man and woman working in correct sitting posture with laptops at desks in office

activity adjustable age aged armrests back balding being benefit business busy caster casual chair coach computer concrete corporate couple coworker coworkers coworking design desk desktop dress duty electric employee environment ergonomic eyeglasses factors female focused furniture headrest health healthy heels height high human industrial keyboard laptop lifestyle male men middle mobile mobility model norm notebook office performance position posture productivity profession professional profile proper real rotary safety seated sitter space standard straight strain swivel system table team tension therapeutic tilt together trainer two typing wall well wheelchair wheels women workers working workstation writing young