Int J Sports Physiol Perform. 2021 May 1;16(5):744-747. doi: 10.1123/ijspp.2020-0838. Epub 2021 Feb 11.
Negative or evenly paced racing strategies often lead to more favorable performance outcomes for endurance athletes. However, casual inspection of race split times and observational studies both indicate that elite triathletes competing in Olympic-distance triathlon typically implement a positive pacing strategy during the last of the 3 disciplines, the 10-km run. To address this apparent contradiction, the authors examined data from 14 International Triathlon Union elite races over 3 consecutive years involving a total of 725 male athletes. Analyses of race results confirm that triathletes typically implement a positive running pace strategy, running the first lap of the standard 4-lap circuit substantially faster than laps 2 (∼7%), 3 (∼9%), and 4 (∼12%). Interestingly, mean running pace in lap 1 had a substantially lower correlation with 10-km run time (r = .82) than both laps 2 and 3. Overall triathlon race performance (ranking) was best associated with run performance (r = .82) compared with the swim and cycle sections. Lower variability in race pace during the 10-km run was also reflective of more successful run times. Given that overall race outcome is mainly explained by the 10-km run performance, with top run performances associated with a more evenly paced strategy, triathletes (and their coaches) should reevaluate their pacing strategy during the run section.
消极或匀速的竞赛策略通常会为耐力运动员带来更有利的表现结果。然而,对比赛分段时间的随意检查和观察性研究都表明,参加奥林匹克距离铁人三项赛的精英铁人三项运动员在最后一项 3 项运动——10 公里跑步中通常采用积极的配速策略。为了解决这一明显的矛盾,作者分析了 3 年内 14 项国际铁人三项联盟精英赛的数据,涉及总共 725 名男性运动员。对比赛结果的分析证实,铁人三项运动员通常采用积极的跑步配速策略,跑完标准 4 圈赛道的第一圈速度明显快于第二圈(约 7%)、第三圈(约 9%)和第四圈(约 12%)。有趣的是,第一圈的平均跑步配速与 10 公里跑步时间的相关性明显低于第二圈和第三圈(r =.82)。与游泳和自行车赛段相比,整体铁人三项赛的表现(排名)与跑步表现的关联度最高(r =.82)。10 公里跑步时比赛配速的变化较小,也反映出跑步时间更成功。鉴于整体比赛结果主要由 10 公里跑步表现决定,而顶级跑步表现与更均匀的配速策略相关,铁人三项运动员(及其教练)应重新评估他们在跑步阶段的配速策略。