利用杠铃速度预测半蹲练习中的最大动态力量。
Using Bar Velocity to Predict the Maximum Dynamic Strength in the Half-Squat Exercise.
作者信息
Loturco Irineu, Pereira Lucas A, Cal Abad Cesar C, Gil Saulo, Kitamura Katia, Kobal Ronaldo, Nakamura Fábio Y
机构信息
NAR - Nucleus of High Performance in Sport, São Paulo, Brazil.
出版信息
Int J Sports Physiol Perform. 2016 Jul;11(5):697-700. doi: 10.1123/ijspp.2015-0316. Epub 2015 Oct 9.
PURPOSE
To determine whether athletes from different sport disciplines present similar mean propulsive velocity (MPV) in the half-squat (HS) during submaximal and maximal tests, enabling prediction of 1-repetition maximum (1-RM) from MPV at any given submaximal load.
METHODS
Sixty-four male athletes, comprising American football, rugby, and soccer players; sprinters and jumpers; and combat-sport strikers attended 2 testing sessions separated by 2-4 wk. On the first visit, a standardized 1-RM test was performed. On the second, athletes performed HSs on Smith-machine equipment, using relative percentages of 1-RM to determine the respective MPV of submaximal and maximal loads. Linear regression established the relationship between MPV and percentage of 1-RM.
RESULTS
A very strong linear relationship (R2 ≈ .96) was observed between the MPV and the percentages of HS 1-RM, resulting in the following equation: %HS 1-RM = -105.05 × MPV + 131.75. The MPV at HS 1-RM was ~0.3 m/s.
CONCLUSION
This equation can be used to predict HS 1-RM on a Smith machine with a high degree of accuracy.
目的
确定来自不同运动项目的运动员在次最大负荷和最大负荷测试中，半蹲（HS）时的平均推进速度（MPV）是否相似，从而能够在任何给定的次最大负荷下根据MPV预测1次重复最大重量（1-RM）。
方法
64名男性运动员，包括美式足球、橄榄球和足球运动员；短跑运动员和跳远运动员；以及格斗运动打击手参加了两次测试，两次测试间隔2-4周。第一次测试时，进行标准化的1-RM测试。第二次测试时，运动员在史密斯机上进行半蹲，使用1-RM的相对百分比来确定次最大负荷和最大负荷时各自的MPV。线性回归确定了MPV与1-RM百分比之间的关系。
结果
观察到MPV与半蹲1-RM百分比之间存在非常强的线性关系（R2≈0.96），得出以下方程：%半蹲1-RM = -105.05×MPV + 131.75。半蹲1-RM时的MPV约为0.3米/秒。
结论
该方程可用于高度准确地预测史密斯机上的半蹲1-RM。
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