School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Bern University Hospital, University of Bern, Bern, Switzerland.
Diabetes Care. 2020 May;43(5):1142-1145. doi: 10.2337/dc19-2302. Epub 2020 Mar 16.
To investigate factors related to glycemic management among members of a professional cycling team with type 1 diabetes over a 7-day Union Cycliste Internationale World Tour stage race.
An observational evaluation of possible factors related to glycemic management and performance in six male professional cyclists with type 1 diabetes (HbA 6.4 ± 0.6%) during the 2019 Tour of California.
In-ride time spent in euglycemia (3.9-10.0 mmol/L glucose) was 63 ± 11%, with a low percentage of time spent in level 1 (3.0-3.9 mmol/L; 0 ± 1% of time) and level 2 (<3.0 mmol/L; 0 ± 0% of time) hypoglycemia over the 7-day race. Riders spent 25 ± 9% of time in level 1 (10.1-13.9 mmol/L) and 11 ± 9% in level 2 (>13.9 mmol/L) hyperglycemia during races. Bolus insulin use was uncommon during races, despite high carbohydrate intake (76 ± 23 g ⋅ h). Overnight, the riders spent progressively more time in hypoglycemia from day 1 (6 ± 12% in level 1 and 0 ± 0% in level 2) to day 7 (12 ± 12% in level 1 and 2 ± 4% in level 2) (χ[1] > 4.78, < 0.05).
Professional cyclists with type 1 diabetes have excellent in-race glycemia, but significant hypoglycemia during recovery overnight, throughout a 7-day stage race.
在为期 7 天的国际自行车联盟世界巡回赛阶段比赛中，研究与 1 型糖尿病职业自行车队队员血糖管理相关的因素。
对 6 名男性 1 型糖尿病职业自行车运动员（HbA 6.4 ± 0.6%）在 2019 年环加州自行车赛期间的血糖管理和表现相关的可能因素进行观察性评估。
骑行过程中血糖处于正常范围（3.9-10.0 mmol/L 葡萄糖）的时间为 63 ± 11%，1 级（3.0-3.9 mmol/L；0 ± 1%的时间）和 2 级（<3.0 mmol/L；0 ± 0%的时间）低血糖的时间比例较低，7 天的比赛中。车手在比赛中花费 25 ± 9%的时间处于 1 级（10.1-13.9 mmol/L）和 11 ± 9%的时间处于 2 级（>13.9 mmol/L）高血糖。尽管碳水化合物摄入量较高（76 ± 23 g ⋅ h），但在比赛期间很少使用胰岛素。夜间，骑手的血糖逐渐从第 1 天（1 级 6 ± 12%，2 级 0 ± 0%）到第 7 天（1 级 12 ± 12%，2 级 2 ± 4%）出现更多时间的低血糖（χ[1] > 4.78， < 0.05）。
1 型糖尿病职业自行车运动员在比赛中血糖控制良好，但在为期 7 天的阶段比赛中，夜间恢复期间出现明显的低血糖。
