Class 2 - Movement Patterns and the QMD

Question 1

How would you ensure that you filmed properly? (5)

Answer 1

1. filming in one plane of movement per camera
2. keep camera stationary
3. make sure entire cycle of movement can be seen
4. consider using tight dark clothing and markers
5. include an object of known length in the picture

Question 2

What are the planes to film in (3)

Answer 2

flex.ext = in sagittal plane
ab/aduction = in frontal
rotation = transverse

Question 3

How would you go about establishing a coordinate system?

Answer 3

• find origin (corner of page)
• find x and y axis

Question 4

what is the conversion factor for digitizing length from an image?

Answer 4

actual length of object (m)/ measured length of object in photo (m)