madman
Super Moderator
Effect of acute watermelon juice supplementation on post-submaximal exercise heart rate recovery, blood lactate, blood pressure, blood glucose and muscle soreness in healthy non-athletic men and women
ABSTRACT
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.
* 355 ml watermelon juice provided 780 mg L-citrulline
Conclusion
The significant finding of this study is that an acute single dose of watermelon juice as a pre-exercise supplement prevented increased post-exercise BP in females without altering BP in males. In female subjects, post-exercise SBP and DBP increased significantly from baseline with water, sugar water, and Gatorade, but not with watermelon juice. Watermelon juice did not significantly affect exercise performance, blood lactate levels, or post-exercise muscle soreness in either males or females. These results support the ability of watermelon juice to prevent a post-exercise increase in BP in healthy non-athletic females. Additional research is needed to determine the mechanisms responsible for the influence of sex on the relationship between beverage type and BP.
ABSTRACT
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.
* 355 ml watermelon juice provided 780 mg L-citrulline
Conclusion
The significant finding of this study is that an acute single dose of watermelon juice as a pre-exercise supplement prevented increased post-exercise BP in females without altering BP in males. In female subjects, post-exercise SBP and DBP increased significantly from baseline with water, sugar water, and Gatorade, but not with watermelon juice. Watermelon juice did not significantly affect exercise performance, blood lactate levels, or post-exercise muscle soreness in either males or females. These results support the ability of watermelon juice to prevent a post-exercise increase in BP in healthy non-athletic females. Additional research is needed to determine the mechanisms responsible for the influence of sex on the relationship between beverage type and BP.
