| Effect | Increase |
| Trial Design | Double blind |
| Trial Length | 2-4 Weeks |
| Number of Subjects | 8 |
| Sex | Male |
| Age Range | 18-29, 30-44 |
| Body Types | Trained |
2g of a 5:1 extract of Maca (10g bioactivity) supplemented by experienced male endurance cyclists failed to improve performance over 2 weeks better than placebo (although it was associated with a significant improvement when compared to baseline) but increased libido.
