PROPELLING FORCE MEASURED DURING TETHERED SWIMMING IN 4 COMPETITIVE SWIMMING STYLES
PROPELLING FORCE MEASURED DURING TETHERED SWIMMING IN 4 COMPETITIVE SWIMMING STYLES
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DOI：
10.1080/10671188.1970.10614948
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发表时间：
1970-01-01
期刊：
影响因子：
--
通讯作者：
MAGEL, JR
中科院分区：
文献类型：
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作者：
MAGEL, JR
本文用测力传感器对26名大学生游泳运动员在4种不同泳姿下3分钟绳系游泳时的平均推进力进行了电测。游泳运动员被绑在一个滑轮和配重系统上，通过一条约束线系在一条绕在游泳运动员腰部的帆布带上。将力传感器放置在重量架上方的约束线中。系留游泳测试包括3分钟游泳，每个工作水平之间休息3-5分钟。每个游泳周期增加1.14 kg的工作负荷，直到游泳者在3分钟的游泳过程中无法再支撑配重。蛙泳运动员记录的最高平均值的力量施加在3分钟。栓系游泳。背泳、前泳和蝶泳的平均推进力似乎没有很大差异。在蛙泳中，腿的功对总推进力的贡献比前爬泳和后爬泳大得多，在前爬泳和后爬泳中，臂泳提供了推进力的主要部分。在蝶泳中，手臂和腿提供的推进力似乎大致相同。在零速度游泳的推进力的测量提供了一个很好的估计，可以在定期自由游泳的推进力。
The average propelling force exerted during 3-min. tethered swims was measured electrically by use of a force transducer in 26 highly trained college swimmers in each of the four competitive swimming styles. The swimmers were attached to a pulley and counterweight system by means of a restraining line atttached to a canvas belt worn around the swimmer's waist. A force transducer was placed in the restraining line just above the weight rack. The tethered swimming test consisted of 3-min. swims with a 3–5 min. rest between each work level. The work load was increased each swim period by 1.14 kg until the swimmer could no longer support the counterweight during the 3-min. swim. Breaststroke swimmers recorded the highest average values for force exerted during 3-min. tethered swims. The average propelling force recorded for back crawl, front crawl, and butterfly tethered swimming did not appear to differ greatly. In breaststroke swimming, the work of the legs makes a much larger contribution to the total propulsive force as compared to front crawl and back crawl swimming, where the armstroke provides the major portion of the propulsive force. In butterfly swimming, the propelling forces delivered by the arms and legs appear to be approximately the same. The measurement of propelling forces swimming at zero velocity provides a good estimate of the propulsive force that can be developed during regular free swimming.