Repeatability of three-dimensional thorax and pelvis kinematics in the golf swing measured using a field-based motion capture system   总被引：1，自引：0，他引：1  

Evans K  Horan SA  Neal RJ  Barrett RS  Mills PM 《Sports biomechanics / International Society of Biomechanics in Sports》2012,11(2):262-272

Field-based methods of evaluating three-dimensional (3D) swing kinematics offer coaches and researchers the opportunity to assess golfers in context-specific environments. The purpose of this study was to establish the inter-trial, between-tester, between-location, and between-day repeatability of thorax and pelvis kinematics during the downswing using an electromagnetic motion capture system. Two experienced testers measured swing kinematics in 20 golfers (handicap < or =14 strokes) on consecutive days in an indoor and outdoor location. Participants performed five swings with each of two clubs (five-iron and driver) at each test condition. Repeatability of 3D kinematic data was evaluated by computing the coefficient of multiple determination (CMD) and the systematic error (SE). With the exception of pelvis forward bend for between-day and between-tester conditions, CMDs exceeded 0.854 for all variables, indicating high levels of overall waveform repeatability across conditions. When repeatability was compared across conditions using MANOVA, the lowest CMDs and highest SEs were found for the between-tester and between-day conditions. The highest CMDs were for the inter-trial and between-location conditions. The absence of significant differences in CMDs between these two conditions supports this method of analysing pelvis and thorax kinematics in different environmental settings without unduly affecting repeatability.  相似文献   

Automatic Item Generation: A More Efficient Process for Developing Mathematics Achievement Items?          下载免费PDF全文

Susan E. Embretson  Neal M. Kingston 《Journal of Educational Measurement》2018,55(1):112-131

The continual supply of new items is crucial to maintaining quality for many tests. Automatic item generation (AIG) has the potential to rapidly increase the number of items that are available. However, the efficiency of AIG will be mitigated if the generated items must be submitted to traditional, time‐consuming review processes. In two studies, generated mathematics achievement items were subjected to multiple stages of qualitative review for measuring the intended skills, followed by empirical tryout in operational testing. High rates of success were found. Further, items generated from the same item structure had predictable psychometric properties. Thus, the feasibility of a more limited and expedient review processes was supported. Additionally, positive results were obtained on measuring the same skills from item structures with reduced cognitive complexity.  相似文献   

Commitment and Relatedness: How College Students Use Religious Coping to Manage Anxiety     

Neal Schindler  Keely J. Hope 《Journal of College Counseling》2016,19(2):180-192

Anxiety is a common symptom among college counseling clients. Perhaps because of the unique developmental tasks they face, many later adolescents (ages 18–24 years) use religious coping to manage anxiety. Many counselors are uncertain about how to address religious themes in therapy, if at all. However, most clients of faith do not want counselors to ignore their religious beliefs. In fact, later adolescents may use faith‐based coping mechanisms to navigate the challenges of their developmental stage.  相似文献   

Support leg action can contribute to maximal instep soccer kick performance: an intervention study     

Simon Augustus  Peter Mundy  Neal Smith 《Journal of sports sciences》2017,35(1):89-98

This investigation assessed whether a Technique Refinement Intervention designed to produce pronounced vertical hip displacement during the kicking stride could improve maximal instep kick performance. Nine skilled players (age 23.7 ± 3.8 years, height 1.82 ± 0.06 m, body mass 78.5 ± 6.1 kg, experience 14.7 ± 3.8 years; mean ± SD) performed 10 kicking trials prior to (NORM) and following the intervention (INT). Ground reaction force (1000 Hz) and three-dimensional motion analysis (250 Hz) data were used to calculate lower limb kinetic and kinematic variables. Paired t-tests and statistical parametric mapping examined differences between the two kicking techniques across the entire kicking motion. Peak ball velocities (26.3 ± 2.1 m · s^?1 vs 25.1 ± 1.5 m · s^?1) and vertical displacements of the kicking leg hip joint centre (0.041 ± 0.012 m vs 0.028 ± 0.011 m) were significantly larger (P < 0.025) when performed following INT. Further, various significant changes in support and kicking leg dynamics contributed to a significantly faster kicking knee extension angular velocity through ball contact following INT (70–100% of total kicking motion, P < 0.003). Maximal instep kick performance was enhanced following INT, and the mechanisms presented are indicative of greater passive power flow to the kicking limb during the kicking stride.  相似文献   

Choosing and using methods of teaching     

Neal Whitman 《Performance Improvement》1981,20(5):16-19

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Recent progress in the plastic methods of structural analysis     

P.S. Symonds  B.G. Neal 《Journal of The Franklin Institute》1951,252(5):383-407

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Disney's The Princess and the Frog: The Pride,the Pressure,and the Politics of Being a First     

Neal A. Lester 《Journal of American culture (Malden, Mass. : 2003)》2010,33(4):294-308

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Know your place? Evaluating the therapeutic benefits of engagement with historic landscapes     

Cath Neal 《Cultural Trends》2015,24(2):133-142

This paper emphasises the restorative power of engagement with natural/cultural environments by exploring a body of work that identifies the positive impact of the historic environment on the health and well-being of community archaeology participants. Increasing importance has been ascribed to the role of landscape in public health research and to the environmental factors, which contribute to enhanced quality of life. In reviewing the ways that community archaeology projects are evaluated, and in summarising current practice, we observe that the evidence produced is often anecdotal. However, it is possible to increase robust therapeutic evaluation in ways that might be expected from other disciplinary perspectives and to draw on recent work in the role of the arts in health. This paper highlights that many of those currently engaged in community archaeology are self-selecting, and represent only a small subset of society. The narrow scope of engagement is borne out by Heritage Lottery Fund-commissioned research which found that, whilst volunteering has a significant positive impact on participants, they tend to be white, well-educated and live in the most affluent areas. If historic environment practitioners are to claim therapeutic benefits from their work, then the issue of inequity of access to health benefits is a significant concern for the profession. It is not just a matter of social justice but a concern for the arts and humanities sector, which is currently required to justify its public value [Bate, J. (2011). Public value of the humanities. London: Bloomsbury Academic].  相似文献   

Trauma-informed interventions for counselling sex trafficking survivors     

Litam  Stacey Diane A.  Neal  Sheerah 《International journal for the advancement of counseling》2022,44(2):243-262

International Journal for the Advancement of Counselling - Human trafficking represents the fastest growing form of transnational crime and remains the third largest criminal enterprise following...  相似文献   

Children's distributive justice judgments: aversive racism in Euro-American children?     

McGillicuddy-De Lisi AV  Daly M  Neal A 《Child development》2006,77(4):1063-1080

Euro-American 2nd- and 4th-grade children (Ms=7.67 and 9.82 years) heard stories about Black and White characters who produced artwork yielding a windfall reward. Children allocated rewards to characters, justified their allocations, and judged the fairness of patterns representing different justice principles. Older children allocated more money to Black than White productive characters and to White than Black needy characters, consistent with predictions from aversive racism theory. Rationales most often relied on equality principles; older children gave more equity-based justifications for Black than for White characters. Fairness ratings of patterns representing 4 justice principles revealed effects for age and character race. Implications for understanding the developmental course of moral judgments as they apply to racial differences are discussed.  相似文献