anaerobic chronic adaptations

• muscular anaerobic chronic adaptations

  • muscular hypertrophy (increase muscle size)
  • increase myofibrils + actin/myosin
  • increase fuel stores (PC/ATP)
  • increase anaerobic enzymes (ATPase)
  • increase tolerance of metabolic byproducts
• neuromuscular adaptations - anaerobic

  • increase motor unit recruitment
  • increase rate of motor unit recruitment
• muscle hypertrophy

  • anaerobic training causes an increase in muscle size
  • increase fast twitch fibres - responsible for producing explosive actions
  • increases force production for the athlete (more explosive + quicker)
  • increase size -> increase myofibrils
  • THEREFORE: increases muscles ability to produce force -> increases force production
• increase myofibrils + actin/myosin

  • myofibrils = parts of muscle fibres that contain actin and myosin
  • actin and myosin are proteins that are responsible for muscle contractions and force production
  • increase size and number of myofibrils int he muscles -> increase actin and myosin
  • THEREFORE: enables muscle to exert a larger force when contracting which allows more explosive movements
• increased fuel stores (PC/ATP)

  • there are greater amouns of ATP and PC molecules that are stored within muscle fibres (more stores)
  • THEREFORE: allows more athletes to maintain explosive efforts for longer
• increased anaerobic enzymes (ATPase)

  • ATPase = enzyme responsible for speeding up the turnover of ATP
  • anaerobic training increases amount of ATPase within the muscle (releases ATP faster)
  • THEREFORE: increase rate of atp production -> work at a higher intensity
• increased tolerance of metabolic byproducts

  • muscles develop ability to tolerate the impact of accumulation of metabolic byproducts
  • can accumulate a greater amount of metabolic byproducts before feeling fatigued
  • THEREFORE: athlete can sustain their high intensity efforts (anaerobic) for longer before they reduce intensity (for more seconds)
• increased motor unit recruitment (more sites)

  • increase number of motor units that are recruited - therefore increases the number of muscle fibres that contract
  • increased amount of muscles to contract
  • THEREFORE: increased force production (more power)
• increased rate of motor unit recruitment (more frequent)

  • increased rate of motor unit recruitment -> increases rate of muscular contractions
  • THEREFORE: increase rate of force production (more quickly)