Deck 6: Performance Improvement Through Qualitative Biomechanical Analysis

Question 1

If planning a systematic observation strategy for a qualitative analysis of a international standard discus thrower in a domestic competition, with only one camera available to you, which might be the most useful of the following in deciding where to position the camera?

A) Where TV cameras are, or would be, placed
B) From where the thrower's coach mostly observes in training
C) Which aspect of the throw you have decided to focus on
D) All of these might be very useful

Answer 1

D

Question 2

What is the main function of the intervention stage of movement analysis?

A) Using key words
B) Trying to bring about an improvement in performance
C) Conducting a review
D) None of these

Answer 2

B

Question 3

Which of the following activities has a performance criterion that has both objective and subjective aspects?

A) The high jump
B) Sprinting
C) Ski jumping
D) Shot putting

Answer 3

C

Question 4

What is the main task of the preparation stage of qualitative movement analysis?

A) Finding out the names of the athletes involved
B) Establishing the critical features of the activity being studied
C) Formulating an observation plan
D) Formulating intervention guidelines

Question 5

What is the most important task, overall, in the four-stage approach to qualitative analysis?

A) Establishing the critical features of the movement
B) Putting video cameras in the right places
C) Providing feedback
D) Getting to know performers

Question 6

Which of the following does NOT apply to the evaluation and diagnosis stage of qualitative movement analysis?

A) It can do more harm than good
B) Previous stages need to have been done well
C) It is essential preparation for the intervention stage
D) NONE of these - they all apply

Question 7

Which of the following is not a critical feature affecting landing distance in the long jump?

A) Having the feet ahead of the body at landing
B) Controlling angular momentum during the flight phase
C) Not falling back in the sand
D) Take-off height

Question 8

Which of the following is the best approach to establishing critical features for a subjectively judged sport, such as gymnastics?

A) Deterministic modelling
B) A constraints-led approach
C) Using an elite-performer template
D) Using the judging criteria for the sport

Question 9

Which of these is one of the two basic rules of deterministic (or hierarchical) modelling)?

A) All the boxes in level 2 are linked to all the boxes in level 1
B) The boxes in level 2 are, if possible, a sub-division of the performance criterion
C) All boxes on one level are dependent on all the other boxes on the same level
D) None of these

Question 10

A positive slope on an angle-time graph corresponds to:

A) Positive angular acceleration
B) Negative angular acceleration
C) Positive angular velocity
D) Negative angular velocity

Question 11

Angular acceleration is:

A) Change in angular velocity with time
B) The curvature of an angle-time graph
C) The slope (or gradient) of an angular velocity-time graph
D) All of these

Question 12

Continuous relative phase:

A) Shows the variation of the relative phase angle with time
B) Expresses changes in bimanual coordination
C) Expresses changes in locomotor coordination
D) All of the above

Question 13

On a displacement-time graph, how can we deduce when the acceleration is zero?

A) When the slope of the displacement-time graph is zero
B) When the curvature of the displacement-time graph is zero
C) When the displacement is a maximum
D) None of the above

Question 14

The relative phase angle between two joints is:

A) The difference between the phase angles of the two joints
B) The difference between the angles of the two joints
C) The difference between the angular velocities of the two joints
D) The difference between the angular accelerations of the two joints

Question 15

Velocity is:

A) Change in acceleration with time
B) Change in position with time
C) Change in force with time
D) Change in position with angle

Question 16

What two variables are normally used to plot a phase plane in human movement analysis?

A) Angle and angular velocity
B) Angle and angular acceleration
C) Angular velocity and angular acceleration
D) None of the above

Question 17

Which of the following can 'qualitatively' distinguish between coordination patterns?

A) Topological equivalence
B) The number of coordination changes (e.g. in-phase to anti-phase) in a cycle
C) Number of loops in the pattern
D) All of the above

Question 18

Which of the following statements is true for phase planes?

A) They are all true
B) If extension is defined as increasing joint angle, then all (sagittal) phase planes progress clockwise with time
C) They are used, in pairs, to derive continuous relative phase
D) They are usually plots of angular velocity against angle for the same joint

Question 19

Which of the following would be most useful in studying movement coordination?

A) An angle vs time graph
B) An angle-angle diagram
C) A velocity vs time graph
D) A stop watch

Question 20

Cross correlation functions are:

A) Plots of one joint angle against another
B) Graphs of angle against time
C) Graphs of the correlation coefficient between two joint angles with the lag between them progressively removed
D) Graphs of angular velocity against time