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| 少儿初学者的新型游泳背漂的设计与应用 |
| Design and Application of a New Type Back-float for Children Beginners |
| Received:July 13, 2016 |
| DOI： |
| 中文关键词:少儿 游泳背漂 设计研发 辅助教具 游泳教学 |
| 英文关键词:children back-float design and development teaching aid teaching of swimming |
| 基金项目: |
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| 中文摘要: |
| 针对现有背漂舒适度差、阻力大、易上滑的缺点,意在改良和设计一款新型背漂--鳍翼。采用观察法、问卷调查法、实验法，运用流体力学、运动生物力学原理，对新型背漂进行调查和实验研究。调查结果显示，与现有背漂相比，新型背漂舒适度良好。实验结果显示，与现有背漂相比，新型背漂出现系带滑落的次数、背漂上滑距离明显较少（P＜0.05），且在25 m蛙泳腿测试中，实验组佩戴新型背漂的25 m蛙泳腿游进速度比对照组佩戴原有背漂的游进速度快，并存在显著性差异（P＜0.05）。研究结果表明新型背漂比原有背漂的阻力小，结构更优化，有利于学员更快、更安全地学习游泳，也有利于提高教练的教学效果。 |
| 英文摘要: |
| This article aims to design a new type back-drift of fins in order to improve the current back-drift's disadvantages of poor comfort, high resistance and being easy to slip. The article uses the methods of observation, questionnaire and experiment to investigate and study the new type back-drift, using the principles of fluid mechanics and sports biomechanics. The investigation result shows that the new back-drift is more comfortable, compared with the existing one. The experiment result shows that the number of back-drift slip and the distance of back-drift slip are significantly less than those of the existing back-drift (P<0.05). And in the 25-meter breaststroke leg test, the swimming speed of the experimental group wearing the new back-drift was faster than that of the control group wearing the existing back-drift, and there exists a significant difference (P<0.05). The result of the study shows that the new back-drift has the advantages of less resistance and better structure and is more conducive to the students' learning swimming faster and safer. Besides, it helps improve the teaching effect of the coaches. |
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