L23 - Movement Variability

Question 1

what is movement variability

Answer 1

differences in behaviour, technique or performance over time. (mean, SD)

Question 2

what is an example of movement variability?

Answer 2

change in HR as steady state approaches or multiple tennis serves results.

Question 3

what is end point variability?

Answer 3

variability in the trajectory of the end chain of kinetic movement.

Question 4

what is coordination variability

Answer 4

variability in the relationship between segments controlling the end point.

Question 5

what does funneling variability refer to?

Answer 5

as you get firther distal the variability decreases. e.g. at the start the variaibly could be 95% and then at the end it would be 5%

Question 6

what are the possible roles of variability?

Answer 6

1. to provide flexibility and adaptability in new and varying environments.
2. to reduce repetitive tissue loading
3. initiating the transition from one stable mode of coordination to another.

Question 7

how can sport see deviation to the ideal movement (if that exists)?

Answer 7

expert performers are more consistant and therefore their actions are less variable.

Question 8

how can clinical see deviation to the ideal movement (if that exists)?

Answer 8

injurjed patterns have reduced motor function and control; therefor will be more variable

Question 9

how can development see deviation to the ideal movement (if that exists)?

Answer 9

indivduals who are under-developed sensory perception therefore actions will have more variety.

Question 10

what is a syneregy

Answer 10

how variables can work together to minimise errors. as if one makes an error the other can work harder to minimise it. a good reason to treat them indivdually.