Department of Kinesiology, University of New Hampshire, Durham, NH, USA.
The Alpine Clinic, Plymouth, NH, USA.
J Sports Sci. 2024 Apr;42(8):728-736. doi: 10.1080/02640414.2024.2363688. Epub 2024 Jun 10.
We investigated whether post-meal walking (PMW) improved post-prandial glucose and 24h glucose control under free-living conditions among physically inactive young women.
Young women (Age: 20±1years; percent body fat: 28.2 ± 12%; BMI: 23.8 ± 4.2kg·m-1) completed a randomised crossover study to assess if PMW confers benefit. On the PMW day, women completed three bouts of brisk walks, and on the Control day they were instructed to follow normal habitual activities. Continuous glucose monitors captured post-prandial and 24h glucose, and physical activity monitors tracked physical activity throughout the study.
PMW walking increased total daily step count (Control = 9,159 ± 2,962 steps vs. PMW = 14,611±3,891 steps, p<0.001) and activity scores (Control=33.87±1.16 METs·h vs. PMW = 36.11±1.58 METs·h, p < 0.001). PMW led to lower 3h average post-prandial glucose (main effect of condition, p=0.011) and 3h post-prandial area under curve glucose responses (main effect of condition, p = 0.027) compared to the control condition. Post hoc analysis revealed the largest decline occurred after dinner (3h average glucose Control = 7.55±1.21 mmol/L vs. PMW = 6.71 ± 0.80mmol/L, p = 0.039), when insulin sensitivity is typically diminished. Despite improvements in post-prandial glucose control, this did not translate to improvements in 24h glucose control (p > 0.05).
Physically inactive and metabolically healthy young women, PMW improves post-prandial glucose but not 24h glucose control.
研究在自由生活条件下，餐后散步（PMW）是否能改善身体不活跃的年轻女性的餐后血糖和 24 小时血糖控制。
年轻女性（年龄：20±1 岁；体脂百分比：28.2±12%；BMI：23.8±4.2kg·m-1）完成了一项随机交叉研究，以评估 PMW 是否有益。在 PMW 日，女性进行了三次快步走，而在对照日，她们被指示遵循正常的习惯性活动。连续血糖监测仪监测餐后和 24 小时血糖，活动监测器在整个研究过程中监测身体活动。
PMW 步行增加了总日常步数（对照=9159±2962 步 vs. PMW=14611±3891 步，p<0.001）和活动得分（对照=33.87±1.16 METs·h vs. PMW=36.11±1.58 METs·h，p<0.001）。与对照条件相比，PMW 导致餐后 3 小时平均血糖（条件的主要影响，p=0.011）和餐后 3 小时血糖曲线下面积（条件的主要影响，p=0.027）降低。事后分析显示，晚餐后下降幅度最大（3 小时平均血糖对照=7.55±1.21mmol/L vs. PMW=6.71±0.80mmol/L，p=0.039），此时胰岛素敏感性通常会降低。尽管餐后血糖控制有所改善，但这并没有转化为 24 小时血糖控制的改善（p>0.05）。
身体不活跃和代谢健康的年轻女性，PMW 可改善餐后血糖，但不能改善 24 小时血糖控制。
