Institute of Sport Sciences, Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland.
Int J Environ Res Public Health. 2021 Apr 6;18(7):3818. doi: 10.3390/ijerph18073818.
The purpose of the present study was to examine the acute effects of the bench press exercise with predetermined velocity loss percentage on subsequent bench press throw (BPT) performance with raised legs or feet on the floor among disabled, sitting volleyball players. Twelve elite sitting volleyball athletes (age = 33 ± 9 years; body mass = 84.7 ± 14.7 kg; relative bench press maximum strength = 1.0 ± 0.3 kg/body mass) took part in this study. The experiment was performed following a randomized crossover design, where each participant performed a single set of bench press with a 60% one-repetition maximum (1RM) to a 10% decrease of mean bar velocity as a conditioning activity (CA). The BPT with a 60%1RM was performed to assess changes in peak power (PP), peak velocity (PV) before and after the CA. The differences between analyzed variables before and after the CA were verified using two-way repeated-measures ANOVA (condition × time; 2 × 2). The ANOVA showed a significant main effect of time for peak bar velocity ( = 0.03; η = 0.312) and peak power output ( = 0.037; η = 0.294). The post hoc comparison showed a significant increase in post-CA peak bar velocity and peak power for raised legs condition in comparison with pre-CA value ( = 0.02, = 0.041, respectively). The present study showed that the subsequent BPT performed with raised legs could be enhanced by the bench press with a 60% 1RM to a 10% mean bar velocity decrease as a CA among disabled sitting volleyball players. Therefore, athletes and coaches can consider performing a bench press throw with raised legs without compromising performance.
本研究的目的是检验在残疾坐式排球运动员中，以预定速度损失百分比进行卧推练习对随后进行的腿部或脚部抬起放在地板上的卧推投掷（BPT）表现的急性影响。12 名精英坐式排球运动员（年龄=33±9 岁；体重=84.7±14.7kg；相对卧推最大力量=1.0±0.3kg/体重）参与了这项研究。实验采用随机交叉设计进行，每位参与者以 60%的 1 次重复最大重量（1RM）进行一次卧推，达到平均杆速度降低 10%作为调节活动（CA）。进行 60%1RM 的 BPT 以评估峰值功率（PP）和 CA 前后的峰值速度（PV）的变化。使用双向重复测量方差分析（条件×时间；2×2）验证 CA 前后分析变量之间的差异。方差分析显示，峰值杆速度（=0.03；η=0.312）和峰值功率输出（=0.037；η=0.294）的时间主效应具有统计学意义。事后比较显示，与 CA 前相比，腿部抬起条件下 CA 后的峰值杆速度和峰值功率均显著增加（=0.02，=0.041）。本研究表明，在残疾坐式排球运动员中，以 60%1RM 进行达到平均杆速度降低 10%的卧推作为 CA，随后进行腿部抬起的 BPT 可以得到增强。因此，运动员和教练可以考虑进行腿部抬起的卧推投掷，而不会影响表现。
