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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Maca group | Experimental |
| |
| Placebo group | Placebo Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Maca | Dietary Supplement | 2.25 g Lepidium meyenii (Maca) extract twice per day for 12 weeks |
| |
| Measure | Description | Time Frame |
|---|---|---|
| IIEF-5 score | Baseline (before supplementation) | |
| IIEF-5 score | 6 weeks of supplementation | |
| IIEF-5 score | 12 weeks of supplementation | |
| IIEF-5 score | 18 weeks of supplementation | |
| IIEF-5 score | 24 weeks of supplementation | |
| EHS score | Baseline (before supplementation) | |
| EHS score | 6 weeks of supplementation | |
| EHS score | 12 weeks of supplementation | |
| EHS score | 18 weeks of supplementation | |
| EHS score | 24 weeks of supplementation | |
| level of PSA | Baseline (before supplementation) | |
| level of PSA | 6 weeks of supplementation |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Ming Ta Yang, Doctorate | Contact | 886-2-27361661 | 2275 | yangrugby@tmu.edu.tw |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Taipei Medical University | Taipei | 110 | Taiwan |
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| ID | Term |
|---|---|
| C436312 | MacA protein, E coli |
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assign 60 participants into the experimental group (n = 30) or placebo group (n = 30)
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A double-blind, matched-pair study design
| Placebo |
| Dietary Supplement |
Placebo |
|
| level of PSA | 12 weeks of supplementation |
| level of PSA | 18 weeks of supplementation |
| level of PSA | 24 weeks of supplementation |
| Testosterone level | Baseline (before supplementation) |
| Testosterone level | 6 weeks of supplementation |
| Testosterone level | 12 weeks of supplementation |
| Testosterone level | 18 weeks of supplementation |
| Testosterone level | 24 weeks of supplementation |
| LH level | Baseline (before supplementation) |
| LH level | 6 weeks of supplementation |
| LH level | 12 weeks of supplementation |
| LH level | 18 weeks of supplementation |
| LH level | 24 weeks of supplementation |
| Level of FSH | Baseline (before supplementation) |
| Level of FSH | 6 weeks of supplementation |
| Level of FSH | 12 weeks of supplementation |
| Level of FSH | 18 weeks of supplementation |
| Level of FSH | 24 weeks of supplementation |