排序方式： 共有36条查询结果，搜索用时 265 毫秒
1.
Joshua T. Weinhandl Bobbie S. Irmischer Zachary A. Sievert Kevin C. Fontenot 《Journal of sports sciences》2017,35(2):166-174
Limb dominance theory suggests that females tend to be more one-leg dominant and exhibit greater kinematic and kinetic leg asymmetries than their male counterparts, contributing to the increased risk of anterior cruciate ligament injury among female athletes. Thus, the purpose of this study was to examine the influences of sex and limb dominance on lower extremity joint mechanics during unilateral land-and-cut manoeuvres. Twenty-one women and 21 men completed land-and-cut manoeuvres on their dominant limb as well as their nondominant limb. Three-dimensional kinematics and kinetics were calculated bilaterally for the entire stance phase of the manoeuvre. Women performed land-and-cut manoeuvres with altered hip motions and loads as well as greater knee abduction at touchdown compared to men. Dominant limb land-and-cut manoeuvres where characterised by decreased hip flexion at touchdown as well as decreased hip flexion and adduction range of motion compared to nondominant land-and-cuts regardless of sex. The observed sex differences are consistent with previous research regarding mechanisms underlying the sex disparity in anterior cruciate ligament injury rates. However, observed differences regarding limb dominances appear somewhat arbitrary and did not suggest that the dominant or nondominant limb would be at increased risk of anterior cruciate ligament injury. 相似文献
2.
3.
4.
5.
6.
Bobbie A. Henderson 《Early Childhood Education Journal》1983,11(1):10-11
CIA does not stand for what you ordinarily would think, The Central Intelligence Agency! These initials can be quite meaningful to caregivers and definitely beneficial to school-agers who are involved in before and after school care. CIA—Creativity, Imagination and Anticipation! These are key words and functions which can enhance a school-age program. 相似文献
7.
8.
9.
10.
Scientific knowledge, including the critical evaluation and comprehension of empirical articles, is a key skill valued by most undergraduate institutions for students within the sciences. Students often find it difficult to not only summarize empirical journal articles, but moreover to successfully grasp the quality and rigor of investigation behind the source. In this paper, we use instructional scaffolds (reading worksheets, RWs, with tutorials) to aid students in being able to comprehend, and ultimately transfer, the skills necessary in critically evaluating primary sources of research. We assess students’ learning of these skills on a multiple-choice assessment of Journal Article Comprehension (JAC). Students in experimental classes, who received instructional scaffolds, improved on the JAC post-test compared with students in control classes. This result shows that students are acquiring fundamental research skills such as understanding the components of research articles. We also showed that improvement on the JAC post-test for the experimental class extended to a written summary test. This result suggests that students in the experimental group are developing discipline-specific science process skills that allow them to apply JAC skills to a near-transfer task of writing a summary. 相似文献