Maca Extract in Sexual Dysfunction Male

Effects of Lepidium Meyenii (Maca) Extract Supplementation on Male Sexual Funtion

The purpose of this study was to investigate the effects of Lepidium meyenii (Maca) extract supplementation on male sexual funtion.

All participants performed anthropometric measurements, blood collection and questionnaire survey at 0-week. A random, double-blind design will be used to assign 60 participants into the experimental group (n = 30) or placebo group (n = 30). All participants consumed either 2.25 g Lepidium meyenii (Maca) extract twice per day for 12 weeks. The anthropometric measurements, blood samples, and questionnaire survey were collected again at 6-week, 12-week, 16-week, and 24-week. Data will be analyzed by two-way mixed design ANOVA.

Inclusion Criteria:

1. evaluated as sexual dysfunction for more than three months by physician
2. international index of erectile function (IIEF) score is less than or equal to 21
3. erectile hardness score (EHS) score is less than or equal to 3
4. aged over 18 years old

Exclusion Criteria:

1. unable to cooperate with the course of the treatment
2. suffering from sexually transmitted diseases such as Syphilis, AIDS and HPVs
3. had Radical Prostatectomy (total removal of the prostate gland)
4. suffering from active tumors in the prostate or pelvic area
5. suffering from Hypogonadism
6. anatomical deformation of the penis
7. men with penile prosthesis
8. suffering from psychotic disorder (manic disorder, chronic depression, etc.)
9. suffering from neurological diseases (multiple sclerosis, brain or spinal cord injuries, etc.)
10. using Permanent pacemaker
11. considered unsuitable to participate in this experiment according to the doctor
12. alcohol or drug abuse