Faculty of Sport, Health and Applied Science, St Mary's University, Twickenham, London, UK.
England and Wales Cricket Board, UK.
J Sci Med Sport. 2021 May;24(5):505-510. doi: 10.1016/j.jsams.2020.11.012. Epub 2020 Nov 28.
To quantify and compare the match demands and variability of international One-Day (ODI) with Twenty20 (T20) cricket matches and to compare ODI match demands when competing home and away.
Single cohort, longitudinal observation.
Thirteen international male seam bowlers across 204matches (ODI=160; T20=44) were investigated over five-years (2015-2019). Using global positioning sensors and accelerometers, physical demands were quantified using distance covered at different velocities and the number of entries into high and low intensity acceleration and deceleration bands. Variability was quantified using coefficient of variation (CV) and smallest worthwhile change.
Significantly greater (p<0.05) match demands were found for all physical variables relative to minutes played for T20 against ODI matches, except for distance covered 20-25kmh which was greater for ODI. Distance covered between 0-7km∙h showed no significance difference (p=0.60). The number of moderate decelerations (2-4m∙s) were greater (p=0.04) away compared to home in ODI. All other variables showed no significance. Relative to minutes played, decelerations ≤4m∙s (within-player ODI CV=75.5%. T20=72.0%) accelerations >4m∙s (within-player ODI CV=79.2%. T20 CV=77.2%. Between-player ODI CV=84.7%. T20=38.8%) and distance covered >25kmh (within-player ODI CV=65.5%. T20=64.1%) showed the greatest variability.
Players are exposed to different physical demands in ODI Vs T20 matches, but not for home Vs away ODI matches. Practitioners should be aware of the large variability in high-speed/intensity accelerations and decelerations across matches.
量化和比较国际单日（ODI）和 20 Twenty（T20）板球比赛的匹配需求和可变性，并比较主场和客场比赛时 ODI 比赛的需求。
单队列，纵向观察。
对 13 名国际男性缝线投球手在 204 场比赛（ODI=160；T20=44）中进行了为期五年（2015-2019 年）的研究。使用全球定位传感器和加速度计，通过不同速度覆盖的距离以及进入高强度加速和减速带的次数来量化身体需求。使用变异系数（CV）和最小有意义变化来量化可变性。
与 T20 相比，所有物理变量的比赛需求相对于 ODI 比赛的比赛时间都有显著增加（p<0.05），除了 20-25kmh 之间的距离，ODI 比赛的距离更大。0-7km∙h 之间的距离没有显著性差异（p=0.60）。ODI 比赛中，客场的中等减速次数（2-4m∙s）多于主场（p=0.04）。所有其他变量均无显著性差异。相对于比赛时间，减速≤4m∙s（个体内 ODI CV=75.5%. T20=72.0%）加速度>4m∙s（个体内 ODI CV=79.2%. T20 CV=77.2%. 个体间 ODI CV=84.7%. T20=38.8%）和距离覆盖>25kmh（个体内 ODI CV=65.5%. T20=64.1%）显示出最大的可变性。
ODI 与 T20 比赛中，球员面临不同的身体需求，但主场与客场 ODI 比赛则不然。从业者应注意到比赛中高强度加速和减速的巨大变异性。
