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Effect of Lepidium meyenii (Maca) on
physical-energetic performance in humans. Gayoso O, Aguilar JL,
Goyzueta I, Rojas P, Marcelo A, Timoteo 0, Carvajal L. Draft
Paper.
In this prospective double blind placebo
controlled study it is demonstrated that exists an improvement
in the physical yield of healthy adults supplemented with
Lepidium meyenii (Maca) on a daily dose, which is
significantly superior to the yield of the placebo group. An
increase in the distance range in the six-minute walking test
(SMW7J in people from Maca group (p< 0.05) was demonstrated.
No modifications in weight or biochemical nutritional
parameters were detected, thus this stamina property is
independent of nutritional features of Maca. No side effects
were reported with ingestion of Maca.
Vigor-Inducing Effect of Maca (Lepidium
meyenii Walp), an Andean Hypocotyl, in Mice. Salas CA. Draft
Paper
In this study a group of mice
supplemented with Lepidium meyenii were compared to control
group to evaluate the stamina effect. The results show a
significant increase of energetic performance in oxygen
consumption, and also an increase of resistance on swimming
time. these results show the vigor-inducing effect of Maca.
Evaluation of the Stamina Activity of two
Extracts from Lepidium meyenii (Maca) in Albino Mice. Rojas P,
Macarlupu JL Capcha R, Plaza A, Aguilar JL. Draft Paper
In this study two standardized extracts
of Lepidium meyenii with a known concentration of
glucosinolates were evaluated by the stamina effect in mice
using the oxygen consumption (the VO2 max) in rest and after
activity. The results show a significant increase of energetic
performance of mice supplemented with glucosinolate-enriched
extracts compared to control group no supplemented. This study
increases the amount of evidence about the energetic
capability of Maca in animal models.
Antihypoglycemic Effect of Maca in Fasted
and Insulin-induced hypoglycemic Mice. Miura T , Hayashi M,
Naito Y, Suzuki I. J Traditional Med 1999 i16: 93-96
In this clinical trial, the
antihypoglycemic effect of Lepidium meyenii was investigated
in fasted and insulin-induced hypoglycemic mice. The results
indicated the anti-hypoglycemic effect of Lepidium meyenii may
promote glyconeogenesls. These findings may be useful for the
treatment of energy supply on hypoglycemic conditions
Lepidium meyenii Walp. improves sexual
behaviour in male rats independently from its action on
spontaneous locomotor activity. Cicero AF, Bandieri E, Arletti
R. Biomedical Sciences Department, Pharmacology Section,
University of Modena and Reggio nell'Emilia, Via G. Campi,
287, 41100, Modena, Italy. Journal of Ethnopharmacol 2001 May;
75 (2-3): 225-9
Lepidium meyenii Walpers (Maca) is
traditionally employed in the Andean region for its supposed
properties to improve energy and fertility. The aim of this
study was to evaluate the effect of acute and chronic Maca
pulverized root oral administration on rat sexual behaviour.
Sixty male sexually experienced rats (20
group) were daily treated for 15 days with Maca 15 mg kg(-1),
Maca 75 mg kg(-1) or saline 0.5 ml kg(-1). An activity cage
test was carried out to evaluate if Maca-induced locomotion
changes could indirectly improve rat sexual performances. It
was concluded that both acute and chronic Maca oral
administration significantly improve sexual performance
parameters in male rats.
Effect of Lepidium meyenii (Maca), a root
with aphrodisiac and fertility-enhancing properties, on serum
reproductive hormone levels in adult healthy men. Gonzales GF,
Cordova A, Vega K, Chung A, Villena A, Gonez C. Instituto de
Investigaciones de la Altura, and Department of Biological and
Physiological Sciences (Faculty of Sciences and Philosophy),
Universidad Peruana Cayetano Heredia, PO 1843, Lima, Peru.
Journal of Endocrinology 2003 Jan; 176 (1): 163-8
This study was a 12-week double-blind,
placebo-controlled, randomized, parallel trial in which active
treatment with different doses of Gelatinized Maca was
compared with a placebo. The study aimed to test the
hypothesis that Maca has no effect on serum reproductive
hormone levels in apparently healthy men when administered in
doses used for aphrodisiac and/or fertility-enhancing
properties. Men aged between 21 and 56 Years received 1,500 mg
or 3,000 mg Maca. Serum levels of luteinizing hormone,
follicle-stimulating hormone, prolactin, 17-alpha
hydroxyprogesterone, testosterone and 17-beta estradiol were
measured before and at 2, 4, 8 and 12 weeks of treatment with
placebo or Maca.
Data showed that compared with placebo
Maca had no effect on any of the hormones studied nor did the
hormones show any changes over time. Multiple regression
analysis showed that serum testosterone levels were not
affected by treatment with Maca at any of the times studied
(P=NS). In conclusion, treatment with Maca does not affect
serum reproductive hormone levels.
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