I read that as well (can't recall where). Here is one reference I did find: http://ergo.human.cornell.edu/DEA3250notes/sitting.html http://ergo.human.cornell.

I read that as well (can't recall where). Here is one reference I did find: http://ergo.human.cornell.edu/DEA3250notes/sitting.html http://ergo.human.cornell.edu/DEA3250notes/sitting.html