Noorbergen Olaf S, Konings Marco J, Micklewright Dominic, Elferink-Gemser Marije T, Hettinga Florentina J
Int J Sports Physiol Perform. 2016 Sep;11(6):742-748. doi: 10.1123/ijspp.2015-0384. Epub 2016 Aug 24.
To explore pacing behavior and tactical positioning during the shorter 500- and 1000-m short-track competitions.
Lap times and intermediate rankings of elite 500- and 1000-m short-track-skating competitors were collected over the 2012-13 season. First, lap times were analyzed using a MANOVA, and for each lap, differences between sex, race type, final ranking, and stage of competition were determined. Second, Kendall tau-b correlations were used to assess relationships between intermediate and final rankings. In addition, intermediate rankings of the winner of each race were examined.
Top-placed athletes appeared faster than bottom-placed athletes in every lap in the 500-m, while in the 1000-m no differences were found until the final 4 laps (P < .05). Correlations between intermediate and final rankings were already high at the beginning stages of the 50-m (lap 1: r = .59) but not for the 1000-m (lap 1: r = .21).
Although 500- and 1000-m short-track races are both relatively short, fundamental differences in pacing behavior and tactical positioning were found. A fast-start strategy seems to be optimal for 500-m races, while the crucial segment in 1000-m races seems to be from the 6th lap to the finish line (ie, after ± 650 m). These findings provide evidence to suggest that athletes balance between choosing an energetically optimal profile and the tactical and positional benefits that play a role when riding against an opponent, as well as contributing to developing novel insights in exploring athletic behavior when racing against opponents.
探讨在较短距离的500米和1000米短道速滑比赛中的节奏控制行为和战术定位。
收集了2012 - 13赛季精英500米和1000米短道速滑选手的每圈用时和中间排名。首先,使用多变量方差分析(MANOVA)分析每圈用时,并确定每圈在性别、比赛类型、最终排名和比赛阶段之间的差异。其次,使用肯德尔tau - b相关性来评估中间排名和最终排名之间的关系。此外,还研究了每场比赛获胜者的中间排名。
在500米比赛中,排名靠前的运动员在每一圈都比排名靠后的运动员速度快,而在1000米比赛中,直到最后4圈才发现差异(P <.05)。500米比赛在开始阶段中间排名和最终排名之间的相关性就很高(第1圈:r =.59),但1000米比赛并非如此(第1圈:r =.21)。
尽管500米和1000米短道速滑比赛距离都相对较短,但在节奏控制行为和战术定位上发现了根本差异。快速起跑策略似乎对500米比赛最为有利,而1000米比赛的关键阶段似乎是从第6圈到终点线(即大约650米之后)。这些发现为运动员在选择能量最优状态与对抗对手时所起作用的战术和位置优势之间进行平衡提供了证据,同时也有助于在探索与对手比赛时的运动行为方面产生新的见解。