Strength Tests

About these Tests

Comprises: Muscular Endurance, Isometric, Grip Leg and Back, The Can-U, and Dynamic.

This test, like all tests of maximum strength, power or other physical performance can be performed by the majority of the population without problems provided that appropriate preparation has been done. This includes: warm-up exercises, mobility and stretching exercises several submaximal efforts doing the same movement pattern as the test, ie. back strength test. screening subjects for any potential back/ neck problems or other musculo-skeletal problems which may be exacerbated by this maximal effort.

This group of tests focuses on Strength and as such certain precautions are necessary when carrying out these tests:
1. Screen all subjects to ensure that they are not at risk in performing strenuous exercise. A general screening procedure recommended is the ACM pre-exercise screening method. If doubt still exists ask the subject to obtain medical clearance.
2
Explain the correct breathing technique when exerting maximum or near maximum effort. The subject should breathe in prior to exertion and breathe out as maximum force is exerted. The subjects should not hold their breath during this form of exercise as this will cause a high pressure build up within the chest cavity, restricting blood flow to the heart and possibly lead to fainting (Valsalva Manoeuvre).
3.
Demonstrate the correct exercise technique to the subject, emphasising performance through the full range of the specific movement which for example might include full extension of the elbow joint, and returning to the initial starting position.
4.
Incorrect technique must not be accepted. In such instances, following an adequate recovery period (at least one minute), the exercise is to be repeated.
5.
When a subject is unable to overcome a particular resistance, he/she may be given a second attempt after one minute of recovery.
6.
Dynamic strength test involve determining the maximum weight that can be lifted for one repetition. This is called a "one repetition maximum" or "1RM".
7.
When the Universal stations are used to determine maximal strength it is standard practise to record the value (weight) on the left side of the weights on the stack. The variable resistance created through the use of changing force arms (lever lengths) results in variable weight being lifted. The larger number indicates the approximate weight lifted during the strongest part of the lift. However for standardisation, we recommend recording the smaller number. The smaller numbers have been used to establish norms in this software.
8.
For exercises involving one side of the body. or one limb, the subjects should use their preferred or dominant view.

[Reference: Heyward (1984)]