Sarcoplasm

And it was just like a, almost like a circuit training where they were going around and around.

And it led to nothing but quote unquote sarcoplasmic hypertrophy.

You're basically just getting cell swelling and really no myofibular growth, meaning you didn't get any of that contractile tissue being, or those contractile proteins being added.

So you did a bunch of junk.

The protein synthesis in muscle, it didn't change for the myofibrillar fraction, which is the fraction that sort of contracts the muscle.

It didn't change for the sarcoplasmic fraction, which are all the sort of proteins floating around in the muscle that are not necessarily contractile apparatus of the muscle.

But it went up for the mitochondrial fraction of the muscle.

So the mitochondrial fraction, mitochondrial proteins are the proteins related to generating energy.

Well, when there's a decrease in muscle protein synthesis, it depends on what fraction you're looking at.

Typically, the studies that look at muscle protein synthesis, they look at the myofibrillar fraction.

Some of them differentiate myofibrillar from sarcoplasmic, and only a few of them look at mitochondrial fraction, which is a lot harder to measure directly because the pool of proteins is a lot smaller.

So if you see a decrease in whatever sort of muscle protein synthesis measurement, it's probably muscle.