Department of Molecular Biology, Ariel University, Ariel, Israel.
Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty of Medicine and Sylvan Adams Sports Institute, Tel Aviv University, Tel Aviv, Israel; and.
J Strength Cond Res. 2020 Sep;34(9):2476-2481. doi: 10.1519/JSC.0000000000003693.
Hoffman, JR, Marcus, I, Dubnov-Raz, G, and Gepner, Y. Ergogenic effects of 8 days of Sceletium tortuosum supplementation on mood, visual tracking, and reaction in recreationally trained men and women. J Strength Cond Res 34(9): 2476-2481, 2020-Sceletium tortuosum (ST) is a South African plant that has been reported to promote a sense of well-being in healthy individuals and used in treating people with anxiety, stress, or depression. These studies have been conducted in middle-aged and older adults, but no investigations have been performed in a healthy, young adult population. Thus, the purpose of this study was to examine the effect of 8 days of ST extract (25-mg) supplementation on changes in reactive agility, visual tracking, and mood. Sixty recreationally trained men (n = 48) and women (n = 12), between 20 and 35 years, were randomly assigned to 1 of 2 groups: ST or placebo (PL). Subjects were tested on 2 occasions: before supplementation and 2-hours after supplementation on day 8. Subjects completed a subjective questionnaire to assess alertness and energy using a visual analog scale (VAS). In addition, subjects completed the Profile of Mood States questionnaire and performed reactive agility and visual tracking assessments. Significant improvements were noted for ST in complex reactive performance that required subjects to respond to repeated visual stimuli with a cognitive load compared with PL. However, no significant changes were noted between the groups in either VAS or total mood score. In addition, no differences were observed in simple reaction assessments. The results of this study demonstrate an ergogenic benefit in complex reactive tasks that include a cognitive load. However, in this subject population studied, no benefits in mood were observed.
霍夫曼，JR，马库斯，I，杜布诺夫 - 拉兹，G，和格佩纳，Y。 8 天的南非醉茄补充对情绪，视觉跟踪和反应的影响在娱乐训练的男性和女性。 J 强质研究 34（9）：2476-2481，2020-南非醉茄（ST）是一种南非植物，据报道可促进健康个体的幸福感，并用于治疗焦虑，压力或抑郁的人群。 这些研究是在中年和老年人中进行的，但在健康的年轻人群中没有进行过调查。 因此，本研究的目的是研究 8 天 ST 提取物（25mg）补充对反应性敏捷性，视觉跟踪和情绪变化的影响。 60 名娱乐训练的男性（n = 48）和女性（n = 12），年龄在 20 至 35 岁之间，随机分为 2 组之一：ST 或安慰剂（PL）。 受试者在 2 次测试：补充前和补充后 8 天 2 小时。 受试者使用视觉模拟量表（VAS）完成主观问卷，以评估警觉性和能量。 此外，受试者完成了心境状态问卷，并进行了反应性敏捷性和视觉跟踪评估。 与 PL 相比，ST 在需要受试者用认知负荷对重复视觉刺激做出反应的复杂反应性能方面表现出明显的改善。 然而，两组之间在 VAS 或总情绪评分方面没有明显差异。 此外，在简单反应评估中没有观察到差异。 本研究的结果表明，在包含认知负荷的复杂反应任务中具有增效作用。 然而，在研究的这一人群中，没有观察到情绪的改善。
