Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27599, USA.
Department of Exercise & Sports Science, University of North Carolina, Chapel Hill, NC 27519, USA.
Nutrients. 2023 Apr 20;15(8):1981. doi: 10.3390/nu15081981.
Nutritional strategies are needed to aid people with type 1 diabetes (T1D) in managing glycemia following exercise. Secondary analyses were conducted from a randomized trial of an adaptive behavioral intervention to assess the relationship between post-exercise and daily protein (g/kg) intake on glycemia following moderate-to-vigorous physical activity (MVPA) among adolescents with T1D. Adolescents ( = 112) with T1D, 14.5 (13.8, 15.7) years of age, and 36.6% overweight or obese, provided measures of glycemia using continuous glucose monitoring (percent time above range [TAR, >180 mg/dL], time-in-range [TIR, 70-180 mg/dL], time-below-range [TBR, <70 mg/dL]), self-reported physical activity (previous day physical activity recalls), and 24 h dietary recall data at baseline and 6 months post-intervention. Mixed effects regression models adjusted for design (randomization assignment, study site), demographic, clinical, anthropometric, dietary, physical activity, and timing covariates estimated the association between post-exercise and daily protein intake on TAR, TIR, and TBR from the cessation of MVPA bouts until the following morning. Daily protein intakes of ≥1.2 g/kg/day were associated with 6.9% ( = 0.03) greater TIR and -8.0% ( = 0.02) less TAR following exercise, however, no association was observed between post-exercise protein intake and post-exercise glycemia. Following current sports nutrition guidelines for daily protein intake may promote improved glycemia following exercise among adolescents with T1D.
需要营养策略来帮助 1 型糖尿病（T1D）患者在运动后控制血糖。对一项适应性行为干预的随机试验进行了二次分析，以评估 T1D 青少年中等至剧烈体力活动（MVPA）后运动后和日常蛋白质（g/kg）摄入量与血糖之间的关系。112 名 T1D 青少年（年龄 = 14.5 [13.8, 15.7] 岁，36.6%超重或肥胖）使用连续血糖监测（高于范围的百分比时间 [TAR，>180mg/dL]、时间在范围内 [TIR，70-180mg/dL]、时间低于范围 [TBR，<70mg/dL]）、自我报告的体力活动（前一天体力活动回忆）和 24 小时膳食回忆数据，在基线和干预后 6 个月进行了测量。混合效应回归模型调整了设计（随机分组、研究地点）、人口统计学、临床、人体测量、饮食、体力活动和时间协变量，估计了 MVPA 结束至次日清晨期间运动后和日常蛋白质摄入量与 TAR、TIR 和 TBR 的关联。每日蛋白质摄入量≥1.2g/kg/d 与运动后 TIR 增加 6.9%（=0.03）和 TAR 减少 8.0%（=0.02）相关，但运动后蛋白质摄入量与运动后血糖之间没有关联。遵循当前的运动营养指南中每日蛋白质摄入量可能会促进 T1D 青少年运动后血糖改善。
