Class 6

Question 1

Define ROM

Answer 1

Range of motion is the maximum possible angular displacement of a joint. it indicates how far a joint can move in a particular direction.

Question 2

What is meant by strength in ergonomics?

Answer 2

Is the maximum force/ moment muscles can develop under prescribed conditions.

Question 3

Describe the anatomical position?

Answer 3

is a universally accepted reference posture where the body stands upright with feet together, arms at the sides, palms facing forward, thumbs pointing away, and fingers extended

Question 4

List the three anatomical plans of motion

Answer 4

1-. sagittal plane (divides the body into left and right halves)
2-. frontal plane (divides the body into front and back portions)
3-. Transverse plane (divides the body into upper and lower portions)

Question 5

What methods are used to measure range of motion and posture in ergonomics?

Answer 5

ROM and posture can be measured using a manual or electro goniometer and an inclinometer, which help quantify joint angles and movements accurately.

Question 6

Define Psychophysical strength

Answer 6

the maximum force/moment that can be exerted for an extended period of time without overexertion.

Question 7

What are the different types of muscle strength measurement?

Answer 7

Isometric = no motion
Dynamic = strength test allowing motion
Psychophysical = The maximum force/moment that can be exerted for an extended period of time without overexertion. Subjectively determined