Abstract：
This study aimed to compare sprint, jump performance, and sprint mechanical variables between endurance-adapted milers (EAM, specialized in 1500-3000-m) and speed-adapted milers (SAM, specialized in 800-1500 m) and to examine the relationships between maximal sprint speed (MSS), anaerobic speed reserve (ASR), sprint, jump performance, and sprint mechanical characteristics of elite middle-distance runners. Fifteen participants (8 EAM; 7 SAM) were evaluated to obtain their maximal aerobic speed, sprint mechanical characteristics (force-velocity profile and kinematic variables), jump, and sprint performance. SAM displayed greater MSS, ASR, horizontal jump, sprint performance, and mechanical ability than EAM (p < 0.05). SAM also showed higher stiffness in the 40-m sprint (p = 0.026) and a higher ratio of horizontal-to-resultant force (RF) at 10 m (p = 0.003) and RFpeak (p = 0.024). MSS and ASR correlated with horizontal (r = 0.76) and vertical (r = 0.64) jumps, all sprint split times (r ≤ -0.85), stiffness (r = 0.86), and mechanical characteristics (r ≥ 0.56) during the 100-m sprint, and physical qualities during acceleration (r ≥ 0.66) and sprint mechanical effectiveness from the force-velocity profile (r ≥ 0.69). Season-best times in the 800 m were significantly correlated with MSS (r = -0.86). Sprint ability has a crucial relevance in middle-distance runners\' performance, especially for SAM.
摘要：
本研究旨在比较冲刺，跳跃表演,和耐力适应milers之间的冲刺机械变量(EAM，专门从事1500-3000-m)和适应速度的米勒(SAM，专门从事800-1500m)，并检查最大冲刺速度(MSS)之间的关系，无氧速度储备(ASR)，sprint,跳跃表演,优秀中长跑运动员的短跑力学特性。15名参与者（8EAM;7SAM）进行了评估，以获得他们的最大有氧速度，短跑机械特性(力-速度曲线和运动学变量)，跳,和冲刺性能。SAM显示更大的MSS，ASR,水平跳跃,sprint性能,和机械能力优于EAM（p<0.05）。SAM还在40米短跑（p=0.026）中显示出更高的刚度，在10米（p=0.003）和RFpeak（p=0.024）处显示出更高的水平与合力（RF）之比。MSS和ASR与水平(r=0.76)和垂直(r=0.64)跳跃相关，所有sprint分割时间（r≤-0.85），刚度（r=0.86），和100米冲刺期间的机械特性(r≥0.56)，以及加速过程中的物理质量（r≥0.66）和力-速度曲线中的冲刺机械有效性（r≥0.69）。800m的季节最佳时间与MSS显着相关（r=-0.86）。短跑能力与中长跑运动员的表现有着至关重要的关系，尤其是对于SAM。
