Dynamic Knee Extension Test

Testing and measurement are the means of collecting information upon which subsequent performance evaluations and decisions are made but in the analysis we need to bear in mind the factors that may influence the results.

Objective

The objective of this test is to assess the strength of the athlete's knee extensor muscles

Required Resources

To undertake this test you will require:

  • Universal knee flexor/extensor bench
  • Assistant

How to conduct the test

  • The athlete sits on the end of the bench with the padded edge of the bench against the posterior surface of the knee joint
  • The feet are hooked behind the padded rollers. The hands grasp the sides of the bench just behind their buttocks
  • The correct technique involves a complete extension of the knee, conducted in a smooth and continuous movement
  • The initial resistance should be approximately 33% of male body mass and 25% of female body mass
  • If the athlete can successfully complete one repetition, repeat the procedure after one minute, adding an additional weight to the previous resistance.
  • Continue with this procedure, allowing one minute recovery between attempts until the 1RM has been determined
  • Record the final resistance

Analysis

Analysis of the result is by comparing it with the results of previous tests. It is expected that, with appropriate training between each test, the analysis would indicate an improvement.

Target Group

This test is suitable for active athletes but not for individuals where the test would be contraindicated.

Reliability

Reliability would depend upon how strict the test is conducted and the individual's level of motivation to perform the test.

Validity

There are no published tables to relate results to potential performance in competition.

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Associated Pages

The following Sports Coach pages should be read in conjunction with this page:

Associated Books

The following books provide more information related to this topic:

  • Advanced Studies in Physical Education and Sport, P Beashel et al., ISBN 0 17 4482345
  • Physical Education and the Study of Sport, B. Davis et al., ISBN 0 7234 31752
  • Essentials of Exercise Physiology, W.D. McArdle et al., ISBN 0 683 30507 7
  • Physical Education and Sport Studies, D. Roscoe et al., ISBN 1 901424 20 0
  • The World of Sport Examined, P. Beashel et al., ISBN 0 17 438719 9
  • Advanced PE for Edexcel, F. Galligan et al., ISBN 0 435 50643 9
  • Examining Physical Education, K. Bizley, ISBN 0 435 50660 9
  • Sport and PE, K Wesson et al., ISBN 0 340 683821
  • PE for you, J. Honeybourne, ISBN 0 7487 3277 2