Sports Performance Research Institute New Zealand, AUT University, Auckland, New Zealand.
School of Sport, Manukau Institute of Technology, Auckland, New Zealand.
J Sports Sci. 2022 Jul;40(14):1602-1608. doi: 10.1080/02640414.2022.2094561. Epub 2022 Jul 3.
This study examined the relationship between perceived bowling intensity, ball release speed and ground reaction force (measured by peak force, impulse and loading rate) in male pace bowlers. Twenty participants each bowled 36 deliveries, split evenly across three perceived intensity zones: low = 70% of maximum perceived bowling effort, medium = 85%, and high = 100%. Peak force and loading rate were significantly different across the three perceived intensity zones in the horizontal and vertical directions (Cohen's range = 0.14-0.45, p < 0.01). When ball release speed increased, peak force and loading rate also increased in the horizontal and vertical directions (η = 0.04-0.18, p < 0.01). Lastly, bowling at submaximal intensities (i.e., low - medium) was associated with larger decreases in peak horizontal force (7.9-12.3% decrease), impulse (15.8-21.4%) and loading rate (7.4-12.7%) compared to decreases in ball release speed (5.4-8.3%). This may have implications for bowling strategies implemented during training and matches, particularly for preserving energy and reducing injury risk.
本研究旨在探讨男性投球手在感知投球强度、球出手速度和地面反作用力（通过峰值力、冲量和加载率来测量）之间的关系。20 名参与者每人投出 36 球，平均分为三个感知强度区域：低强度区=最大感知投球努力的 70%，中强度区=85%，高强度区=100%。在水平和垂直方向上，三个感知强度区域的峰值力和加载率存在显著差异（Cohen's d 范围为 0.14-0.45，p<0.01）。当球出手速度增加时，水平和垂直方向上的峰值力和加载率也随之增加（η=0.04-0.18，p<0.01）。最后，与球出手速度的降低（5.4-8.3%）相比，投低强度球（即中低强度）时水平方向峰值力（降低 7.9-12.3%）、冲量（降低 15.8-21.4%）和加载率（降低 7.4-12.7%）的降幅更大。这可能对训练和比赛中实施的投球策略有影响，特别是在节省能量和降低受伤风险方面。
