Research Unit, Sportive Performance and Physical Rehabilitation, High Institute of Sports and Physical Education of Kef, University of Jendouba, Kef 7100, Tunisia.
Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Bizerte 7021, Tunisia.
Int J Environ Res Public Health. 2020 Nov 6;17(21):8214. doi: 10.3390/ijerph17218214.
Multidirectional repeated sprints with quick changes-of-direction (CoD) are considered a key performance determinant in basketball. The objective of this study was to investigate the effects of a 12-week CoD sprint training program compared to regular basketball training on selected measures of physical fitness and physiological adaptations in male basketball players. Sixteen professional basketball players were randomly assigned to an intervention group (INT = 8) or an active control group (CON = 8). INT completed a 12-week CoD sprint training program with two sessions per week while CON continued their regular training. Training volume was similar between groups. Before and after the intervention, the two groups were evaluated for the repeated sprint ability test with CoD (IRSA), the squat jump (SJ) and countermovement jump (CMJ) test, the five time-jump test (FJT) and change of direction -test. Blood samples were taken before the beginning of the experimental protocol, after 4, 8 and 12 weeks to monitor the testosterone/cortisol ratio (T/C). For -test, post-hoc tests revealed significant pre-to-post improvements for INT (3.4%; = 0.001, ES = 0.91). For CMJ, post-hoc tests revealed a significant pre-to-post decrease for INT (-11.6%; = 0.001, ES = 0.94), and a significant improvement for CON (4.96%; = 0.014, ES = 0.60). For T/C ratio, post-hoc tests revealed a significant decrease after 12 weeks of training for INT (52.3%; < 0.001; ES = 0.63). In conclusion, twelve weeks of CoD sprint training enhanced CoD performance but negatively affected vertical jump capacity in male basketball players. T/C ratio indicated that the physiological demands associated with INT were well-balanced.
多向重复冲刺并快速改变方向（COD）被认为是篮球的关键表现决定因素。本研究的目的是调查与常规篮球训练相比，12 周 COD 冲刺训练计划对男性篮球运动员身体适应和生理适应的影响。16 名职业篮球运动员被随机分配到干预组（INT=8）或主动对照组（CON=8）。INT 每周完成两次 12 周的 COD 冲刺训练计划，而 CON 继续进行常规训练。两组的训练量相似。干预前后，两组均进行 COD 重复冲刺能力测试（IRSA）、深蹲跳（SJ）和反向跳（CMJ）测试、五次跳跃测试（FJT）和变向测试。在实验方案开始前、第 4、8 和 12 周后采集血液样本，以监测睾酮/皮质醇比值（T/C）。对于 -检验，事后检验显示 INT 有显著的前后改善（3.4%； = 0.001，ES = 0.91）。对于 CMJ，事后检验显示 INT 有显著的前后下降（-11.6%； = 0.001，ES = 0.94），而 CON 有显著的改善（4.96%； = 0.014，ES = 0.60）。对于 T/C 比值，事后检验显示 12 周训练后 INT 显著下降（52.3%；<0.001；ES = 0.63）。综上所述，12 周的 COD 冲刺训练提高了 COD 表现，但对男性篮球运动员的垂直跳跃能力产生了负面影响。T/C 比值表明，INT 相关的生理需求得到了很好的平衡。
