In a study of “comfortable” head/neck posture in the absence of a visual target for 24 seated subjects, mean head tilt (Ear-Eye Line) angle was 7.7° above horizontal, and mean head/neck posture (C7-tragus against vertical) was 43.7°. Using these and other studies' findings as reference points for “neutral,” studies examining posture at different computer monitor heights were reviewed: eye-level monitors resulted in head/neck extension.
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