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J Int Soc Sports Nutr. 2013 May 26;10(1):28. doi: 10.1186/1550-2783-10-28.
Eurycoma longifolia is a medicinal plant commonly called tongkat ali (TA) and "Malaysian ginseng." TA roots are a traditional "anti-aging" remedy and modern supplements are intended to improve libido, energy, sports performance and weight loss. Previous studies have shown properly-standardized TA to stimulate release of free testosterone, improve sex drive, reduce fatigue, and improve well-being.
We assessed stress hormones and mood state in 63 subjects (32 men and 31 women) screened for moderate stress and supplemented with a standardized hot-water extract of TA root (TA) or Placebo (PL) for 4 weeks. Analysis of variance (ANOVA) with significance set at p < 0.05 was used to determine differences between groups.
Significant improvements were found in the TA group for Tension (-11%), Anger (-12%), and Confusion (-15%). Stress hormone profile (salivary cortisol and testosterone) was significantly improved by TA supplementation, with reduced cortisol exposure (-16%) and increased testosterone status (+37%).
These results indicate that daily supplementation with tongkat ali root extract improves stress hormone profile and certain mood state parameters, suggesting that this "ancient" remedy may be an effective approach to shielding the body from the detrimental effects of "modern" chronic stress, which may include general day-to-day stress, as well as the stress of dieting, sleep deprivation, and exercise training.
东革阿里是一种药用植物，通常被称为 tongkat ali（TA）和“马来西亚人参”。TA 根是一种传统的“抗衰老”疗法，现代补充剂旨在提高性欲、能量、运动表现和减肥。先前的研究表明，适当标准化的 TA 可刺激游离睾酮的释放，提高性欲，减少疲劳，改善健康状况。
我们评估了 63 名（32 名男性和 31 名女性）筛选出中度压力的受试者的应激激素和情绪状态，并补充了 TA 根的标准化热水提取物（TA）或安慰剂（PL）4 周。使用方差分析（ANOVA），显著性水平设置为 p < 0.05，以确定组间差异。
在 TA 组中，紧张（-11%）、愤怒（-12%）和困惑（-15%）均有显著改善。TA 补充剂显著改善了应激激素谱（唾液皮质醇和睾酮），降低了皮质醇暴露（-16%）并增加了睾酮状态（+37%）。
这些结果表明，每天补充东革阿里根提取物可改善应激激素谱和某些情绪状态参数，这表明这种“古老”的疗法可能是一种有效方法，可以保护身体免受“现代”慢性应激的有害影响，包括日常压力、节食、睡眠不足和运动训练的压力。
