A Single Bout of Resistance Training Improves State Body Image in Male Weight-Trainers
A Single Bout of Resistance Training Improves State Body Image in Male Weight-Trainers
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单次阻力训练可改善男性举重训练者的身体形象
DOI：
10.1037/spy0000076
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Cordes
中科院分区：
文献类型：
--
作者：
Waldorf;Erkens;McCreary;D. R. ;Cordes
虽然更持久的耐力训练可以改善身体形象，但目前还缺乏对其短期影响的研究。本研究旨在测试单轮阻力训练对男性锻炼者整体和特定(即与体脂和肌肉有关)身体形象状态的假设有益影响。此外，还探讨了驱动力对肌肉的调节作用。在一项对照交叉研究中，42名有经验的举重教练接受了(A)一次阻力训练；(B)一次有氧运动(骑自行车)；(C)一次阅读杂志。在每种情况发生前、发生后即刻和24小时后对身体形象状态进行评估。正如假设的那样，阻力训练，而不是骑自行车或阅读，导致在身体形象状态的剪影测量中感觉到的肌肉数量显著增加(g=0.31或3公斤)。两种运动条件都能显著降低体脂(阻力训练时g=−0.33或−2.5%)，但对于阻力训练，这只适用于肌肉驱动力较低的男性(g=。58，p<；01)。24小时后，分数恢复到基线水平。即使只进行一轮阻力训练，男性在肌肉和脂肪方面的身体形象状态也会在短期内得到改善，这可能会增强锻炼行为。目前的发现可能促进对身体形象因素的理解，这些因素有助于过度举重行为的发展。
Although improvements in body image have been shown for longer-lasting resistance training, research on its short-term effects is currently lacking. The present study set out to test a hypothesized beneficial effect of a single bout of resistance training on global and specific (ie, body fat-and muscularity-related) body image states of male exercisers. Additionally, a moderating effect of drive for muscularity was explored. In a controlled crossover study, 42 experienced weight trainers received (a) a session of resistance training;(b) a session of aerobic exercise (cycling); and (c) a session of magazine reading. Body image states were assessed before and immediately after each condition, and after 24 hr. As hypothesized, resistance training, but not cycling or reading, led to a significant increase in perceived muscularity on a silhouette measure of body image states (g= 0.31 or 3 kg). Both exercise conditions led to a significant decrease in perceived body fat (g=− 0.33 or− 2.5% for resistance training), but for resistance training, this only held true for men lower in drive for muscularity (g=. 58, p<. 01). After 24 hr, scores had returned to baseline levels. Even a single bout of resistance training yields short-term improvements in men’s body image states on both the muscularity and fat dimension, which may act as a reinforcer of exercise behavior. The present findings might foster the understanding of body-image factors that contribute to the development of excessive weight-lifting behavior.
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期刊：
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