Question

question 18 (mandatory) (2 points)
listen
while performing sacral counter-nutation prone, the doctor feels a block of wood. what restriction is the doctor feeling?
a) +θz
b) -θy
c) -θx
d) +θx

Explanation:

To solve this, we recall the biomechanics of sacral motion. In sacral counter - nutation prone, the restriction related to the angular motion around the X - axis (θX) with a negative sign (-θX) is what presents as a "block of wood" sensation. This is based on the understanding of sacral biomechanical axes and their associated restrictions.

Answer:

c) -ΘX