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21.
The power output achieved at peak oxygen consumption (VO2peak) and the time this power can be maintained (i.e., Tmax) have been used in prescribing high-intensity interval training. In this context, the present study examined temporal aspects of the VO2 response to exercise at the cycling power that output well trained cyclists achieve their VO2peak (i.e., Pmax). Following a progressive exercise test to determine VO2peak, 43 well trained male cyclists (M age = 25 years, SD = 6; M mass = 75 kg, SD = 7; M VO2peak = 64.8 ml x kg(-1) x min(-1), SD = 5.2) performed two Tmax tests 1 week apart. Values expressed for each participant are means and standard deviations of these two tests. Participants achieved a mean VO2peak during the Tmax test after 176 s (SD = 40; M = 74% of Tmax, SD = 12) and maintained it for 66 s (SD = 39; M = 26% of Tmax, SD = 12). Additionally, they obtained mean 95% of VO2peak after 147 s (SD = 31; M = 62% of Tmax, SD = 8) and maintained it for 95 s (SD = 38; M = 38% of Tmax, SD = 8). These results suggest that 60-70% of Tmax is an appropriate exercise duration for a population of well trained cyclists to attain VO2peak during exercise at Pmax. However, due to intraparticipant variability in the temporal aspects of the VO2 response to exercise at Pmax, future research is needed to examine whether individual high-intensity interval training programs for well trained endurance athletes might best be prescribed according to an athlete's individual VO2 response to exercise at Pmax. 相似文献
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根据我国传统养生理论的观点,结合人体运动及针灸、气功修炼实践,对经络学说作了全面的剖析,提出:人体运动,经络通畅;经络既通,其形乃彰;经络失常,人体衰老;疏通经络,延年益寿等观点,为人们的运动健身和养生保健提供有益的借鉴。 相似文献
23.
Raymond W. Kulhavy Mary T. White Bruce W. Topp Ann L. Chan James Adams 《Contemporary educational psychology》1985,10(3):285-291
College undergraduates read a 2400-word passage, responded to 16 multiple-choice questions, and received one of four types of feedback following their responses. Complexity of feedback was inversely related to both error correctability and criterion efficiency taken as a ratio of feedback study time to post-test corrects. The results were discussed in terms of depth of processing and instructional comprehension. 相似文献
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Jia-Yan Pan Daniel Fu Keung Wong Cecilia Lai Wan Chan Lynette Joubert 《Int J Intercult Relat》2008,32(6):505-514
Although research has demonstrated a strong linkage between meaning of life and positive emotion, few studies have examined this association in the context of acculturation. The purpose of this study was to investigate the predictive effects of meaning of life and acculturative stressor on positive affect in a sample of Chinese international students in Australia and Hong Kong, and to compare these effects between the two groups. Four hundred mainland Chinese postgraduate students at six universities in Hong Kong and 227 Chinese international students at the University of Melbourne in Australia completed a questionnaire that included measures of acculturative stressor, meaning of life, positive affect, and demographic information. The analyses revealed that (1) meaning of life had a strong positive contribution to predict positive affect in acculturation, and acculturative stress had a negative impact on positive affect within both samples; (2) social interaction had a significant negative predictive effect on positive affect in both samples, and academic work served as a significant negative predictor of positive affect in the Hong Kong sample; and (3) meaning of life was found to mediate the relationship between acculturative stress and positive affect in both samples. The theoretical and practical implications of the study are discussed. 相似文献
27.
高职计算机基础课程项目驱动教学方法的探索与研究 总被引:1,自引:0,他引:1
陈薇 《中国科教创新导刊》2011,(4):183+185-183,185
高职教育培养以服务为宗旨,以就业为导向,具有一定理论知识和较强实践能力,面向基层、面向生产、面向服务和管理第一线职业岗位的实用型、技能型专门人才。目前的职业岗位要求中,计算机基础能力是其中必不可少的一项。本文从目前高职学生的实际出发,对项目驱动教学方法在计算机基础课程中的应用进行探索和研究,提出教学设计的方法,以进一步促进高职教学改革。 相似文献
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Ned Brophy-Williams Matthew William Driller Cecilia Mary Shing James William Fell Shona Leigh Halson 《Journal of sports sciences》2015,33(13):1403-1410
The purpose of this investigation was to measure the interface pressure exerted by lower body sports compression garments, in order to assess the effect of garment type, size and posture in athletes. Twelve national-level boxers were fitted with sports compression garments (tights and leggings), each in three different sizes (undersized, recommended size and oversized). Interface pressure was assessed across six landmarks on the lower limb (ranging from medial malleolus to upper thigh) as athletes assumed sitting, standing and supine postures. Sports compression leggings exerted a significantly higher mean pressure than sports compression tights (P < 0.001). Oversized tights applied significantly less pressure than manufacturer-recommended size or undersized tights (P < 0.001), yet no significant differences were apparent between different-sized leggings. Standing posture resulted in significantly higher mean pressure application than a seated posture for both tights and leggings (P < 0.001 and P = 0.002, respectively). Pressure was different across landmarks, with analyses revealing a pressure profile that was neither strictly graduated nor progressive in nature. The pressure applied by sports compression garments is significantly affected by garment type, size and posture assumed by the wearer. 相似文献
30.
随着我国工学结合课程改革的不断深入,在旅游教学活动中,必须真正的关注学生,以促进学生的发展为本。对教学内容,教师要进行反复研究和筛选,使教学内容更适合学生,让学生学得会,用得上。精品课的开发旨在使学生在专业学习和实际工作中不光"知道",而且"会做"。 相似文献