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排序方式: 共有4635条查询结果,搜索用时 15 毫秒
911.
Joanne DiFrancisco-Donoghue William G. Werner Peter C. Douris Hallie Zwibel 《运动与健康科学(英文)》2022,11(6):725
BackgroundEsports players, like traditional athletes, practice for long hours and, thus, are vulnerable to the negative health effects of prolonged sitting. There is a lack of research on the physical activity and the health ramifications of prolonged sitting by competitive players. The purpose of this study was to investigate activity levels, body mass index (BMI), and body composition in collegiate esports players as compared to age-matched controls.MethodsTwenty-four male collegiate esports players and non-esports players between 18 and 25 years of age signed a written consent to participate. Physical activity was examined using daily activity (step count) with a wrist-worn activity tracker. A questionnaire assessing physical activity was also administered. Secondary outcomes included body-fat percentage, lean-body mass, BMI, and bone mineral content measured using dual X-ray absorptiometry.ResultsThe step count in the esports players was significantly lower than the age-matched controls (6040.2 ± 3028.6 vs. 12843.8 ± 5661.1; p = 0.004). Esports players exhibited greater body-fat percentage (p = 0.05), less lean body mass (p = 0.003), and less bone mineral content (p = 0.03), despite no difference in BMI between the esports and non-esports players.ConclusionAs compared to non-esports players, collegiate esports players were significantly less active and had a higher body-fat percentage, with lower lean body mass and bone mineral content. The BMIs showed no difference between the 2 groups. Esports athletes displayed significantly less activity and poor body composition, which are all correlated with potential health issues and risk of injury. BMI did not capture this difference and should not be considered as an accurate measure of health in competitive esports players. 相似文献
912.
Science & Education - 相似文献
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914.
Peter Gurney 《教育心理学》1987,7(2):91-102
Abstract The experiment was designed to monitor the effects of behavioural techniques upon the frequency of positive self‐referent verbal statements (PSRVS) and on overt behaviours considered to be related to global self‐esteem. Fourteen maladjusted boys aged 10‐12 years were randomly assigned to an experimental and control group to monitor the effect of procedures to enhance the frequency of PSRVS. Both groups experienced extraction procedures and rewards but only the experimental group received modelling, instruction and contingent rewards. An ABCDA design demonstrated a very substantial and significant increase in PSRVS within the experimental group over the treatment period and provided some evidence for a generalisation effect on return to baseline and in the follow‐up period. A post‐experiment analysis of teacher ratings of the pupils on the Behaviour Rating Form (BRF) showed a significant difference in favour of the experimental group. 相似文献
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916.
Peter J. Dirr 《Innovative Higher Education》1985,9(2):92-98
Because of new applications of telecommunications, especially television, adults today have increasing flexibility in taking advantage of college courses in the privacy and convenience of their homes. The quality of courses has improved greatly in the last few years, and they are available in a variety of subject areas. Today's television courses are carefully designed and produced by teams of leading scholars and producers. Most of the country's public televison stations broadcast one or more television courses, each semester. In addition, many are broadcast on local cable channels. Most of the students for television courses are older than traditional college students, female and employed. They view the television courses at home. In the future, the personal computer can be expected to add new dimensions and flexibility to homebased college education. 相似文献
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Peter Woods 《Educational studies》1993,19(3):323-338
D.H. Hargreaves's “traumatic theory of aesthetic learning” is reviewed in the light of research on educational events in the areas of creative writing and drama. If the full educational benefits of conversive drama are to be realised, they have to be seen within the context of more gradual cumulation of skills and knowledge. Before the trauma, students are prepared by confidence‐building, having their sensitivities sharpened, abilities encouraged, and acquiring control and power of expression. During and after the trauma there is considerable personal development, students discovering new things about themselves, maturing, and in some cases being transformed. They acquire more of the art of learning, involving skills of both expression and appreciation. There is also notable social development, resulting in the experience of communitas, wherein participants rise above institutional structures and statuses and develop exceptional community spirit. Above all, conversive trauma excites the emotions, at first in uncontrollable ways, but the educational experience involves the individual coming to terms with, and understanding, the disturbance. A theory of aesthetic learning is advanced involving a constructivist teaching style, charismatic personal qualities, naturalistic context, co‐operation, appropriate content, and grounded and open enquiry. 相似文献