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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
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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
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Mick Coleman Bryan E. Robinson Bobbie H. Rowland 《Early Childhood Education Journal》1991,18(4):13-17
During the past decade, parents and educators have increasingly expressed concern over the potential safety and developmental risks associated with children in self-care, or the care of another child (Garbarino, 1984; Harris, Kagay, & Ross, 1987; Robinson, Rowland, & Coleman, 1986; 1989; Zigler & Ennis, 1988). One result has been a growing interest in school-age child care (SACC) programs.Mick Coleman is Assistant Professor, Child and Family Development, and Extension Human Development Specialist, University of Georgia, Hoke Smith Annex, Athens, Ga. Bryan E. Robinson and Bobbie H. Rowland are both Professor of Human Services, University of North Carolina, Charlotte, NC 相似文献
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