PDA

View Full Version : Phosphatidylserine in Res100



O.N.
02-28-2013, 09:55 AM
Phosphatidylserine in Res100 reduces cortisol and increases Testosterone

A reduced level of cortisol will offer the following benefits:
• Improve the testosterone to cortisol ratio
• Increase resistance to stress & fatigue
• Increase exercise capacity
• Speed recovery & reduce muscle soreness
• Enhanced sense of well-being

What are some signs that my cortisol is too high?
• Excess fat distribution around the face and/or abdominal area
• Low Libido
• Low Testosterone
• Low GH (Growth Hormone)
• Decreased insulin sensitivity
• Suppressed immune system
• Mental depression
• Easily fatigued or exhausted
• Prolonged recovery from exercise


Full Study Extract here: JISSN | Full text | The effects of phosphatidylserine on endocrine response to moderate intensity exercise (http://www.jissn.com/content/5/1/11)

Figure 1 shows the effects of S-PS or placebo supplementation on cortisol, testosterone, lactate and growth hormone response to exercise-induced stress at -30, 0, 15, 20, 30, 40, 60, and 80 minutes after exercise. Mean peak concentrations are shown in table 2.


http://www.res100.com/wp-content/uploads/2012/04/cortisol_levels_test_on_ps.jpg
Cortisol, testosterone, lactate and growth hormone response to exercise after 10 days of oral treatment with 600 mg S-PS or placebo (pre-exercise phase -30 to 0 minutes, exercise phase: 0 to 15 minutes, recovery phase 16 to 80 minutes).

Starks et al. Journal of the International Society of Sports Nutrition 2008 5:11 doi:10.1186/1550-2783-5-11


S-PS supplementation resulted in significant lower plasma cortisol levels at the beginning of the exercise (p = 0.002) when compared to placebo. Differences for testosterone (p = 0.20) and growth hormone levels (p = 0.30) were not significant.

S-PS supplementation reduced plasma cortisol concentrations by 39 ± 1% when compared with placebo (treatment effect: F = 6.7, p = 0.03; treatment × time interaction effect: F = 8.3, p = 0.05). Plasma testosterone concentrations increased with S-PS (51 ± 6%) when compared with placebo; however, differences between groups failed to reach statistical significance for the effect of treatment (F = 2.79, p = 0.13) and treatment × time interaction effect (F = 0.35, p = 0.87). Exercise resulted in an increase in lactate levels in both groups, however, the increase failed to reach statistical significance (time effect: F = 5.41, p = 0.06). Supplementation did not result in significant differences in lactate response between the S-PS and placebo groups (treatment effect: F = 0.47, p = 0.51; treatment × time effect: F = 1.62, p = 0.34). Similarly, supplementation did not influence plasma growth hormone concentrations (treatment effect: F = 2.49, p = 0.15) or the pattern of response (treatment × time interaction effect: F = 0.75, p = 0.66).

S-PS supplementation resulted in a favorable physiological state when compared to the placebo group. Area under the curve analysis (figure 2) showed significant differences between S-PS and placebo for cortisol (35 ± 0% reduction, p < 0.01), testosterone (37 ± 5% increase, p = 0.02), and testosterone to cortisol ratio (184 ± 5% increase, p = 0.02, figure 2).


http://www.jissn.com/content/figures/1550-2783-5-11-2-l.jpg
S-PS significantly decreased cortisol (35 ± 0%, p < 0.01) and increased testosterone (37 ± 5%, p = 0.02) AUC levels and testosterone to cortisol ratio (184 ± 5%, p = 0.02) in comparison to placebo.

Starks et al. Journal of the International Society of Sports Nutrition 2008 5:11 doi:10.1186/1550-2783-5-11