"One is... SAID(Specific Adaptation to Imposed Demands) principle, second is overload(increasing the intensity above that which is accustomed), and last is progression(increases in volume and intensity that occur over a period of time. I also use a balance of structural/power(load the spine), core(multi-joint), and assistance(single-joint) type exercise movements. Depending on your resistance training goals I can set up a program to meet any training criteria, Power, Strength, Hypertrophy, or endurance."