Knechtle Beat, Cuk Ivan, Andrade Marilia Santos, Nikolaidis Pantelis T, Weiss Katja, Forte Pedro, Thuany Mabliny
Medbase St. Gallen Am Vadianplatz, St. Gallen, Switzerland.
Institute of Primary Care, University Hospital Zurich, Zurich, Switzerland.
Front Sports Act Living. 2024 Sep 16;6:1155844. doi: 10.3389/fspor.2024.1155844. eCollection 2024.
Triathletes are pushing their limits in multi-stage Ironman-distance triathlons. In the present case study, we investigated the pacing during 20, 40, and 60 Ironman-distance triathlons in 20, 40, and 60 days, respectively, of one professional IRONMAN® triathlete.
Event 1 (20 Ironman-distance triathlons in 20 days), Event 2 (40 Ironman-distance triathlons in 40 days), and Event 3 (60 Ironman-distance triathlons in 60 days) were analyzed by discipline (swimming, cycling, running, and overall event time), by Deca intervals (10 days of consecutive Ironman-distance triathlons) and additional data (sleep duration, body mass, heart rate in cycling and running). To test differences between Events and Deca intervals within the same discipline, -tests (2 groups) or one-way ANOVAs (3 or more groups) were used.
Swimming splits were fastest in Event 1, () cycling and running splits were fastest in both Event 2 and 3, () overall speed was fastest in Event 3, () sleep duration increased during Event 2 but decreased in Event 3, () body mass decreased in Event 2, but increased in Event 3 and () heart rate during cycling was similar in both Event 2 and 3. In contrast, heart rate during running was greater in Event 3.
In a professional IRONMAN® triathlete finishing 20, 40, and 60 Ironman-distance triathlons in 20, 40, and 60 days, respectively, split performances and both anthropometrical and physiological changes such as body mass and heart rate differed depending upon the duration of the events.
铁人三项运动员在多阶段的铁人三项赛中不断挑战自身极限。在本案例研究中，我们分别对一名职业IRONMAN®铁人三项运动员在20天内完成20次、40天内完成40次以及60天内完成60次铁人三项赛的配速情况进行了调查。
对赛事1（20天内完成20次铁人三项赛）、赛事2（40天内完成40次铁人三项赛）和赛事3（60天内完成60次铁人三项赛）进行了分析，分析内容包括项目（游泳、自行车、跑步以及总赛事时间）、每10天连续进行铁人三项赛的间隔期（十项间隔）以及其他数据（睡眠时间、体重、自行车骑行和跑步时的心率）。为了测试同一项目在不同赛事和十项间隔之间的差异，采用了t检验（两组）或单因素方差分析（三组或更多组）。
赛事1的游泳分段成绩最快（），赛事2和赛事3的自行车骑行和跑步分段成绩最快（），赛事3的总体速度最快（），赛事2期间睡眠时间增加，但赛事3期间睡眠时间减少（），赛事2期间体重下降，但赛事3期间体重增加（），赛事2和赛事3自行车骑行时的心率相似。相比之下，赛事3跑步时的心率更高。
对于一名分别在20天、40天和60天内完成20次、40次和60次铁人三项赛的职业IRONMAN®铁人三项运动员而言，其分段成绩以及体重和心率等人体测量和生理变化因赛事持续时间的不同而有所差异。
