School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA, USA.
Int J Food Sci Nutr. 2020 Jun;71(4):482-489. doi: 10.1080/09637486.2019.1675604. Epub 2019 Oct 10.
The objective of this study was to determine the effects of a single pre-exercise dose of watermelon juice on submaximal post-exercise heart rate (HR) recovery, blood lactate (BL), blood pressure (BP), blood glucose (BG), and muscle soreness in healthy adults. In a randomised crossover design, 27 healthy non-athletic participants (13 males/14 females) consumed 355 mL of watermelon juice, Gatorade, sugar water, or water. HR and BL were significantly higher post-exercise, and both watermelon juice and sugar water increased postprandial BG. However, there were no significant differences among the supplements in HR recovery, BL, or post-exercise muscle soreness. Watermelon juice prevented increased post-exercise systolic and diastolic BP in females, but not in males. More research is warranted to examine the effect of sex on the efficacy of watermelon consumption for controlling BP.
本研究旨在确定运动前单次摄入西瓜汁对健康成年人亚极量运动后心率（HR）恢复、血乳酸（BL）、血压（BP）、血糖（BG）和肌肉酸痛的影响。采用随机交叉设计，27 名健康非运动员参与者（男性 13 名/女性 14 名）分别饮用 355 毫升西瓜汁、佳得乐、糖水或水。运动后 HR 和 BL 显著升高，西瓜汁和糖水均增加餐后 BG。然而，在 HR 恢复、BL 或运动后肌肉酸痛方面，各补充剂之间无显著差异。西瓜汁可预防女性运动后收缩压和舒张压升高，但对男性无此作用。需要进一步研究以探讨性别对西瓜摄入控制 BP 效果的影响。
