Chapter 13 Questions
1. What are the limitations of isokinetic exercise/testing?
2. Which isokinetic dynamometer has published norms?
3. force or torque, which parameter is most often used?
4. What is power and how do you measure it on a isokinetic test?
5. Why would time it takes to drop to 59% peak torque be important?
6. Consistency during isokinetic testing is important, what 2 variables should you control to increase consistency?
7. What is the recommended velocity for concentric and eccentric testing?
8. What is coactivation and when does it occur? Give an example using the knee.
9. How can you modify testing position to protect healing structures? Give 1 example at the shoulder and 1 at the knee.
10. Why does length of the lever arm affect torque production?
11. How may practice sessions are recommended before a patient should be tested?
12. Why is the reliability poor when testing multiaxial joints?
13. Should an isokinetic test stand alone as the means to progress a patient back to full activity? If not, why?
14. When interpreting an isokinetic test what values do you look at and why?
15. What does the shape of the graph tell us?
16. What is the force velocity curve? What does it mean when applied to a real patient during isokinetic exercise?
17. How would you use isokinetic exercise early in a rehab program?