Ergonomics find the suitable definition: a

Awkward Posture is ……..



A) The study and measurement of human physical dimensions. It is a branch of the human sciences that deals with the measurements of body size, shape, strength and working capacity


B) Any fixed or constrained body position that overloads muscles, tendons, or joints. Generally, the more a joint deviates from the neutral position the more the posture is considered to be 'awkward' and the greater the risk of injury*


C) This refers to the degree to which relationships between controls and displays are consistent with our expectations. • We all have expectations concerning the movement of a control and its expected effect on a display/device


D) Use of muscles to generate force such that the length of the muscle changes during the activity, resulting in motion around a joint
4. Frequency is ….
A) in ergonomics terms, refers to how often we repeat / do something. • The 'units' of interest for frequency will vary depending on the task being looked at. For many repetitive type tasks we are interested in looking at frequency in terms of the number of repetition / actions per minute*
B) There are two sorts of glare • – discomfort glare and disability glare. • The mechanisms of both are unknown, but the conditions under which discomfort glare occurs and the ways in which disability glare can affect performance are well known


C) The amount of energy (power) used by the body at any point of time ... at work or at rest. It is usually expressed in terms of kilocalories per minute (kcal/min) or in terms of the amount of oxygen used (litres of O2)


D) The study and measurement of human physical dimensions. It is a branch of the human sciences that deals with the measurements of body size, shape, strength and working capacity
5. Contact Stress is ……


A) Work practices, work methods, policies and procedures established by the employer with the goal of reducing exposure to a work- related risk / hazard. Ear plugs are an administrative control to reduce the risk of hearing loss.


B) Fatigue is a loss of work capacity resulting from preceding work. • It is usually associated with a loss of efficiency and reduced capability. • Fatigue is both a physical and a psychological state


C) Exposure of a body part to a hard or sharp surface/edge from a workstation or a hand tool, e.g. leaning forearms against the sharp edge of a desk/table. • Contact stress has been associated with the development of some WMSDs *


D) This refers to the degree to which relationships between controls and displays are consistent with our expectations. • We all have expectations concerning the movement of a control and its expected effect on a display/device

6. I enjoy ….. a songs.