EFFECTS OF ISOMETRIC TRAINING ON VERTICAL JUMPING
EFFECTS OF ISOMETRIC TRAINING ON VERTICAL JUMPING
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DOI：
10.1080/10671188.1964.10613305
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发表时间：
1964-01-01
期刊：
影响因子：
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通讯作者：
WALLIS, EL
中科院分区：
文献类型：
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作者：
BALL, JR;RICH, GQ;WALLIS, EL
63名大学生被分为两组，根据他们最初对一个特殊构造的装置的垫肩施加等长力的能力。进行测量并调整仪器以适应每个受试者，以便膝盖弯曲到通常开始垂直跳跃的角度。在为期六周的训练计划开始和结束时，对实验组和控制组的所有受试者进行精确的垂直跳跃测量。实验组每周进行三次器械训练，共六周。对照组未接受训练。一个10秒在每个训练日都要尽最大的努力。实验组的力量显著增加（平均增加78磅，或17.3%，在1%的置信水平下显著）。然而，这种力量的增加并没有伴随着跳跃能力的增加。
Sixty-three college men were divided into two equated groups on the basis of their initial ability to exert isometric force upward against shoulder pads of a specially constructed device. Measurements were made and the apparatus adjusted to fit each subject so that the knees were flexed to the angle at which a vertical jump is usually initiated. All subjects in the experimental and control groups were precisely measured in the vertical jump at the beginning and the conclusion of the six-week training program. The experimental group trained on the apparatus three times per week for six weeks. The control group was not trained. One 10-sec. bout of maximum effort was made on each training day. The experimental group increased significantly in strength (mean gains of 78 lb., or 17.3 percent, significant at the 1 percent level of confidence). However, this increase in strength was not accompanied by an increase in jumping ability.