Sentence:  Experts now contend that problems at work – low productivity, health hazards, accidents, high turn over – may well have their genesis in the work environment – the result of ignorance of <WSD>ergonomics</WSD>. The essence of <WSD>ergonomics</WSD> is to design or redesign the work and the work environment to fit people. It aims to ensure that work procedures, tools, equipment and environment are safe, efficient and comfortable by applying engineering, physiological, psychological and anatomical knowledge. 
Meaning of the word marked with <WSD> tags:  The science of the design of equipment, especially so as to reduce operator fatigue, discomfort and injury. (from c. 1950.)