Fleming Jeffrey, Perrett Corey, Melchi Onesim, McClelland Jodie, Middleton Kane
Sport, Performance, and Nutrition Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC 3086, Australia.
Kansas City Royals, Kansas City, MO 64129, USA.
Sports (Basel). 2024 Nov 22;12(12):316. doi: 10.3390/sports12120316.
Ground reaction forces (GRFs) are known to be high during front foot contact of fast bowling deliveries in cricket. There is a lack of published data on the GRFs during follow through foot contacts. The aim of this study was to quantify and compare peak GRFs and impulse of the delivery stride and the follow through of fast bowling deliveries. Ten trained male fast bowlers (ball release speed mean ± SD; 32.6 ± 2.3 m/s) competing in the Men's Victorian Premier League participated in the study. Peak GRF and impulse data were collected using in-ground force plates in a laboratory setting. Linear mixed modelling of GRFs and impulse showed a significant effect of foot strike ( < 0.001). Front foot contact had the greatest magnitude of peak vertical GRF (5.569 ± 0.334 BW) but was not significantly greater than back foot recontact (4.471 ± 0.285 BW) ( = 0.07). Front foot impact had the greatest vertical impulse (0.408 ± 0.018 BW·s) but was similar to back foot (0.377 ± 0.012 BW·s) and front foot (0.368 ± 0.006 BW·s) recontacts ( = 0.070 to 0.928). The high GRF and impulse during the follow through highlights the need for further kinetic and kinematic research on this phase of the fast bowling delivery.
众所周知，在板球快速投球的前脚触地过程中，地面反作用力（GRF）很高。目前缺乏关于随挥阶段前脚触地时GRF的已发表数据。本研究的目的是量化和比较快速投球助跑阶段和随挥阶段的峰值GRF及冲量。十名参加男子维多利亚超级联赛的训练有素的男性快速投球手（投球释放速度平均值±标准差；32.6±2.3米/秒）参与了本研究。在实验室环境中，使用地面测力板收集峰值GRF和冲量数据。对GRF和冲量进行线性混合建模显示，脚着地有显著影响（<0.001）。前脚触地时垂直方向峰值GRF的大小最大（5.569±0.334体重），但并不显著大于后脚再次触地时的（4.471±0.285体重）（=0.07）。前脚着地时垂直方向冲量最大（0.408±0.018体重·秒），但与后脚（0.377±0.012体重·秒）和前脚再次触地时的冲量（0.368±0.006体重·秒）相似（=0.070至0.928）。随挥阶段较高的GRF和冲量凸显了对快速投球这一阶段进行进一步动力学和运动学研究的必要性。
