# Leg Strength 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

To monitor the development of the athlete's elastic leg strength.

### Required Resources

To undertake this test you will require:

• Flat non-slip surface
• Cones
• Stopwatch
• Assistant

### How to conduct the test

The test requires the athlete to hop 25 metres as fast as possible

• The athlete warms up for 10 minutes
• The assistant, using cones, marks out a 25 metre section
• The athlete starts at cone A
• The athlete uses a jog run up to the start line cone (B) and then hops the 25 metre section to the finish line (C) on the right leg as fast as possible.
• The assistant starts the stopwatch when the athlete reaches the start line cone (B) and stops the stopwatch when the athlete completes the 25 metre section (cone C)
• The assistant records the time
• The athlete repeats the test hopping on the left leg
• The assistant calculates and records the average of the two recorded times and uses this value to assess the athlete’s performance

### Assessment

For an evaluation of the athlete's performance select the gender, enter the time and then select the 'Calculate' button.

 Gender Female Male Time seconds Assessment -

### Normative data for the Leg Strength Test

The following data (Chu 1997)[1] has been obtained from the results of tests conducted with world class athletes.

 % Rank Females Males 91-100 3.13 - 3.75 secs 2.70 - 3.25 secs 81 - 90 3.76 - 4.50 secs 3.36 - 3.90 secs 71 - 80 4.51 - 5.70 secs 3.91 - 5.00 secs 61 - 70 5.71 - 6.90 secs 5.01 - 6.10 secs 51 - 60 6.91 - 8.15 secs 6.11 - 7.20 secs 41 - 50 8.16 - 8.90 secs 7.21 - 7.90 secs 31 - 40 8.91 - 9.45 secs 7.91 - 8.40 secs 21 - 30 9.46 - 10.05 secs 8.41 - 8.95 secs 11 - 20 10.06 - 10.34 secs 8.96 - 9.25 secs 1 - 10 10.35 - 10.70 secs 9.26 - 9.60 secs

### Analysis

Analysis of the test result is by comparing it with the athlete's previous results for this test. It is expected that, with appropriate training between each test, the analysis would indicate an improvement in the athlete's leg strength.

### Target Group

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

### Reliability

Test reliability refers to the degree to which a test is consistent and stable in measuring what it is intended to measure. Reliability will depend upon how strict the test is conducted and the individual's level of motivation to perform the test. The following link provides a variety of factors that may influence the results and therefore the test reliability.

### Validity

Test validity refers to the degree to which the test actually measures what it claims to measure and the extent to which inferences, conclusions, and decisions made on the basis of test scores are appropriate and meaningful. This test provides a means to monitor the effect of training on the athlete's physical development.

• Minimal equipment required
• Simple to set up and conduct
• Can be conducted almost anywhere

• Assistant required to administer the test

### Referenced Material

1. CHU, D.A. (1996) Explosive Power and Strength. Champaign: Human Kinetics