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6 Applications and Methods in Biosignal Processing

10. How can the activities of the bands be determined?

11. Describe the use of EEG in sleep research.

12. What is meant by short-term FFT? What is it used for in EEG?

13. What is understood by topography, what by tomography?

Signals of the Muscles and Motions

1.

What is EMG used for? What results does it give?

2.

How is an EMG signal generated? Describe the physiological structure and the

origin of the electrical signal at the electrodes.

3.

How can the fatigue of a muscle be described quantitatively on the EMG?

4.

What influence do electrodes (shape, size, material) have on the measurement?

5.

What characteristics should an EMG amplifier have?

6.

Do you really measure the exact activity of the muscle at the surface?

7.

Name the magnitude of the conduction velocity in the nerve and in the muscle.

8.

In what form is this expressed in the spectrum of the EMG in muscle fatigue?

9.

What information does a power density spectrum contain?

10. By which parameter can muscular fatigue be described?

11. Do the knee bends by your own and document the movement by means of a mo-

bile camera.

12. Describe the kinetic behaviour of your knee bends.

13. Think about a biomechanical model of your body.

14. Develop a biomechanical model on the base of a multi body system.

15. Think about the moment of inertia of the different masses.

16. Think about the ground reaction force during the knee bend. Use a mechanical

weighing machine and observe the scale.

17.

What is in principle the difference between the parameters force and joint angle?

18. What kind of measurement system are used to document the external force and

the joint angles in human movement analysis?

19. What kind of models are used to analyse the biomechanics of the human move-

ment?

20. What is the difference between static and dynamic in biomechanics?

21. What is osteoarthrosis?

22. In which manner are the patient burdened during the examination in gonarth-

rosis?

23. What kind of phases are defined for the joint angle in the acoustic-kinetic ana-

lysis?

24. Why you cannot transfer the definition of the phases of the joint angle immedi-

ately to the force?

25. What kind of biomechanical defined phases are used for the force?

26. In which case you have to synchronise the signals of the force and the joint angles?

27. What kind of attributes are used to synchronise the force and the joint angle?