This is a category ratio scale with values from 1 to 10
0 Nothing at all
0.5 Extremeely weak(just noticeable)
1 Very weak
2 Weak (light)
3 Moderate
4 Somewhat strong
5 Strong (heavy)
6
7 Very Strong
8
9
10 Extremely strong (almost maximal)
* Maximal
This is a modified scale of perceived exertion. It takes into account Steven's law. This scale also makes it possible to make interindividual comparisons.
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