Define Principles of Resistance Training

Be sure to cite your source(s) of information, both in the text and at the end of the paper. A grading criteria indicating point values for each question is located below.
Define each of the following using your own words and provide an example of how each Principle can be used in your current training:
1) Overload
2) Progression
3) Specificity
4) Variation
5) Reversibility