Exercise for Arthritis & Aging : How Muscles Build & Heal
O.k. So we talked about how as there’s micro
tears occurring in the muscles when you exercise. And this is a simple example of muscle cells
stacked on top of each other. That’s actually the anatomy of how muscle cells create muscle
tissue. And these are clean muscles and these are the exercise muscles that need to be repaired.
So how this process works is a key point to how exercise is actually affective and helpful
for countering the aging process. And to give a little demonstration, I’m going to be using
food color and this water in the glass here to kind of show how this works. But, basically,
every time those tears occur, white blood cells swarm to the area kind of like a bee
swarming a damaged nest. And they swarm to that area to create, to wall off the area,
and repair the damaged tissues. So if this dye then is the inflammatory cascade or the
chemical messenger that occurs when the damage to the muscle cells happens, this is the blood.
So we can think of once the tissue is torn, it’s an instantaneous affect where the tissue
creates a chemical messenger to white blood cells to swarm to the area to repair the damage.
And it is instantaneous which the reason for using this is. You can see how it spreads
out to the area. That instant when it hits the water, it spreads out. And so how this
relates to the aging process and what’s important about it will be the subject of the next video.