PE GCSE edexel muscular system key words

key words with definitions

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  • key word muscular system
    • agonist
      • muscle contracting (prime mover)
    • antagonist
      • muscle relaxing
    • antagonistic pairs
      • while on muscle contracts the other relaxes to create movement
        • e.g biceps and triceps or hamstrings and quadriceps
    • isotonic muscle contraction
      • contractions that result in movement
        • think sports isotonic drink with movement
    • atrophy
      • muscle mass decreases
    • isometric muscle contraction
      • muscle tension is increased but length stays the same
    • reversability
      • any fitness or body adaptation will gradually reverse and lost when you stop training
  • contractions that result in movement
    • think sports isotonic drink with movement

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