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本研究中,由6男4女竞技游泳运动员确定游泳总效率。定义输出功率与输入功率之比为总效率。在某泳速范围内(0.95—1.6米/秒),输入功率(能量消耗率445—1137瓦)由吸氧量(1.33—3.25升/分)换算。总输出功率(26—108瓦)由一个有力传感器的水下推板系统(MAD系统)直接测得,运用MAD系统时,附加呼吸器对人体的阻力影响可以忽略不计。所得总效率在5％至9.5％之间。相同泳速时,男运动员表现出较高的总效率。其原因则在于某一速度时男运动员所需的输出功率较大。总效率决定于绝对输出功率,即输出功率增加,其总效率也增大。相同输出功率时男、女运动员间的总效率值无差异。
In this study, six male and four female swimmers were used to determine the total swimming efficiency. Define the ratio of output power to input power as total efficiency. The input power (energy consumption 445-1137 watts) is calculated from oxygen uptake (1.33-3.25 l / min) over a range of swim speeds (0.95-1.6 m / s). The total output power (26-108 watts) is measured directly by a powerful sensor under-water push-plate system (MAD system) with negligible impact on the body’s resistance using the MAD system. The resulting total efficiency is between 5% and 9.5%. Male athletes showed higher overall efficiency at the same swimming speed. The reason is that a certain speed male athletes need more output power. The total efficiency depends on the absolute output power, that is, the output power increases, its total efficiency also increases. The same total output power of male and female athletes no difference between the total efficiency.