Study and results
Physically active young men received a standardized ginkgo extract or placebo for six weeks, with nine participants per group. Cycling tests and blood sampling assessed performance and biochemical responses. [1]
The authors described marginal possible performance changes, but the intergroup peak-oxygen result was not significant. Blood antioxidant measures and exercise-related BDNF findings do not directly demonstrate protection of brain tissue. [1]
Interpretation and limitations
The small sample and numerous outcomes limit certainty. The work was supported by statutory funds from the Jerzy Kukuczka Academy of Physical Education; authors declared no conflicts. It cannot establish a reliable energy benefit, fatigue treatment or effect across ages and sexes. [1]
A hypothetical distinction
Imagine a blood marker changes after exercise while a performance comparison is inconclusive. The marker does not turn the performance result into a demonstrated benefit.
| Detail | Interpretation |
|---|---|
| Blood marker | Indirect measure |
| Peak oxygen comparison | Not significant |
| Energy claim | Not established |

Sources for this article
- Effects of Six-Week Ginkgo biloba Supplementation on Aerobic Performance, Blood Pro/Antioxidant Balance, and Serum Brain-Derived Neurotrophic Factor in Physically Active Men - PMC
Source consulted: 2026-09-19. This is a reference resource, not a claim that we conducted the studies or tested a product.