1 / 23

Isokinetic Strength and Power Testing

Isokinetic Strength and Power Testing. Dynamometers. Definitions. Isometric – same length Isotonic – same resistance Isokinetic – same speed. Desired Information. What is the purpose of the test? Who is being tested? Speed, strength, power, endurance?. Desired Information. Peak Torque

nichelle-brown
Télécharger la présentation

Isokinetic Strength and Power Testing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Isokinetic Strength and Power Testing

  2. Dynamometers

  3. Definitions • Isometric – same length • Isotonic – same resistance • Isokinetic – same speed

  4. Desired Information • What is the purpose of the test? • Who is being tested? • Speed, strength, power, endurance?

  5. Desired Information

  6. Peak Torque Total Work Average Power Agonist/Antagonist Ratio Bilateral Ratio Analysis

  7. Max Torque Force Min 240 0 750 d/s Torque/Velocity Curve

  8. Torque/Velocity Curve

  9. Total Work • Torque x Distance • Area under the curve • Includes force, lever arm and distance traveled

  10. Max Torque Work Min 240 0 750 d/s Work/Velocity Curve

  11. Average Power • Work/time • Includes all other variables • May be most closely related to activities of daily living • Measure of explosiveness

  12. Power Max Torque Min 0 240 750 d/s Power/Velocity Curve

  13. Power/Velocity Curve

  14. Velocity • The key to life! • Force is ONLY a byproduct of velocity. • Acceleration is the KEY to velocity. • Max velocity results in max energy. • Goal is to maximize the RATE of force development.

  15. Load RangeAcceleration and Deceleration

  16. Load Range/Velocity

  17. Bilateral

  18. Confounding Elements • Spikes • Oscillations • Overshoot • Impact

  19. Non-Windowed

  20. Windowed

  21. Agonist/Antagonist Ratio • Unilateral ratio of muscle groups • Quadriceps to hamstring value • 60% at 60 d/s • Internal to external shoulder rotators • Dorsi to plantar ankle value

  22. Bilateral Ratio • Ratio of left to right • 10-15% at 60 d/s • Ratio increases with velocity • May identify imbalances

  23. Practical Application • Biodex System 3 • $45,000.00 • Research, rehab and evaluation.

More Related