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当今,体育运动不断发展,技艺日新,特别在应用体育方面,不断产生新的科普知识。下面介绍一组应用体育的新科技与新知识:△最佳呼吸方法最近,前苏联体育专家斯特列利佐夫发现运用新的呼吸方法,可以提高呼吸系统工作效率30-40%,降低乳酸浓度1/2。其方法是吸气时要定量吸入空气。这能够在不改变赛跑速度的情况下使氧气在肺部的停留时间增加1倍。他还重视呼吸的频率、深度和节奏,因为这些因素是彼此密切相关的。呼吸次数越少,氧气就能更多地进入肌肉。运动员一般大约需要0.8秒的吸气时间,每分钟呼吸42至44次。在每小时跑15公里的情况下,选手的耗氧量不会超过需求量。速度增加时,呼吸也改变,即次数更频繁,深度越来越差。这表明,尽管空气数量增加了,但氧气被利用的程度却降低了,结果就
Today, the continuous development of sports, new skills, especially in the application of sports, continue to produce new popular science knowledge. The following introduces a group of new technologies and new knowledge of sports: △ best breathing method Recently, the former Soviet Union sports expert Strelitzov found that the use of new breathing methods, can improve the respiratory system efficiency of 30-40%, reduce the concentration of lactic acid 1/2. The method is to breathe inhalation of quantitative air. This enables oxygen to double in the lungs without changing the speed of the race. He also values the frequency, depth, and pace of breathing, as these are closely related to each other. The less breathing, the more oxygen can get into the muscles. Athletes generally need about 0.8 seconds of inspiration and 42 to 44 breaths per minute. In the case of running 15 kilometers per hour, the player’s oxygen consumption will not exceed the demand. As speed increases, breathing changes, ie, more often and deeper and deeper. This shows that although the amount of air is increased, the extent to which oxygen is utilized is reduced, and as a result