Knowledge Center: Muscle and Strength

Knowledge Center items filed under Muscle and Strength. Categories are plain-language browse labels for explainer pages. They are separate from peptide tags, which list compounds rather than concepts.

• Healing
• Tissue Repair
• Weight Loss
• Appetite
• Cellular Energy
• Metabolism
• Inflammation
• Brain and Cognition
• Skin and Hair
• Anti Aging
• Hormones
• Muscle and Strength
• Sport and Doping Rules

Items in this category

This category holds 6 items.

• Anabolic steroid — What is an anabolic steroid?
  Anabolic-androgenic steroids (AAS) are synthetic androgens derived from testosterone, used to boost muscle mass and strength. Prohibited in tested sport.
• Growth hormone — What is growth hormone and how does it work?
  A 191-amino-acid peptide hormone from the anterior pituitary that stimulates growth and IGF-1 production. Prohibited under WADA as a performance enhancer.
• Growth hormone secretagogue — How do growth hormone secretagogues work?
  A class of compounds that stimulate the pituitary to release endogenous growth hormone via the ghrelin/GHS or GHRH receptor. Prohibited in tested sport.
• Insulin-like growth factor 1 — What is IGF-1 and what does it do?
  IGF-1 is a 70-amino-acid peptide hormone that mediates growth hormone's anabolic effects on muscle and bone. It is banned by WADA as a performance enhancer.
• Natural bodybuilding — What is natural bodybuilding?
  Natural bodybuilding is competitive physique sport in which athletes build muscle without anabolic steroids or other substances banned by tested federations.
• Selective androgen receptor modulator — What is a SARM and how does it work?
  SARMs are non-steroidal compounds that bind the androgen receptor with tissue selectivity, favoring muscle/bone effects over androgenic ones. Banned in sport.

See also

• Knowledge Center index
• All tags
• List of peptides