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231.
Brad Jon Schoenfeld Andrew Vigotsky Bret Contreras Sheona Golden Andrew Alto Rachel Larson 《European Journal of Sport Science》2018,18(5):705-712
The purpose of this study was to investigate the effects of using an internal versus external focus of attention during resistance training on muscular adaptations. Thirty untrained college-aged men were randomly assigned to an internal focus group (INTERNAL) that focused on contracting the target muscle during training (n?=?15) or an external focus group (EXTERNAL) that focused on the outcome of the lift (n?=?15). Training for both routines consisted of 3 weekly sessions performed on non-consecutive days for 8 weeks. Subjects performed 4 sets of 8–12 repetitions per exercise. Changes in strength were assessed by six repetition maximum in the biceps curl and isometric maximal voluntary contraction in knee extension and elbow flexion. Changes in muscle thickness for the elbow flexors and quadriceps were assessed by ultrasound. Results show significantly greater increases in elbow flexor thickness in INTERNAL versus EXTERNAL (12.4% vs. 6.9%, respectively); similar changes were noted in quadriceps thickness. Isometric elbow flexion strength was greater for INTERNAL while isometric knee extension strength was greater for EXTERNAL, although neither reached statistical significance. The findings lend support to the use of a mind–muscle connection to enhance muscle hypertrophy. 相似文献
232.
Brad Turner 《Learned Publishing》2018,31(1):25-29
Key points
- Bookshare is the world's largest library of accessible titles provided to members and through special agreements.
- Dyslexia is often forgotten as an impediment to access but must be accounted for within accessible publications.
- Certification of accessibility provides confidence for purchasers and a marketing tool for publishers.
- Accessibility requires multiple routes to access, on different platforms and in different formats.
- Accessible artworks need particular attention, and this is often lacking in ‘accessible’ publications.
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Health policy experts long have argued that a combination of budgetary constraints, lack of legislative expertise, and parochial attitudes make it unlikely that the U.S. states will contribute significantly to health care reform. This is particularly true of states like Texas, which ranks last or near-to-last in virtually every measure of public health, and is dominated by conservative politics and libertarian, free market ideology. Yet, in 1997 the Texas legislature enacted the first Patient's Bill of Rights. This article examines the political and rhetorical processes that led to successful reform, and discusses the implications that success in "the least likely place" holds for the making of health care policy. 相似文献
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Brad Franklin 《英语沙龙》2013,(8):22
如果你走在人群中常常有种茫然不知所措的感觉,如果你面对陌生人永远胆怯沉默……那么你的问题很可能不仅仅是不善于与人沟通,更大的可能性是:你不自信!但自信是一个非常抽象的词,自信大方的感觉也是一种很难描述的气场。不过我们的教育专家Brad有一个培养自信的小秘方,在这方面有疑惑的同学,赶紧来学一学! 相似文献
238.
Brad Franklin 《英语沙龙》2013,(12):42-43
今年的十一黄金周假期.Anna没有外出游玩,而是选择“留守”校园享受独处的静谧。她联想到了大洋彼岸的加拿大,那里的人们会如何度假?又最热衷于哪种度假方式?Anna很是好奇。Brad娓娓道来,并分享了自己的旅游经历。 相似文献
239.
This case study provides insight into a current issue faced by sporting leagues—the movement of professional players to different sports. As the case illustrates, the movement of professional players across sport codes can have a profound impact on the management of sport development, the management of player contracts, and legal issues in restraint of trade. 相似文献
240.
Brad J. Schoenfeld Bret Contreras Gul Tiryaki-Sonmez Jeffrey M. Willardson Fabio Fontana 《Sports biomechanics / International Society of Biomechanics in Sports》2014,13(3):296-306
The purpose of the study was to compare core muscle activation of the tradition prone plank with a modified version performed with a long-lever and posterior-tilt using surface electromyography. To further determine if a specific component of this modified plank was more effective than the other in enhancing muscle activity, the plank with a long lever and the plank with a posterior pelvic tilt were studied individually. Nineteen participants performed all four variations of the plank for 30 seconds in a randomized order with 5-minute rest between exercise bouts. Compared to the traditional prone plank, the long-lever posterior-tilt plank displayed a significantly increased activation of the upper rectus abdominis (p < 0.001), lower abdominal stabilizers (p < 0.001), and external oblique (p < 0.001). The long-lever plank showed significantly greater activity compared to the traditional plank in the upper rectus abdominis (p = 0.015) and lower abdominal stabilizers (p < 0.001), while the posterior tilt plank elicited greater activity in the external oblique (p = 0.028). In conclusion, the long-lever posterior-tilt plank significantly increases muscle activation compared to the traditional prone plank. The long-lever component tends to contribute more to these differences than the posterior-tilt component. 相似文献