Hello Chris Lutz,
I fully agree, the abdominals will help stabilize; and it is not possible to isolate a certain body part, since we are made to move in the closed kinetic chain.
If it is that hard for you to breathe during that exercise position, do you think hypertonicity could be a contributing factor?
I was unable to find a journal article or specific study in the realm of confirming machines isolating specific parts of the body.
The only real problem related to breathing on the triceps extension machine I can think of is looking into the size settings of the machine.
Stabilizers are utilized in every exercise. It looks like the above posts or OP mentioned that “stabilizers” refers specifically to the midsection.
Do you mean to say your abdominals are kicking into gear when you hop in a triceps extension machine?
It is not research needed to prove this. Initially machine had been created to work for people with disabilities. But, if you would like activate your stabilizing musculature when working on machine, use only one arm or one leg. Deep core muscles will tell you big “Thank You”.
With regards, Mira,