García-Ramos Amador, Pestaña-Melero Francisco Luis, Pérez-Castilla Alejandro, Rojas Francisco Javier, Haff Guy Gregory
Int J Sports Physiol Perform. 2018 Mar 1;13(3):326-331. doi: 10.1123/ijspp.2017-0158. Epub 2018 Mar 6.
To compare the load-velocity relationship between 4 variants of the bench-press (BP) exercise.
The full load-velocity relationship of 30 men was evaluated by means of an incremental loading test starting at 17 kg and progressing to the individual 1-repetition maximum (1RM) in 4 BP variants: concentric-only BP, concentric-only BP throw (BPT), eccentric-concentric BP, and eccentric-concentric BPT.
A strong and fairly linear relationship between mean velocity (MV) and %1RM was observed for the 4 BP variants (r > .96 for pooled data and r > .98 for individual data). The MV associated with each %1RM was significantly higher in the eccentric-concentric technique than in the concentric-only technique. The only significant difference between the BP and BPT variants was the higher MV with the light to moderate loads (20-70%1RM) in the BPT using the concentric-only technique. MV was significantly and positively correlated between the 4 BP variants (r = .44-.76), which suggests that the subjects with higher velocities for each %1RM in 1 BP variant also tend to have higher velocities for each %1RM in the 3 other BP variants.
These results highlight the need for obtaining specific equations for each BP variant and the existence of individual load-velocity profiles.
比较卧推（BP）练习的4种变式之间的负荷-速度关系。
通过递增负荷测试评估30名男性的完整负荷-速度关系，测试从17千克开始，在4种BP变式中逐渐增加到个人的1次重复最大值（1RM）：仅向心卧推、仅向心卧推投掷（BPT）、离心-向心卧推和离心-向心BPT。
观察到4种BP变式的平均速度（MV）与1RM百分比之间存在强且相当线性的关系（合并数据的r＞0.96，个体数据的r＞0.98）。与每种1RM百分比相关的MV在离心-向心技术中显著高于仅向心技术。BP和BPT变式之间唯一显著的差异是，在仅使用向心技术的BPT中，轻至中等负荷（20%-70%1RM）时MV更高。4种BP变式之间的MV显著正相关（r = 0.44-0.76），这表明在一种BP变式中，每种1RM百分比速度较高的受试者在其他3种BP变式中，每种1RM百分比的速度也往往较高。
这些结果突出了为每种BP变式获取特定方程的必要性以及个体负荷-速度曲线的存在。
