PPL alternates push, pull, and leg sessions so each major movement pattern gets a full rest day before being trained again. With six sessions a week you hit every muscle group twice, the well-established weekly frequency for maximizing hypertrophy.
The two-wave structure (Heavy → Volume) lets you push close-to-1RM intensity on day one of each pattern, then chase pump and metabolic stress on the second wave with higher reps, more isolation, and shorter rest. Top working sets sit at RPE 8 on heavy days and RPE 9 on volume days.
On MuscleBuddy this program runs with double progression: stay in the rep range, and once every working set reaches the top of it with good form, the next session adds a small weight increment. If you come up short of the bottom of the rep range three sessions in a row, MuscleBuddy takes about 10% off that lift and you build back up from there.
The block runs four working weeks with no deload week written in. MuscleBuddy eases a week for you when your recovery scores trend down, and you can take a deload week yourself whenever you need one. Treat a deload as productive: it lets accumulated fatigue clear so the next block opens from a fresh baseline.