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211.
Preliminary evaluation of an after-school resistance training program for improving physical fitness in middle school-age boys 总被引:1,自引:0,他引:1
Faigenbaum AD McFarland JE Johnson L Kang J Bloom J Ratamess NA Hoffman JR 《Perceptual and motor skills》2007,104(2):407-415
Most after-school physical activity programs for youth focus on aerobic games and activities. The purpose of this study was to evaluate the efficacy of an after-school resistance training program on improving the physical fitness of middle school-age boys. 22 boys (M = 13.9 yr., SD = .4 yr.) participated in a periodized, multiple-set, 9-wk. (2x/week) resistance training program. All subjects were pre- and post-tested on their 10-repetition maximum squat, 10-repetition maximum bench press, vertical jump, medicine ball toss, flexibility, and also percentage of body fat and the progressive aerobic cardiovascular endurance run (PACER). Statistical analysis indicated that subjects significantly improved performance on the squat (19%), bench press (15%), flexibility (10%), vertical jump (5%), medicine ball toss (12%), and the PACER (36%). Although this design minus a control group limits interpretation, this after-school resistance-training program can improve muscular fitness and cardiovascular fitness in boys and should be replicated with appropriate experimental controls. 相似文献
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The development of lying to conceal one's own transgression was examined in school-age children. Children (N=172) between 6 and 11 years of age were asked not to peek at the answer to a trivia question while left alone in a room. Half of the children could not resist temptation and peeked at the answer. When the experimenter asked them whether they had peeked, the majority of children lied. However, children's subsequent verbal statements, made in response to follow-up questioning, were not always consistent with their initial denial and, hence, leaked critical information to reveal their deceit. Children's ability to maintain consistency between their initial lie and subsequent verbal statements increased with age. This ability is also positively correlated with children's 2nd-order belief scores, suggesting that theory of mind understanding plays an important role in children's ability to lie consistently. 相似文献
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利用信号检测论的方法对130名大学生的国家科技成就刻板印象进行研究。结果发现,被试对中国近现代及当代科技成就判断标准的自然对数值显著高于对中国古代、美国近现代及当代科技成就判断标准的自然对数值(p<0.001),同时,被试对中国古代、美国近现代及当代科技成就的判断标准自然对数值没有显著差异(p>0.05),从而证明了大学生群体中明显存在着国家科技成就刻板印象。进一步的含义表明,大学生对中国古代科技成就依然保持绝对的自信,对中国近现代及当代科技成就的自卑并没有显著改变。在被试对2005年中国科技竞争力在全球的排名进行估计时,高估的人数显著多于低估的人数(p<0.001),从而表明,大学生对中国当前及未来科技成就的自信心开始建立。 相似文献
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随着经济文化的发展和生活水平的提高,消费领域中出现了很多与审美相关的消费。本文透过这些现象分析消费者进行审美消费的内在动因,并且探讨一些应对思路。 相似文献
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1893年,毛泽东出生在湖南一个偏僻闭塞的山村,像大多数中国农村妇女一样,母亲高氏信佛。因为头两个孩子在襁褓中夭折,所以毛泽东出生后,高氏曾多方祈求神佛保佑,虔诚吃“观音斋”。关于童年的生活,毛泽东说:“我父亲早年和中年都不信神,可是我母亲却是一个虔诚的佛教徒。她向自 相似文献
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This experimental study with a national online sample (n = 300) tested the effects of storytelling in radio advertisements on participants' positive emotional responses and intentions to share information about the product, depending on audiences' narrative engagement level. Treatments included a commercial for a fictitious brand of luggage using a story told by the founder of the company, another version of the same commercial manipulated so the speaker was a customer of the company, and a control stimulus consisting only of information about the product. Results showed that narrative transportation and narrative preference are positively associated with favorable responses toward ad. Stories elicited more favorable emotional responses and had some effect on participants' intention to share information about the product by word‐of‐mouth. This was especially true among participants hearing the founder's story. Results support previous assumptions about the power of storytelling in advertising, including distinctions regarding the identity of the speaker (founder vs. customer). 相似文献