active activity adjustment alone armchair armrests arms back backrest being benefit break breath breathing business busy cabinet caucasian chair chest code comfort computer concept controlled corporate corporation creative design designed desk desktop development dress duty efficiency effort electrically elegant employee environment ergonomic exercise extension factors fit fluorish form fresh functional furniture hard health healthy height human ideas industrial intensive jacket laptop leg lifestyle lifting man mental need notebook office one operative organisation performance performing physical position posture powerful practical practice prevention priority productivity profession professional proper raising real relax relief safety seated shirt shoes short solution space stand standard standing state strain stretch stretching success suit system table task therapeutic tie typing well wheels white working workstation yoga young zone