1. 12 Rep rule .

1. 12 Rep rule

Most weight training program include this much repetitions for gaining muscle. The truth is this approach places the muscles with not enough tension for effective muscle gain. High tension e.g. heavy weights provides muscle growth in which the muscle grows much larger, leading to the maximum gains in strength. Having longer tension time boosts the muscle size by generating the structures around the muscle fibers, improving endurance.

The standard prescription of eight to 12 repetitions provides a balance but by just using that program all of the time, you do not generate the greater tension levels that is provided by the heavier weights and lesser reps, and the longer tension achieved with lighter weights and more repetitions. Change the number of reps and adjust the weights to stimulate all types of muscle growth.