Best Answer

It blocks the blood flow in your body causing a lack of oxygen to your brain.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why does locking your knees make you pass out?
Write your answer...
Still have questions?
magnify glass
Related questions

Can locking your knees make you pass out?

It definitely can, but it does not always occur. Depending on how your knees are shaped, standing with your knees bent for just 10 minutes can sometimes make you faint. If your knees are shaped a certain way, then locking your knees pinches a major artery just slightly, stopping a small amount of blood to stay in your legs instead of going to your brain. The longer you stand like that, the less oxygen goes to you brain. First you will feel woozy, then you might feel very nauseous, and then you wake up on the ground, wondering what happened. Just recently during a choir performance I, not knowing any of this yet, stood with my knees locked the entire time, because it uses less muscle. I felt like I was going to throw up, saw colors, and then I woke up on the floor with three other choir members trying to help me up.

Should you lock your knees while doing a barbell curl?

No no no! Locking your knees while exercising in any way can cause joint problems and hyper-extension. Never lock your knees!

Why do your feet sometimes go bright red when you have been stood up for a while?

your feet turn red because all the blood in your body is going down to your feet, due to gravity, if you stand up to long with your knees locked you may pass out because the blood going to you brain lessons witch causes dizziness and lost of people pass out, EXAMPLE: people in wedding pass out all the time.....clue? they are locking their knees for to long........!

Will locking your legs for a period of time make you pass out please elaberate?

yes, it will. When you lock your legs it cuts off the circulation

What is an air locking windows?

Air locking windows are types of windows that do not allow air to pass through them. These are the types of windows that are normally used in aircrafts.

How long does it take to pass out with locked knees?

I had my knees locked for a while, and it hadn't even been one minute when I started feeling dizzy and passed put.

Do you pass out if you lock your knees for fifteen minutes?

yes it has happened to me and was a none to pleasent expeirence

Why do knees make a lound noise on crawling?


Is it a completed pass if both knees are on the ground?

Yes. It is a completed pass if both knees are on the ground. The only situation that would make it an incomplete pass is if one or both knees were out of bounds. In college football, the play would be whistled dead and the line of scrimmage would be at the dead ball spot. In the NFL, if the receiver was not touched while in the process of making the catch, he is free to continue his forward progress until he is tackled. I have seen receivers roll while on the ground, and many times they dive or fall while making the catch and get up and run...

How do you get smaller knees?

A person can lose weight to make their knees lose some extra bulge, or they can have plastic surgery done on their knees. Other than that, there is no way a person can get smaller knees.

What makes it possible for your knees and ankles to work?

Joints make it possible for your knees and ankles to work.

How do you pass in vollyball?

You bend your knees , You hit with the flat part of both arms , get someone to show you .