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Nathan Goodyear

Effect of Tongkat Ali on stress hormones and psychological mood state in moderately str... - 0 views

www.ncbi.nlm.nih.gov/...PMC3669033

Tongkat Ali long jack cortisol stress testosterone hormone hormones

shared by Nathan Goodyear on 09 Mar 15 - No Cached
  • At the age of 60, testosterone levels are typically only 40-50% of youthful levels and may be lower
  • Eurycoma contains a group of small peptides referred to as “eurypeptides” that are known to have effects in improving energy status and sex drive in studies of rodents
  • The effects of tongkat ali in restoring normal testosterone levels appears to be less due to actually “stimulating” testosterone synthesis, but rather by increasing the release rate of “free” testosterone from its binding hormone, sex-hormone-binding-globulin (SHBG)
  • ...6 more annotations...
  • The current study found that daily supplementation with tongkat ali root extract (200 mg/day) improves stress hormone profile (lower cortisol; higher testosterone) and certain mood state parameters (lower tension, anger, and confusion)
  • tongkat ali supplementation (100 mg/day) improved lean body mass, 1-RM strength, and arm circumference to a significantly greater degree compared to a placebo group.
  • In a recent 12-week trial [46] of Eurycoma longifolia supplementation (300 mg/day), men (30–55 years of age) showed significant improved compared to placebo in the Physical Functioning domain of the SF-36 quality of life survey
  • sexual libido was increased by 11%
  • In men with low testosterone levels (average age 51 years), one month of daily supplementation with tongkat ali extract (200 mg/day) resulted in a significant improvement in serum testosterone levels and quality-of-life parameters
  • rise in cortisol and drop in testosterone is an early signal of “overtraining”
  • Nathan Goodyear on 09 Mar 15
     
    Tongkat Ali, commonly known as long jack, is found to reduce stress and increase Testosterone.  Stress is one of the common causes of low T in men.  It appears that long Jack functions as an adaptogen.
Nathan Goodyear

Exercise-Induced Responses in Salivary Testosterone, Cortisol, and ... - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...25655373

saliva salivary hormone hormones Testosterone cortisol exercise resistance training aerobic exercise

shared by Nathan Goodyear on 16 Feb 15 - No Cached
  • Nathan Goodyear on 16 Feb 15
     
    Meta analysis of salivary Testosterone and cortisol finds mixed results.  The results are by no means uniform, but resistance training appears to trend to an increased salivary Testosterone and salivary Testosterone to salivary cortisol ratio.  Cardio trends the opposite.  This fits with prior literature on the types of exercise and hormone results.
Nathan Goodyear

Life events are positively associated with luteinizin... [Stress. 2014] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...24881484

cortisol LH leutenizing hormone stress hormone hormones men male low T Testosterone

shared by Nathan Goodyear on 03 Jun 14 - No Cached
  • Nathan Goodyear on 03 Jun 14
     
    Elevated Cortisol, life events as this study refers to, is associated with low Testosterone.  The authors found a positive association of cortisol with LH.  The result is elevated cortisol, low Testosterone, increased LH.
Nathan Goodyear

Salivary and plasma cortisol and testosterone r... [J Sports Sci. 2013] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...24279436

cortisol Testosterone saliva salivary hormone hormones serum exercise training sports

shared by Nathan Goodyear on 02 Dec 13 - No Cached
  • Nathan Goodyear on 02 Dec 13
     
    Plasma and salivary cortisol and Testosterone levels correlated in small study that looked at post-training hormones changes in athletes.  Cortisol and Testosterone peaked in all experimental groups. 
Nathan Goodyear

Behaviour of saliva cortisol [C], testost... [Eur J Appl Physiol. 2003] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...12783234

saliva salivary hormone hormones testosterone cortisol T:C athlete athletic competition recovery

shared by Nathan Goodyear on 19 Feb 13 - No Cached
  • Nathan Goodyear on 19 Feb 13
     
    salivary hormone evaluation reveals cortisol increases during athletic  competition due primarily to a increase in salivary cortisol production.  The result is a decrease in T:C ratio during competition.  In the recovery phase, cortisol decreases to baseline, but the testosterone rises above baseline, thus increasing the T:C ratio in the recovery phase.  This lasted up to 5 days in this study.
Nathan Goodyear

Changes in cortisol and testostero... [J Sports Med Phys Fitness. 2000] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...11034434

anabolic catabolic long endurance training competition T:C testosterone cortisol sports athlete athletics

shared by Nathan Goodyear on 19 Feb 13 - No Cached
  • Nathan Goodyear on 19 Feb 13
     
    long endurance competitive events associated with catabolic hormone balances found in a low T:C ratio.  This occurs primarily through an elevation in cortisol and small drop in Testosterone.  The recovery phase is anabolic through a rise in T:C, primarily through a return to baseline by cortisol and an increase in Testosterone.
Nathan Goodyear

http://www.biomed.cas.cz/physiolres/pdf/prepress/932627.pdf - 0 views

www.biomed.cas.cz/...932627.pdf

resistance training exercise resistance Testosterone cortisol men obese obesity hormone hormones

shared by Nathan Goodyear on 02 Sep 14 - No Cached
  • Nathan Goodyear on 02 Sep 14
     
    good discussion of the effects of resistance training on Testosterone and cortisol in obese men.  The literature is more more clear on the effects of resistance training on healthy men, but the evidence in obese men is less clear--likely due to the disrupted metabolism.
Nathan Goodyear

Testosterone Suppression of CRH-stimulated Cortisol in Men - 0 views

www.ncbi.nlm.nih.gov/...PMC1470424

Testosterone cortisol HPA hormone hormones men male

shared by Nathan Goodyear on 19 Jun 15 - No Cached
  • Nathan Goodyear on 19 Jun 15
     
    Testosterone inhibits CRH and thus cortisol production in men.  This has implications in men with low T and low Cortisol.
Nathan Goodyear

Thieme E-Journals - International Journal of Sports Medicine / Abstract - 0 views

www.thieme-connect.com/...s-2007-971102

competition sports exercise T:C testosterone cortisol recovery athlete athletics

shared by Nathan Goodyear on 19 Feb 13 - No Cached
  • Nathan Goodyear on 19 Feb 13
     
    competition versus recovery period in wrestling reveals different salivary hormone ratios. Competition results in low Testosterone to cortisol ratio versus the recovery phase which was found to be associated with a high testosterone to cortisol ratio.
Nathan Goodyear

Dose effects of caffeine ingestion... [J Sports Med Phys Fitness. 2014] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...24867603

caffeine sports fitness resistance training cortisol Testosterone male hormone hormones insulin sensitivity

shared by Nathan Goodyear on 03 Jun 14 - No Cached
  • Nathan Goodyear on 03 Jun 14
     
    high caffeine intake found to be associated with increased Testosterone and cortisol pre and post resistance work out times.  An elevated Testosterone would be good at both points.  However, an elevated cortisol would be catabolic during the recovery phase.  The study also found a decrease in insulin sensitivity with high caffeine intake.  This was improved with moderate and low intake.
Nathan Goodyear

Blood Hormones as Markers of Training Stress and Overtraining | SpringerLink - 0 views

link.springer.com/...00007256-199520040-00004

OTS overtraining syndrome hormones Testosterone cortisol

shared by Nathan Goodyear on 14 Mar 18 - No Cached
  • Nathan Goodyear on 14 Mar 18
     
    Older article, but good one still on hormones and overtraining.  Look to the Testosterone/Cortisol ratio.  OTS will lead to decreased Testosterone and increased cortisol resulting in chronic catabolic state.
Nathan Goodyear

Influence of dietary carbohydrate intake on the free testosterone: cortisol ratio respo... - 0 views

www.ncbi.nlm.nih.gov/...20091182

Testosterone exercise training sports medicine cortisol athletes hormones

shared by Nathan Goodyear on 03 Feb 17 - No Cached
  • Nathan Goodyear on 03 Feb 17
     
    excessive carb restriction in athletes can lower Testosterone levels and negatively impact Testosterone to cortisol ratio. This will limit performance and hinder recovery.
Nathan Goodyear

The Effects of Soy and Whey Protein Supplementation on Acute Hormonal Responses to Resi... - 0 views

www.tandfonline.com/...07315724.2013.770648

whey protein resistance training exercise Testosterone cortisol hormones soy

shared by Nathan Goodyear on 20 Oct 15 - No Cached
  • Nathan Goodyear on 20 Oct 15
     
    Recovery is key to muscle growth in resistance training. New study finds soy protein supplementation blunts Testosterone response in recovery and Whey protein blunts cortisol response in recovery. Conclusion: Whey protein to blunt cortisol response in recovery will aid anabolic recovery.
Nathan Goodyear

Testosterone and Weight Loss - the Evidence - Nebido - Testosterone Undecanoate - 0 views

www.nebido.com/...d-weight-loss-the-evidence.php

low t low Testosterone obesity estradiol aromatase hormones male hormones cortisol inflammation insulin resistance weight loss evidence testosterone

shared by Nathan Goodyear on 30 Sep 16 - No Cached
  • Nathan Goodyear on 30 Sep 16
     
    great review on Testosterone physiology and obesity.
Nathan Goodyear

Salivary cortisol and testosterone responses to resistance and plyometric exercise in 1... - 0 views

www.nrcresearchpress.com/...apnm-2015-0668

resistance training exercise testosterone cortisol hormones male hormones

shared by Nathan Goodyear on 16 May 16 - No Cached
  • Nathan Goodyear on 16 May 16
     
    Study of 12-14 y/o boys found increased Testosterone after resistance training and plyometric exercise.  Cortisol did increase after plyometric, but not resistance exercise.
Nathan Goodyear

Diet-hormone interactions: Protein/carbohydrate ratio alters reciprocally the plasma le... - 0 views

www.sciencedirect.com/...0024320587900865

nutrition diet carbohydrates fiber protein Testosterone men hormones male hormones cortisol

shared by Nathan Goodyear on 21 Sep 16 - No Cached
  • Nathan Goodyear on 21 Sep 16
     
    small study, but complex carbs found to increase Testosterone more than high protein diet.  That goes against most marketing.  In contrast, cortisol was the opposite.
Nathan Goodyear

Saliva cortisol, testosterone and T/C ratio... [Int J Sports Med. 1999] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...10190771

saliva salivary Testosterone athletes cortisol catabolic sports recovery T:C ratio

shared by Nathan Goodyear on 25 Apr 12 - No Cached
  • Nathan Goodyear on 25 Apr 12
     
    this study looked at salivary testosterone and cortisol in exercise recovery.  They found a low T/C ratio in this athletes.  This is a catabolic state.  A normalization of the a low T/C ratio will increase muscle recovery and should improve performance.  Testing was with saliva
Nathan Goodyear

Diagnosis of overtraining: what tools do we have? [Sports Med. 2002] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...11817995

T:C testosterone cortisol testosterone to cortisol ratio testosterone:cortisol overtraining sports

shared by Nathan Goodyear on 26 Jun 12 - No Cached
  • Nathan Goodyear on 26 Jun 12
     
    Testosterone to cortisol ratio can help to identify overtraining.
Nathan Goodyear

Liquid Chromatography-tandem Mass Spectrometry (LC-MS/MS) Assay for Simultaneous Measur... - 0 views

www.jstage.jst.go.jp/..._article

saliva salivar hormone hormones testosterone cortisol MS-LS mass spectroscopy

shared by Nathan Goodyear on 11 Sep 12 - No Cached
  • Nathan Goodyear on 11 Sep 12
     
    MS-LS show to be highly sensitive in the dual identification of testosterone and cortisol in saliva. These hormones were found to be stable up to 28 days at room temperature. This disproves the argument that saliva, as a test medium, has a very short shelf life.
Nathan Goodyear

Neuropsychopharmacology - Testosterone Suppression of CRH-Stimulated Cortisol in Men - 0 views

www.nature.com/...1300742a.html

Testosterone cortisol hormone hormones men male

shared by Nathan Goodyear on 19 Jun 15 - No Cached
  • Nathan Goodyear on 19 Jun 15
     
    Testosterone inhibits CRH and thus cortisol.
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