NEET PG Medical – 2012 – Question – 40
During heel touch phase of walking pressure in calf compartment is ?
a) More than resting pressure
b) Less than resting pressure
c) No change in pressure
d) First rises and then falls
Correct Answer – C
Ans. is ‘C’ i.e., No change in pressure
In heel strike, the ankle is dorsiflexed and the main muscle acting on ankle is tibialis anterior.
Muscles of posterior compartment of leg (Gastrocnemius-soleus) are at their normal length. So, the pressure in posterior compartment does not change.
On the other hand, In push off phase Gastrocnemius-soleus are contracted which results in increased pressure of posterior
compartment (whenever there is contraction of muscles of a compartment, pressure of that compartment is increased).
