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991.
The aim of the present study was to examine the effect of fatigue (physiological, mechanical, and muscular parameters) induced by a sprint simulation on kinematic parameters (cycle, phases, and joints angles) of the double pole technique. Eight elite skiers were tested for knee extensor strength and upper body power both before and after a three-bout simulation of sprint racing. They were video analyzed during the final part of the test track of bouts 1 and 3 using a digital camera. Results showed that skiers were in a fatigue state (decrease of the knee extensors voluntary force (-10.4+/-10.4%) and upper body power output (-11.1+/-8.7%) at the end of the sprint. During bout 3, the final spurt and cycle velocities decreased significantly (-7.5+/-12.3%; -13.2+/-9.5%; both p<.05). Angular patterns were only slightly modified between bouts 1 and 3 with trunk, hip, and pole angles being significantly greater for the third bout. The decrease of hip and trunk flexion and the lower inclination of the pole during the poling phase suggested a reduced effectiveness of the force application which could lead to a decrease in the cycle velocity. 相似文献
992.
David M. Kaplan Michael M. Kocet R. Rocco Cottone Harriet L. Glosoff Judith G. Miranti E. Christine Moll John W. Bloom Tammy B. Bringaze Barbara Herlihy Courtland C. Lee Vilia M. Tarvydas 《Journal of counseling and development : JCD》2009,87(2):241-256
The first major revision of the ACA Code of Ethics in a decade occurred in late 2005, with the updated edition containing important new mandates and imperatives. This article provides interviews with members of the Ethics Revision Task Force that flesh out seminal changes in the revised ACA Code of Ethics in the areas of confidentiality, romantic and sexual interactions, dual relationships, end‐of‐life care for terminally ill clients, cultural sensitivity, diagnosis, interventions, practice termination, technology, and deceased clients. 相似文献
993.
Edward D. Barker Henrik Larsson Essi Viding Barbara Maughan Fruhling Rijsdijk Nathalie Fontaine Robert Plomin 《Journal of psychopathology and behavioral assessment》2009,31(4):299-308
Although both aggressive (AGG) and deceitful behaviors (DEC) are symptoms of childhood conduct problems, few studies have
examined common vs. specific etiological influences. Early intervention is encouraged for conduct problems and findings from
genetically informative studies can suggest whether interventions should focus on conduct problems in general or groupings
of conduct problems more specifically. Twin model-fitting analyses were conducted on same and different teacher ratings of
AGG and DEC for 872 9-year old male twin pairs. Common genetic influences were found to underlie the susceptibility for both
AGG and DEC. The same teacher ratings resulted in somewhat higher heritability estimates than different teacher ratings. Results
also indicated stronger environmental effects for DEC as compared with AGG, with a significant shared environmental component
for same teachers and a substantial non-shared environmental component for different teachers. Our data suggest that AGG and
DEC share risk genes and environmental factors may differentiate these two types of conduct problems. Characterizing these
specific environmental factors may be useful when developing interventions. 相似文献
994.
Interest in implicit processes is at an all-time high in psychology. Research on individual differences in implicit motivation has been conducted for decades and offers an important conceptual and empirical foundation for the growing interest in cognitive processes outside awareness. In this article, we review the past findings on the influence of implicit motivation on both basic and complex cognitive processes in the stages of attention and encoding as well as rehearsal, organization, and retrieval. Data from narrative essays as well as experimentally controlled studies demonstrate that individual differences in implicit motives have an influence on each step of learning and memory processes. Implicit motives influence the cognitive processing of motive-related information to facilitate desired affective end states. 相似文献
995.
Barbara Sicherman 《Journal of the history of the behavioral sciences》1971,7(2):203-204
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997.
Barbara Ross 《Journal of the history of the behavioral sciences》1984,20(3):219-219
998.
Barbara Sicherman 《Journal of the history of the behavioral sciences》1974,10(4):467-469
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