NCIDQ IDFX Practice Exam

What is the main focus of the study of ergonomics?

1. Human interaction with technology

2. Relation between human physiology and the physical environment

3. Development of measurement tools

4. Impact of environmental changes on health

The correct answer is: Relation between human physiology and the physical environment

The main focus of ergonomics is indeed the relationship between human physiology and the physical environment. Ergonomics is a multidisciplinary field that seeks to optimize the interaction between people and their work environments, thereby enhancing comfort, safety, and efficiency. It examines how physical factors—such as workspace design, equipment use, and posture—impact human performance and well-being. By understanding how the physical environment can be adjusted to fit human capabilities and limitations, ergonomic principles can be applied to improve productivity and reduce the risk of injury. This focus on aligning physical surroundings with physiological needs is central to designing workspaces that support health and performance in various settings, from offices to industrial workplaces. In contrast, while human interaction with technology, the development of measurement tools, and the impact of environmental changes on health are all relevant topics, they do not encompass the primary aim of ergonomics, which is to create a harmonious relationship between individuals and their physical environments to promote optimal functioning.