Exercise Research Laboratory, Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
Exercise Research Laboratory, Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
J Bodyw Mov Ther. 2020 Jan;24(1):206-211. doi: 10.1016/j.jbmt.2019.05.019. Epub 2019 May 24.
Understanding the recovery in response to different sprint protocols is important for optimizing neuromuscular gains and organizing training sessions in sports. The current study aimed to investigate acute neuromuscular changes following a moderate volume of sprint protocols with and without change-of-direction.
26 well-trained male collegiate athletes from different sports were randomly allocated into straight-line group (SLG) or change-of-direction group (CODG). The protocols were 1 × 15 repetitions of 20-meter sprints in line (SLG) or with two changes in each repetition (CODG). Knee extension maximal and explosive strength, jump performance, serum creatine kinase, and quadriceps and hamstrings echo intensity were collected pre-, post- 0, 24, 48, and 72 h post-exercise.
There were no significant changes in any of the variables at any time point after the exercise protocols in comparison with pre-exercise values (p > 0.05).
The present study suggests that sprint training with moderate volume with or without change of direction does not induce neuromuscular or physiological changes during 72 h post-exercise. This information is especially important for sports staff in order to optimize training prescription and frequency.
了解不同冲刺方案的恢复情况对于优化神经肌肉增益和组织运动训练非常重要。本研究旨在调查有向和无向改变的中等量冲刺方案后急性神经肌肉变化。
26 名来自不同运动项目的训练有素的男性大学生运动员被随机分配到直线组（SLG）或变向组（CODG）。方案为 1×15 次 20 米直线冲刺（SLG）或每次重复两次变向（CODG）。在运动前、运动后 0、24、48 和 72 小时收集膝关节伸展最大力量和爆发力、跳跃表现、血清肌酸激酶以及股四头肌和腘绳肌回声强度。
与运动前相比，运动后任何时间点的任何变量均无显著变化（p＞0.05）。
本研究表明，有向和无向的中等量冲刺训练不会在运动后 72 小时内引起神经肌肉或生理变化。这些信息对于体育工作人员来说尤为重要，以便优化训练方案和频率。
