A: indirect muscle injuries | |
 Type 1 and 2: functional muscle disorder | |
  Type 1: overexertion-related muscle disorder | |
   Type 1a: fatigue-induced muscle disorders | |
   Type 1b: delayed-onset muscle soreness | |
  Type 2: neuromuscular muscle disorder | |
   Type 2a: spine-related neuromuscular disorders | |
   Type 2b: muscle-related neuromuscular disorders | |
 Type 3 and 4: structural muscle injury | |
  Type 3: partial muscle tears | |
   Type 3a: minor partial muscle tear (Y 5 mm; intrafascicle/bundletear) | |
   Type 3b: moderate partial muscle tear (> 5 mm; interfascicle/bundle-tear | |
  Type 4: subtotal/complete muscle tear or tendinous avulsion | |
B: direct muscle injuries | |
 Contusion | |
 Laceration |