L-tyrosine Ameliorates Some Effects Of Lower Body Negative Pressure Stress
| Effect | Increase |
| Values | Figure 1 |
| Trial Design | Non-controlled trial |
| Trial Length | 24 hours |
| Number of Subjects | 20 |
| Sex | Male |
In a randomized, double-blind, placebo-controlled crossover trial, 20 participants took 100 mg/kg of tyrosine or placebo before they were subjected to lower body negative pressure stress and underwent physical testing.
Mean pulse pressure was greater when taking tyrosine, though there wasn't a difference in the decline during lower body negative pressure stress. The reduction in heart rate was greater when taking tyrosine. Cortisol levels increased more when taking tyrosine but the difference wasn't statistically significant.
There wasn't a statistically significant difference between treatments for the Profile Of Mood States. There wasn't a statistically significant difference between treatments for the Dual Task. There was a statistically significant increase in latency on the four-choice reaction time test.
