School of Exercise and Nutritional Sciences, San Diego State University. San Diego, CA, USA.
College of Health Solutions, Arizona State University. Tempe, AZ, USA.
J Sports Sci Med. 2018 Nov 20;17(4):680-685. eCollection 2018 Dec.
Investigate the effects of short duration stair climbing/descending at a self-selected pace on post-prandial glucose responses in adults. Thirty participants (10 female) completed 4 oral glucose tolerance tests on separate days. Following glucose consumption, participants underwent seated rest (control) or walked up/down 21 stairs at a self-selected comfortable pace for 10, 3, and 1min in randomized order. Blood glucose was measured by capillary sampling from finger sticks every 15min until values for all trials converged. Area under the curve (AUC) was calculated by trapezoidal rule. In addition, cardiometabolic measurements were taken during stair exercise with a mobile metabolic cart. Results are presented as mean (SD) unless stated otherwise. All stair-climbing trials reduced peak (30min) postprandial blood glucose levels compared to the control [(1 min = 12(31), p = 0.026; 3 min = -15(25), p = 0.003; 10 min = 35(32) mg/dL, p < 0.001]. At 45min, there were significant reductions only for the 3 and 10 min trials [13(29) and 23(31) mg/dL, p = 0.023 and < 0.001 respectively], but not the 1 min trial [6(33) mg/dL, p = 0.317]. There were significant differences in AUC compared to the control only for the 3 and 10min trials [502 (1141) and 866 (1123) mg/dL·min, p = 0.023 and < 0.000] but not for the 1min trial [353 (1265) mg/dL·min, p = 0.110]. Median (interquartile range) RPEs reported for the 1, 3, and 10min trials were 1.0 (1.5), 2.0(2), and 3.0 (2.0) respectively, while VO was n/a, 54(12), and 59(13)% of peak, respectively. Total metabolic cost was 1.4 (0.5), 4.0 (1.0), and 11.9 (2.1) L O, respectively. A single 1min bout of low-moderate intensity stair stepping can significantly lower peak glucose concentration, with longer bouts being more effective.
研究在自我选择的速度下短时间上下楼梯对成年人餐后血糖反应的影响。30 名参与者（10 名女性）在不同的日子里完成了 4 次口服葡萄糖耐量试验。葡萄糖摄入后，参与者随机进行坐姿休息（对照）或以自我选择的舒适速度上下 21 级楼梯，每次 10、3 和 1 分钟。通过毛细血管采样从手指刺血来测量血糖，直到所有试验的数值收敛。曲线下面积（AUC）通过梯形规则计算。此外，在使用移动代谢车进行楼梯运动时，还进行了心脏代谢测量。结果以平均值（SD）表示，除非另有说明。所有爬楼梯试验均降低了与对照相比的餐后血糖峰值（30 分钟）[1 分钟=12（31），p=0.026；3 分钟=-15（25），p=0.003；10 分钟=35（32）mg/dL，p<0.001]。45 分钟时，仅 3 分钟和 10 分钟试验有显著降低[13（29）和 23（31）mg/dL，p=0.023 和<0.001]，而 1 分钟试验没有显著降低[6（33）mg/dL，p=0.317]。与对照相比，仅在 3 分钟和 10 分钟试验中 AUC 有显著差异[502（1141）和 866（1123）mg/dL·min，p=0.023 和<0.000]，而 1 分钟试验没有显著差异[353（1265）mg/dL·min，p=0.110]。1、3、10 分钟试验报告的中位数（四分位间距）RPE 分别为 1.0（1.5）、2.0（2）和 3.0（2.0），而 VO 分别为 n/a、54（12）和 59（13）%的峰值，分别为。总代谢成本分别为 1.4（0.5）、4.0（1.0）和 11.9（2.1）LO。单次 1 分钟的低强度楼梯踏步可以显著降低血糖峰值，而更长时间的踏步更为有效。
