There are 3 main principles of strength and these govern the type and the amount of muscle you gain. By manipulating the principles and using them strategically, you can make really good progress. Remember, stay consistent.
Mechanics Tension – This is created when the muscle generates force to lift heavy things. The weights used are between 80-90% of your one rep max (1RM) and the reps are usually between 3-8. Long rest periods are required for this, 2-3 minutes between sets.
Metabolic Stress – This is created by maintaining constant tension on the muscles by reversing directions just short of ‘lockout’. The weights used are between 60-70% 1RM and the reps are kept between 12-20 reps. Rest periods are less than 60 seconds.
Muscle Damage – This is created by slow negatives, extended range of motion and high tension in the stretched position of the muscle. The weights used between 70-80% of you 1RM and the reps are between 8-12 reps. Rest periods are between 1-2 minutes.






