Brady Holmer

There are subsets of type two and maybe don't need to go into the details of those, but we have two A, two B, and then two X. They kind of go on this spectrum from

very fast oxidative glycolytic to sort of these this mix between aerobic and glycolytic fibers, but we'll just put them in these buckets of type one and type two.

For now, type two are fast twitch type one or slow twitch fibers.

During low intensity activity, we're going to activate those low or those slow twitch fibers.

So if you're leisurely walking, you're

doing the dishes, just to use some of the examples from this study, you're gonna be activating those low intensity, those type one fibers.

Even if you're doing something like endurance exercise for the most part, probably type one fibers are gonna be activated.

And then as you increase the intensity of exercise, increase the force of, you know, or the weight of something that you're moving, if you're lifting weights,

that you're going to progressively activate more type one fibers and then move on to the type two fibers eventually.

And so in the context of this study, I think, you know, why are we seeing this outsized impact of vigorous movement throughout the day?

Well, if you're doing more vigorous movement, you're activating these type two fibers more, and you're giving them more of a stimulus and type two fibers are the type of fibers that will atrophy first and lose strength first with with age.

So you lose type two fibers first, and then we move down to losing those

type one or weakening of type one fibers.

And so the more vigorous exercise you're engaging in, just even if it's just chores, even if it's if you pick up a box, you're engaging type two fibers, depending on how heavy that box is.

Obviously, if you're carrying your kid, you might be engaging type two fibers.

So just doing this more vigorous activity throughout the day and then obviously engaging in

high intensity exercise and vigorous exercise, you're going to engage more of those type two fibers.

And those play, I think, a role, an important role in a few things.

So for diabetes, going back to what you talked about, more glucose.

So if you can activate those type two fibers, you're going to be able to use more glucose, better your insulin sensitivity, lower your fasting blood glucose.