Why wouldn’t athletes do lower carb protocols if it was so beneficial for performance? You wouldn’t see athletes who are more endurance-oriented following lower carb protocols. All of them eat a higher glycemic diet, which means they are still consuming a lot of glucose. They then run, and refuel with glucose. I have to be the first one to admit that this is not a bad way to do things. It’s clear that carbohydrate fueling is effective for endurance training.
You just have to refuel. People will eat sugary, sweetened gummies and goo packs while exercising. You’ve just become a glucose burner, so you need to be okay with refueling. I’m not saying that a lower-carb, higher-fat diet is better than the others.
There are many strokes and different routes that people use, but it is better to work longer endurance. It is clear that a lower carb diet could prove to be more beneficial. However, i would like to concentrate more on the hidden mechanisms behind how we consume glucose when we train or run. Some of it has to do cardiac tissue. We can’t take all of the mechanistic data but it makes us feel a little more go. Okay, today’s video was brought to you via seed.
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You might think that i’m going discount this study. But, i am not a rat. I’m a human with many variables. You are correct. This is certainly true. However, we begin by looking at rodent models.
The first step is to examine in vitro material, then we verify it in humans. It’s a lengthy process that requires lots of data and money. But here’s the beginning. They took cardiac tissue and saturated it with glucose. It was almost as if the tissue were being mimicked. These cells would be exposed to very high levels of glucose.
It’s almost like you were hypoglycemic. They found that this actually affected calcium levels. This caused abnormal calcium responses in the tissue. Calcium is crucial for the heart.
It is what allows the heart to contractile. So what were they demonstrating? That the cells became so low in calcium that they would have no contractile ability. This is due to oxidative stress in the heart. The heart is therefore beating harder than it should. It is not beating hard enough. It’s difficult to explain the concept of dysregulation and dysfunctional right. There is a lot of confusion.
You could take a rubberband and try to strum or ping it with your fingers. If your finger was calcium that would be a good indicator. Now you have a system that relays information about how your muscles move, how your brain works, how everything is jiving, how your cardiac tissue functions, and how your heart beats. Calcium, it’s not a rate-limiting step. But it’s very important.
If calcium levels are low, my finger may start moving the rubber band very fast or pinging. You might feel it moving very fast, or pinging it slow. This will affect the contractile tissue’s function. It can lead to oxidative stress, where the heart beats too fast and creates more stress. However, it is also possible for it to just cause it.
You are not reaching your cardiovascular potential if your heart isn’t working hard enough or too slow. You’ll still experience the same effect regardless of how hard you exert your heart. Your heart is still working hard. Are you preventing yourself from reaching the threshold and getting to where you want to go? It’s about what’s happening mechanistically. It’s confusing because we can’t see the mechanistic data.
There is a lot of speculation. We don’t have all the answers, so we can’t fully understand the body. But i will tell you what the researchers looked at. It may have something to do with what they call s-e–r-c–a or circa. It is a calcium pump.
It’s like a fire marshal. I’ve also referenced it in another video. A fire marshal can see when there’s too many calcium and tells them to get rid of it. It’s like a bouncer, okay? The fire marshal may not be there because circa is disrupted. This means that the calcium pumps don’t work properly and there’s too much calcium. This is the contractile function, you know it.
This is a problem, and glucose appears to have an in vitro effect on this circa. This is very important information. This is what we need to consider. Is this to say that having too much glucose before you workout will affect you?
Okay, calm brains are relaxed and fast brains. We want the brain to jive and be able to move in the right direction. We don’t want instabilities in our networks.
We want network stability. The brain regions should be able communicate well with each other, so that all systems work properly. There are no strange nervous system reactions.
This is crucial when it comes to the amount of grit required to complete a triathlon, or to endure a long ride or run. If you experience a large glucose spike, then insulin rises, that can cause a crash, which can lead to a mental problem. All of a sudden it feels like all the systems we have firing at a high speed are being stuttering. We want stability. I’m not going say that a low carb protocol is better for xyz. But i will say that it is when it comes to glucose stability.
This is an important part. We should look at glucose stability as a way to ensure that the body has a constant source of fuel. You might notice a greater stability in people who are lower carb than people who are high carb for endurance work.
As an endurance athlete, I have found that I prefer a lower carb diet. My glucose levels are quite stable until I stop moving. Then it pools and goes higher. This is quite normal.
I’m not going to get into the ketones debate as a fuel for exercising. You should be focusing on how to avoid massive influxes in glucose that can negatively affect us. This is especially true when you look at the data. It is clear that fueling your runs or fueling your rides using a lot of glucose is not the best idea. It is almost better to have glycogen stored, but be fat-adapted. Now.
I mean that you should do longer runs or longer rides in a deficient state. I mean that the body will learn how to use fat as fuel by eating less carbs or fasting. But it won’t completely stop using glucose. It’s kind of like looking at the old train low compete, high sleep studies. They find that training in a deficit when it’s difficult will produce a better response than training under ideal circumstances. You can stress your body in different ways, but don’t give it glucose every day. Personally, I believe that you are not only negatively impacting your body but also making it more dependent on glucose for the duration of the adventure or ride. Although you know that you will need to add it in, if you’re fat-adapted, you can still run up to 15-20 miles per day.
This is why we need to be attentive.
