This invention relates to a chair to be used by workers such as {HEAD ~ programmers} who spend {TAIL ~ long periods} of time in chairs and particularly to a chair that provides knee restraints together with lower back restraint that relieve strain on the back 
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This invention relates to a chair to be used by workers such as { HEAD ~ programmers } who spend { TAIL ~ long periods } of time in chairs and particularly to a chair that provides knee restraints together with lower back restraint that relieve strain on the back
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