OSA

Question 1

Overactive (Short)

Soleus and Lateral Gastrocnemius

Answer 1

Compensation (Feet turn out)
Excessive plantar flexion limits dorsiflexion, which means in order to squat and achieve desired depth?
Possible injuries are Plantar Fasciitis. As the arch falls, fascia is stretched excessively- pain typically occurs @ insertion (heel).

Question 2

Underactive (Lengthened)

Anterior Tibialis and Medial Gastrocnemius

Answer 2

Compensation- Feet turn out
Promotes dorsiflexion flexion to allow proper range of motion (rom) and stabilizes the foot and ankle complex. (Anterior Tibialis).
Promotes tibial internal rotation. (Medial Gastrocnemius)
Possible injury-Achilles Tendinopathy- Due to excessive plantar flexion (tight Gastrocnemius and Soleus) and rotation of the Achilles during movement patterns.

Question 3

Overactive (Short)
Biceps Femoris (Short Head)

Answer 3

Compensation- Feet turn out

Attaches from lower femur to fibula, externally rotates lower leg & disrupts normal ankle mechanics.

Question 4

Underactive
(Lengthened)
Medial Hamstring

Answer 4

Compensation-Feet turn out
Helps stabilize limbo pelvic hip complex and promotes internal rotation of the lower leg.
Possible injury- Medial Tibial Stress Syndrome(shin splints).
Improper ankle mechanics (lack of dorsiflexion) and externally rotated lower leg leads to overuse of ant/post tibialis.