Journal of Sports Sciences: past,present and future     

A. Mark Williams 《Journal of sports sciences》2017,35(13):1229-1230

  相似文献   

Super Bowl Sunday: A National Holiday and a Global Curiosity     

Peter Hopsicker  Mark Dyreson 《国际体育史杂志》2017,34(1-2):1-6

  相似文献   

Iron roofing     

R. Turner 《Journal of The Franklin Institute》1850,49(1):10-11

  相似文献   

Memory drum theory's C movement: revelations from Franklin Henry     

Fischman MG  Christina RW  Anson JG 《Research quarterly for exercise and sport》2008,79(3):312-318

  相似文献   

The role of effort in moderating the anxiety-performance relationship: Testing the prediction of processing efficiency theory in simulated rally driving     

Wilson M  Smith NC  Chattington M  Ford M  Marple-Horvat DE 《Journal of sports sciences》2006,24(11):1223-1233

We tested some of the key predictions of processing efficiency theory using a simulated rally driving task. Two groups of participants were classified as either dispositionally high or low anxious based on trait anxiety scores and trained on a simulated driving task. Participants then raced individually on two similar courses under counterbalanced experimental conditions designed to manipulate the level of anxiety experienced. The effort exerted on the driving tasks was assessed though self-report (RSME), psychophysiological measures (pupil dilation) and visual gaze data. Efficiency was measured in terms of efficiency of visual processing (search rate) and driving control (variability of wheel and accelerator pedal) indices. Driving performance was measured as the time taken to complete the course. As predicted, increased anxiety had a negative effect on processing efficiency as indexed by the self-report, pupillary response and variability of gaze data. Predicted differences due to dispositional levels of anxiety were also found in the driving control and effort data. Although both groups of drivers performed worse under the threatening condition, the performance of the high trait anxious individuals was affected to a greater extent by the anxiety manipulation than the performance of the low trait anxious drivers. The findings suggest that processing efficiency theory holds promise as a theoretical framework for examining the relationship between anxiety and performance in sport.  相似文献   

The relationship between shoulder alignment and elbow joint angle in cricket fast-medium bowlers     

Roca M  Elliott B  Alderson J  Foster D 《Journal of sports sciences》2006,24(11):1127-1135

The aim of this study was to examine the relationship between shoulder alignment and elbow angle during the delivery action of fast-medium bowlers. The elbow and upper trunk alignment were recorded for 13 high-performance bowlers (mean age 20 years) using a 12-camera Vicon motion analysis system operating at 250 Hz. The three highest velocity trials for "good" and "short" length deliveries were analysed. Results showed that bowlers with a more front-on shoulder alignment at back-foot impact and when the upper arm was horizontal to the ground experienced a significantly greater elbow flexion--extension range when compared with those who had a more side-on orientation at the same point in the delivery action. Bowlers with greater shoulder counter-rotation also recorded higher elbow flexion and subsequently extension during the period from upper arm horizontal to ball release. Shoulder alignment and elbow angles were similar for "short" and "good" length deliveries. It was concluded that bowlers with a more front-on shoulder orientation at back-foot impact demonstrated a higher elbow extension from upper arm horizontal to ball release and are therefore more likely to infringe International Cricket Council elbow tolerance levels, compared with those who adopt a more side-on shoulder orientation at back-foot impact.  相似文献   

Extending validity evidence for multidimensional measures of coaching competency     

Myers ND  Wolfe EW  Maier KS  Feltz DL  Reckase MD 《Research quarterly for exercise and sport》2006,77(4):451-463

This study extended validity evidence for multidimensional measures of coaching competency derived from the Coaching Competency Scale (CCS; Myers, Feltz, Maier, Wolfe, & Reckase, 2006) by examining use of the original rating scale structure and testing how measures related to satisfaction with the head coach within teams and between teams. Motivation, game strategy, technique, and character building comprised the dimensions of coaching competency. Data were collected from athletes (N = 585) nested within intercollegiate men's (g = 8) and women's (g = 13) soccer and women's ice hockey (g = 11) teams (G = 32). Validity concerns were observed for the original rating scale structure and the predicted positive relationship between motivation competency and satisfaction with the coach between teams. Validity evidence was offered for a condensed post hoc rating scale and the predicted relationship between motivation competency and satisfaction with the coach within teams.  相似文献   

网球运动中的科技产品     

Mark Kovacs  张烨 《中国体育教练员》2009,17(2)

科技能帮助运动员迅速提升训练水平.在网球运动中.教练员和相关工作人员(医务、力量师、体能师和理疗师)将一些新技术运用于训练、测试和监测中,优化运动员技术,降低运动损伤的发生.心率表、3D加速计、水合测试设备和雷达枪是网球运动员训练和监控的主要设备.  相似文献   

Motivational orientations,views about the purpose of education,and intellectual styles     

Mark D. Kroll 《Psychology in the schools》1988,25(3):338-343

College students' motivational orientations toward learning and their views concerning the purpose of education were examined in relation to various intellectual styles. Task orientation (wherein one's goal is to increase understanding or mastery) was found to be positively associated with Tolerance for Ambiguity, Thoughtfulness, and Open-Mindedness. Ego orientation (wherein one's goal is to outperform others) was negatively associated with Tolerance for Ambiguity, Thoughtfulness, Complexity, and Individualism. Moreover, the views that school's purpose should be to promote understanding and achievement motivation tended to be positively associated with these traits, but the view that school should promote one's wealth and status was not associated with these traits.  相似文献   

The question of the comparability of the WISC and WISC-R: Review of the research and implications for school psychologists     

Mark E. Swerdlik 《Psychology in the schools》1977,14(3):260-270

The paper reviews WISC/WISC-R comparison studies which have been conducted with a wide variety of samples. Significant WISC/WISC-R IQ score differences have been reported with the WISC-R yielding consistently lower scores of approximately 5-8 IQ points for the three major scales. Several studies do report variable WISC/WISC-R differences for various ages, races, and ability levels. These results have implications for practicing school psychologists. Caution is advised in the interpretation of a WISC/WISC-R difference, as a discrepancy of one SD may not be meaningful. Many students who scored in the borderline classification range on the WISC and who are currently being readministered the WISC-R are scoring in the mentally impaired classification range. This does not necessarily reflect negatively on the validity of the WISC-R, but does document the need to keep intelligence tests up to date. There is a continuing need to exercise caution in the use of individual intelligence tests and to utilize data in addition to WISC-R scores in order to make special education placement decisions.  相似文献