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Nathan Goodyear

Nature vs. nurture: can exercise really alter fiber type composition in human skeletal ... - 0 views

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    Muscle fiber types exist on a continuum.
Nathan Goodyear

http://n.ethz.ch/~aguayod/download/The%20Influence%20of%20Frequency,Intensity,%20Volume... - 0 views

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    Thorough review on resistance training and the effects on muscle.
Nathan Goodyear

Changes in muscle mass with mechanical load: possible cellular mechanismsThis... - 0 views

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    mTOR signaling pathway involved with building muscle (hypertrophy)
Nathan Goodyear

Difference in kinematics and kinetics between high- and low-velocit... - PubMed - NCBI - 0 views

  • LLHV protocol may offer an equal if not better training stimulus for muscular adaptation than the HLLV protocol
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    Study finds that low weight (load described in this article) high rep (described as high velocity) is better than high weight and low reps.  Only abstract available here.
Nathan Goodyear

http://baye.com/wp-content/uploads/2011/09/ebrtr-Fisher.pdf - 0 views

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    Review of the evidence behind resistance training.
Nathan Goodyear

http://www.ucam.edu/sites/default/files/Oct_13/mechanisms_of_muscle_hypertrophy.pdf - 0 views

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    Awesome review by Schoenfeld on the physiology of muscle hypertrophy.
Nathan Goodyear

http://www.lookgreatnaked.com/articles/use_of_specialized_training_techniques.pdf - 0 views

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    very nice review of the mechanism of muscle building per the current understanding found in science.
Nathan Goodyear

Muscle Hypertrophy 2011 - 0 views

  • mechanical tension, muscle damage and metabolic stress are the three primary factors that promote hypertrophy from exercise
  • The mechanical tension is directly related to intensity of the exercise, which is the key to stimulating muscle growth
  • Muscle damage, that leads to muscle soreness, from exercise training initiates an inflammatory response, which activates satellite cells growth processes
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  • metabolic stress that is a result of the byproducts of anaerobic metabolism (i.e., hydrogen ions, lactate, inorganic phosphates) is now also believed to promote hormonal factors leading to muscle hypertrophy
  • The upper extremities tend to show more growth earlier then the lower body
  • Maximal growth occurs with loads between 80-95% of 1 repetition maximum
  • weightlifters and powerlifters show more favorable hypertrophy of type II (fast twitch) muscle fibers
  • body builders appear to have comparable hypertrophy in both the type I (slow twitch) and type II muscle fibers
  • Multi-joint exercises have been shown to produce larger increases of anabolic hormones than single-joint exercises
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    Review of the physiology of muscle building.  The authors review the evidence behind the types of muscle building exercises and the physiology responsible for muscle hypertrophy.  The authors point to Schoenfeld's description of mechanical tension, muscle damage, and metabolic stress to build muscle.
Nathan Goodyear

ACE - ProSource: July 2014 - Muscle Up! Evidence-based Solutions for Maximizing Muscle ... - 0 views

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    Online article reviewing the physiologic adaptation of muscle to resistance training.  The author used the evidence here to point to the most productive resistance training protocol--the RE effort.  The RE effort is the high repetition, lower weight regimen.  However, the RE to failure is critical to the success of RE.
Nathan Goodyear

https://g-se.com/uploads/biblioteca/full2013.pdf - 0 views

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    Nice review of recent understanding of how resistance training promotes muscle hypertrophy adaptation.
Nathan Goodyear

Muscle satellite cells. - PubMed - NCBI - 0 views

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    muscle satellite cells defined
Nathan Goodyear

Testosterone Deficiency in Young Men: Marked Alterations in Whole Body Protein Kinetics... - 0 views

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    low T in men, small study, found to decrease muscle growth, decreased strength as a result, decrease in fat oxidation/breakdown and increase in fat stores.  Low T turns the muscle:fat ratio in men upside down--the result is a metabolic derailment.
Nathan Goodyear

Effects of testosterone replacement on muscle mass and muscle protein synthesis in hypo... - 0 views

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    Testosterone therapy in men with low T is associated with an increase in protein synthesis and thus an increase in muscle mass.
Nathan Goodyear

Testosterone administration to elderly men increases skeletal muscle strength and prote... - 0 views

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    small study finds that Testosterone therapy in elderly men increased protein synthesis, muscle mass, and increase in strength.
Nathan Goodyear

Effect of testosterone on muscle mass and muscle protein synthesis | Journal of Applied... - 0 views

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    Testosterone promotes muscle mass increase through increased protein synthesis.
Nathan Goodyear

Testosterone Replacement in Hypogonadal Men With Type 2 Diabetes and/or Metabolic Syndr... - 0 views

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    Testosterone therapy in men with low Testosterone was found to improve insulin sensitivity, total cholesterol levels, LDL, Lpa, and sexual performance in men with low T, type II diabetes and/or metabolic syndrome.  There is suggestion that muscle composition was improved as well.
Nathan Goodyear

Hormonal and lifestyle determinants of appendicular skeletal muscle mass in men: the MI... - 0 views

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    muscle loss, sarcopenia is a significant marker of poor health in men.  This study of 845 men age 45-85 finds that low Testosterone, low vitamin D, low physical activity, smoking, and thin body build are associated with sarcopenia in men.
Nathan Goodyear

Predictors of skeletal muscle mass in elderly men and women - 0 views

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    Study of men and women finds that low free Testosterone, physical activity, and IGF1 is associated with muscle mass in men; no such relationship between sex hormone and muscle mass in women was found.
Nathan Goodyear

Relationship between Low Free Testosterone Levels and Loss of Muscle Mass : Scientific ... - 0 views

  • Our data confirm that a low FT level is a significant predictor of a risk for loss of appendicular muscle
  • Total lean mass is associated with bioavailable T in postmenopausal women
  • Further studies are needed to determine the role of androgens in preserving muscle mass in women
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  • Approximately 1% to 2% of T in the blood exists as FT
  • appendicular muscle loss was significantly associated with low levels of FT
  • These results suggest that a threshold level of FT exists for muscle loss, rather than a dose-response relationship
  • In the previous cross-sectional and longitudinal studies of French and American men, no dose-response relationships were reported between T and muscle mass
  • A minimal serum level of FT may be needed to preserve muscle mass in men, regardless of race/ethnicity.
  • Our result is in line with previous studies that reported a relationship between low FT and low muscle mass in men
  • T stimulates protein synthesis and inhibits protein degradation in muscle cells
  • T also increases satellite cell replication and activation in older men
  • In this study, no significant association between TT levels and muscle loss were observed
  • Although a progressive decrease in TT levels with ageing is observed in middle-aged and elderly American men16, 17, the TT levels do not change during ageing in Japanese men
  • FT levels may be a good marker for the loss of muscle mas
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    study of Japanese men finds that low free Testosterone was a predictor of decrease in muscle mass.
Nathan Goodyear

Testosterone and weight loss: the evidence - 0 views

    • Nathan Goodyear
       
      What a ridiculous statement!
  • Testosterone therapy increases LBM, reduces fat mass and produces sustained and significant weight loss, reduction in waist circumference and BMI
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