a number of times
2007-07-08 19:06:11 · 11 answers · asked by Anonymous in Politics & Government ➔ Military
They lock their knees, slowing down the blood flow, which causes less oxygen to make its way through their bodies. Doing this, at attention, for any long period of time, can cause a person to faint.
2007-07-08 19:11:53 · answer #1 · answered by Anonymous · 3⤊ 0⤋
Standing for an extended period, especially in very hot weather -- and especially with locked knees -- can make people pass out. Inactivity can cause blood to settle in the lower parts of the body, reducing the amount of blood flowing into the brain.
2007-07-08 19:13:07 · answer #2 · answered by Beckers 6 · 0⤊ 0⤋
When you straighten you legs totally you have a little muscle in the back of your knee (the popliteal muscle). This muscle when contracted rotates the knee a couple degrees putting pressure on the popliteal artery, slowing blood flow. Also when the muscles in your legs flex and relax they pump blood through the veins. Locking your legs with the muscles flexed slows the bloodflow through the whole body causing dizziness and fainting. If you unlock you knees, rock back and forth slightly or flex and relax your leg muscles you should be OK.
2007-07-09 00:03:20 · answer #3 · answered by Anonymous · 1⤊ 0⤋
They lock thier knees, which can cut off or reduce blood flow thru the legs.
This lowers blood pressure throughout the body.
Lower blood pressure, means not enough blood flow to the brain,
Which means reduced oxygen to the brain.
Reduced oxygen to the brain, makes people faint.
2007-07-08 19:13:08 · answer #4 · answered by jeeper_peeper321 7 · 1⤊ 0⤋
Rofpmsl. the cashier had a great quick come back for him, that was so freaking hilarious. This is really worth a million stars. 100/100.
2016-05-17 09:20:16 · answer #5 · answered by henrietta 3 · 0⤊ 0⤋
its when you lock you knees the blod flows heavily to your feet, and your heart slows the pumping because its a straight shot up and no leverage, same reason u get a headrush when standing on your head
2007-07-09 05:18:21 · answer #6 · answered by ingobowen 2 · 1⤊ 0⤋
when they lock thier knees it cause a restriction in the veins and it will make you pass out thats why you have to slightly bend your knees
2007-07-08 19:13:47 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Locking their knees. They lose their balance and fall over.
2007-07-08 19:12:56 · answer #8 · answered by dark bubble 7 · 1⤊ 0⤋
dehydration, stress, fatigue, locking the knees, heat exhaustion.
2007-07-09 01:48:04 · answer #9 · answered by Mrsjvb 7 · 0⤊ 0⤋
because of the blood flow, i do cadets and we are ment to rock slightly on you feet to keep the blood flowing to your Feet,legs ect.
2007-07-08 19:21:57 · answer #10 · answered by Anonymous · 0⤊ 0⤋