Why does standing with your 'knees locked' make you pass out?

Subject: Why does standing with your 'knees locked' make you pass out?

Date: Sat Oct 23 16:18:35 1999
Posted by plyoung
Grade level: 10-12 School: Dieruff High School
City: Allentown State/Province: PA Country: USA
Area of science: Anatomy
ID: 940709915.An

Message:


Our Junior ROTC drill instructor is always cautioning the students not to 
lock their knees when they stand at attention.  Can you explain the 
specifics of how this leads to passing out?  Is there a particular blood 
vessel or nerve that gets pressure from the knee cap?  I've tried 
searching the web and your archives for an answer, but I haven't been 
successful.  Thank you for considering my question!

Re: Why does standing with your 'knees locked' make you pass out?

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