This study explored the impact of different frequencies of knowledge of results (KR) on velocity performance during ballistic training. Fifteen males completed four identical sessions (three sets of six repetitions at 30% one-repetition maximum during the countermovement jump and bench press throw) with the only difference of the KR condition provided: no feedback, velocity feedback after the first half of repetitions of each set (_HalfKR), velocity feedback immediately after each repetition (_ImKR), and feedback of the average velocity of each set (_AvgKR). When compared with the control condition, the _ImKR reported the highest velocity performance (1.9–5.3%), followed by the _HalfKR (1.3–3.6%) and _AvgKR (0.7–4.3%). These results support the verbal provision of velocity performance feedback after every repetition to induce acute improvements in velocity performance.

这项研究探讨了不同频率的结果知识（KR）对弹道训练期间速度表现的影响。15个雄性完成了四个相同的阶段（在反向运动跳跃和卧推期间，三组六个重复，最大重复率为30％），唯一提供的KR条件有所不同：无反馈，上半场重复后的速度反馈每组（_Half KR），每次重复后立即进行速度反馈（_Im KR）和每组平均速度的反馈（_Avg KR）。与控制条件相比，_Im KR的速度性能最高（1.9–5.3％），其次是_Half KR（1.3–3.6％）和_平均KR（0.7–4.3％）。这些结果支持在每次重复之后以口头形式提供速度性能反馈，以引起速度性能的急剧改善。