The posterolateral (PL) muscle chain
Composition of the posterolateral (PL) muscle chain
Main structures of the PL chain
Muscles of the chain of the lower limbs:
- Gluteus medius.
- External hamstrings (short and long portion of the biceps femoris)
- Vastus lateralis of the quadriceps.
- Fibular muscles.
- External gastrocnemius (Lateral head of the gastrocnemius muscle).
- Plantar muscle.
- Oblique bundle of the abductor of the first toe.
Muscles of the chain of the upper limbs:
- Upper and middle trapezius.
- Supraspinatus.
- Lateral deltoid.
- Vastus lateralis of the brachii triceps.
- Anconae.
- Flexor ulnaris and extensor carpi ulnaris.
- Fifth finger abductor.
Extension of the PL chain in the trunk
- Levator scapulae
- Rhomboid.
- Medium trapezius.
- Posterior and inferior serratus.
- Upper trapezius.
- serratus anterior muscle.
- External abdominal oblique.