Lecture 6

Question 1

two challenges for motor control researches, coaches, teaches…

Answer 1

develop and disseminate new valid, reliable knowledge for appropriate audience.

Interpret new knowledge with respect to evaluating, understanding and improving human motor performance/behaviour.

Question 2

validity

Answer 2

testing behaviour or performance.

The degree to which the test actually measures what it purports to measure.

Question 3

Performance outcome

Answer 3

measures focus on the end result - the outcome of performing a skill.

Question 4

Performance process

Answer 4

measures focus on how movement was performed.

Question 5

Product (outcome) and process (technique) measurement.

Answer 5

Outcome and process measures (and experimentation) provides a platform for testing the validity of motor control theories.

Question 6

Three broad categories of experimental methods:

Answer 6

mechanical, electrical and metabolic

Question 7

Mechanical

Answer 7

• joint/segment motion, control of force, movement success, interactions between person and environment.

Question 8

Electrical

Answer 8

electromyography (EMG), i.e., muscles, electroencephalography (EEG), i.e., brain.

Question 9

Metabolic

Answer 9

magnetic resonance imaging (MRI), fMRI, position emission tomography (PET).

Question 10

how many repeated measures do you need for variability

Answer 10

10 trails.

Question 11

How can we study coordination

Answer 11

Mechanical Joint angle v time (left figure) – Range of Motion (ROM), max or min joint angles, timing of changes between flexion and extension
Angle angle diagrams (middle and right figures) – visualise coordination patterns, qualitative interpretation

Question 12

Performance process measures i.e., technique

Answer 12

Angle angle diagrams – visualise coordination patterns, qualitative interpretation.

Question 13

how can we study coordination - mechanical

Answer 13

EMG. dart throwing lab