Applied Sport, Technology, Exercise and Medicine Research Centre (A-STEM), Swansea University, Swansea, UK.
Team Novo Nordisk Professional Cycling Team, Atlanta, GA, USA.
J Sports Sci. 2022 Sep;40(17):1912-1918. doi: 10.1080/02640414.2022.2118944. Epub 2022 Oct 19.
This study sought to detail and compare the in-ride nutritional practices of a group of professional cyclists with type 1 diabetes (T1D) under training and racing conditions. We observed seven male professional road cyclists with T1D (Age: 28 ± 4 years, HbA: 6.4 ± 0.4% [46 ± 4 mmol.mol], VO: 73.9 ± 4.3 ml.kg .min) during pre-season training and during a multi-stage road cycling race (Tour of Slovenia). In-ride nutritional, interstitial glucose, and performance variables were quantified and compared between the two events. The in-ride energy intake was similar between training and racing conditions ( = 0.909), with carbohydrates being the major source of fuel in both events during exercise at a rate of 41.9 ± 6.8 g.h and 45.4 ± 15.5 g.h ( = 0.548), respectively. Protein consumption was higher during training (2.6 ± 0.6 g.h) than race rides (1.9 ± 0.9 g.h; = 0.051). A similar amount of time was spent within the euglycaemic range (≥70-≤180 mg.dL): training 77.1 ± 32.8% racing 73.4 ± 3.9%; = 0.818. These data provide new information on the in-ride nutritional intake in professional cyclists with T1D during different stages of the competitive season.
本研究旨在详细描述和比较一组在训练和比赛条件下患有 1 型糖尿病（T1D）的职业自行车运动员的骑行过程中的营养摄入情况。我们观察了 7 名患有 T1D 的男性职业公路自行车运动员（年龄：28 ± 4 岁，HbA：6.4 ± 0.4%[46 ± 4 mmol/mol]，VO：73.9 ± 4.3 ml.kg.min），他们在赛季前的训练期间和多阶段公路自行车比赛（斯洛文尼亚巡回赛）期间进行了骑行。在这两个事件中，对骑行过程中的营养摄入、间质葡萄糖和性能变量进行了量化和比较。骑行过程中的能量摄入在训练和比赛条件下相似（ = 0.909），碳水化合物是两个事件中运动时的主要燃料来源，摄入率分别为 41.9 ± 6.8 g.h 和 45.4 ± 15.5 g.h（ = 0.548）。在训练期间（2.6 ± 0.6 g.h），蛋白质的摄入量高于比赛期间（1.9 ± 0.9 g.h； = 0.051）。在血糖正常范围内（≥70-≤180 mg.dL）花费的时间相似：训练 77.1 ± 32.8%，比赛 73.4 ± 3.9%； = 0.818。这些数据提供了关于在竞争赛季的不同阶段患有 T1D 的职业自行车运动员在骑行过程中的营养摄入的新信息。
