Periodization also impies working through all the phases of strength training:
1-anatomical adaptation/muscular endurance
2-muscle hypertrophy
3-muscle strength
4-power
Typically, you will repeat these phases over and over. Muscle hypertrophy and strength tend to overlap a lot, then the importance of the power phase is to be able to displace this new weight (implies new body weight + new lifting weight) quickly.
