排序方式： 共有113条查询结果，搜索用时 46 毫秒
1.
Israel Halperin Dale W. Chapman David T. Martin Chris Abbiss 《Journal of sports sciences》2017,35(5):500-507
Research indicates that instructing athlete’s to focus on bodily movements (internal focus of attention [IFA]) may hinder performance, whereas instructing them to focus on the movement outcome (external focus of attention [EFA]) often enhances performance. Despite the importance of instructions in striking combat sports, limited research has examined the influence of IFA and EFA on performance in well-trained combat athletes. This study investigated the effects of different instructional cues on punching velocity (m · s?1) and normalised impact forces (N · kg?1) among intermediate (n = 8) and expert (n = 7) competitive boxers and kickboxers. Athletes completed three rounds of 12 maximal effort punches delivered to a punching integrator on three separate days. Day one was a familiarisation session with only control instructions provided. In the following two days athletes randomly received IFA, EFA or control instructions prior to each of the three rounds. Athletes punching with EFA were 4% faster and 5% more forceful than IFA (P < 0.05), and 2% faster and 3% more forceful than control (P < 0.05). Furthermore, experts punched 11% faster and with 13% greater force compared with intermediate athletes (P < 0.05). EFA led to a positive effect on punching performance and should be favoured over IFA and control instructions. 相似文献
2.
Israel Halperin Dale W. Chapman Kevin G. Thompson Chris Abbiss 《Journal of sports sciences》2019,37(1):59-66
Prior research indicates that providing participants with positive augmented feedback tends to enhance motor learning and performance, whereas the opposite occurs with negative feedback. However, the majority of studies were conducted with untrained participants performing unfamiliar motor tasks and so it remains unclear if elite athletes completing familiar tasks respond in a similar fashion. Thus, this study investigated the effects of three different versions of false-performance feedback on punching force (N), pacing (force over time) and ratings of perceived exertion (RPE) in 15 elite amateur male boxers. Athletes completed a simulated boxing bout consisting of three rounds with 84 maximal effort punches delivered to a punching integrator on four separate days. Day one was a familiarisation session in which no feedback was provided. In the following three days athletes randomly received false-positive, false-negative and false-neutral feedback on their punching performance between each round. No statistical or meaningful differences were observed in punching forces, pacing or RPE between conditions (P > 0.05; ≤ 2%). These null results could stem from the elite status of the athletes involved, the focus on performance rather than learning, or they may indicate that false feedback has a less potent effect on performance than previously thought. 相似文献
3.
Brian Klebig Joanna Goldonowicz Elisa Mendes Ann Neville Miller James Katt 《Communication Research Reports》2016,33(2):152-158
This study investigated the combined role of instructor communication variables (nonverbal immediacy and self-disclosure), instructor credibility (competence, caring, and trustworthiness), and student personality traits (extraversion, neuroticism, agreeableness, conscientiousness, and openness) in predicting students’ uncivil behaviors in class. A total of 406 students completed online questionnaires regarding the instructor of the class they attended prior to the one in which the study was administered. Personality and instructor behavior variables contributed approximately equally to explaining variance in student incivility. Students’ conscientiousness and agreeableness had direct negative relationships with incivility, whereas instructors’ amount and negativity of self-disclosure had direct positive relationships with incivility. 相似文献
4.
This is the preliminary study of a test of phonologicalawareness which does not require that subjects speak or hear toparticipate. The test was designed to minimize memory loads, and tomeasure speeded written naming and segmentation-by-sound. Spelling datacan also be collected. Subjects have 45 seconds to name items in each oftwo sets of line drawings. The average frequency of the names variesacross these sets. In the third set, subjects must name the items, andalso segment the written names into their constituent sounds. This taskwas administered to disabled and normally-reading adults, with twocommon tests of phonological awareness. The new test discriminatedbetween the readers as reliably as the benchmark tasks, correlating witheach better than they correlated with each other. The new test was thenadministered to deaf adults, who performed similarly to the disabled(hearing) readers. The data represent the first direct demonstration ofphonological abilities in deaf subjects, using a task designedspecifically for that purpose. 相似文献
5.
非言语行为与言语行为一样，因文化的不同往往赋予不同的意义。在文化交际过程中，由于不同的文化对非言语行为的不同解释，往往会产生误解。非言语交际以往多被看作体态语的代名词，其实它的范围远远超过了单纯的体态语。从人的身体距离、座位安排、家具布置到一种文化成员对待时间的态度。沉默的使用，我们可以了解一种文化最根本的态度和价值观。 相似文献
6.
Redefining Hijab: American Muslim Women's Standpoints on Veiling 总被引：1，自引：0，他引：1
《Journal of Applied Communication Research》2007,35(3):294-319
Feminist standpoint theory suggests that, although powerful discourses attempt to define women on the “margins” of society, women's cultural positions provide them with heightened understandings of the contradictions between their experiences and the ways the dominant group defines them. Thus, while many Americans believe hijab—also called a “veil” or “headscarf”—functions to oppress women, veiled women probably possess alternative understandings. In this study, 13 veiled American Muslim women share their experiences, and under the lens of standpoint theory, the participants' definition of hijab emerges. Specifically, the women inscribe hijab with meanings shaped by their unique cultural standpoints. Hijab functions to define Muslim identity, perform a behavior check, resist sexual objectification, afford more respect, preserve intimate relationships, and provide freedom. 相似文献
7.
目的:研究成年女性在卧位臀部肌肉伸展时,是否存在一致的、可以区别的肌肉激活顺序。同时,探讨语言提示对髋部肌肉激活和运动的影响;方法:让受试者按照无语言提示、语言提示特定肌肉的条件进行测试。当受试者处于卧位髋部伸展时,测量髋部和膝部的角度,测试臀大肌、腘肌中部、腘肌外侧的肌电数据;结果:在无语言提示条件下,受试者的髋肌激活按照腘肌中部、腘肌外侧、臀大肌的顺序进行。与之相比,3块肌肉在语言提示条件下,在不同的运动阶段,呈现出不同的肌肉激活和运动状态;结论:健康成年女性在卧位髋部伸展时,肌肉激活存在一致的顺序,而语言提示可以改变激活时间、幅度及运动状态。该研究可以为腰部、髋部肌肉疼痛女性患者的康复提供理论与方法。 相似文献
8.
跨文化交际视域下的"笑" 总被引：1，自引：0，他引：1
肖芳英 《湖南科技学院学报》2010,31(3):63-64,68
从跨文化交际的角度考虑,笑作为一种非语言交际行为的含义在不同的交际场合和文化背景下是有区别的,不了解这一点,就容易引起文化误解,导致交际的失败。笑具有丰富的文化内涵,其在交际中的显露规则因时因地而异。因此,在跨文化交际中,我们应遵循一定的交际原则,正确运用笑的语用功能达到交际的目的。 相似文献
9.
Teri Shilling 《The Journal of perinatal education》2008,17(4):57-62
In this column, reviewers offer perspectives and comments on a variety of new media resources for childbirth educators and for expectant and new parents. The topics of DVDs and books reviewed here include fatherhood, labor-support techniques, optimal labor positions, infant massage, breastfeeding, healthy nutrition during the childbearing year, understanding a newborn''s cues, personal viewpoints on cesarean birth, and postpartum massage. 相似文献
10.
李威 《遵义师范学院学报》2008,10(6)
非语言交际是人类重要的交际方式之一,是课堂教学中传递信息,促进师生交流的重要手段。本文简述了非语言交际在英语教学中的重要性及其在课堂教学中的具体运用。探讨了一些用非语言交际优化英语教学的方法。 相似文献