling and Guidance Association's Annual Conference at Palmerston North, New Zealand. The address was transcribed from tape and edited for publication by Gary Hermansson.  相似文献   

Pygmalion and the student: age and classroom differences in children's awareness of teacher expectations   总被引：3，自引：0，他引：3  

R S Weinstein  H H Marshall  L Sharp  M Botkin 《Child development》1987,58(4):1079-1093

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