PPL rotates push, pull and leg sessions, so each pattern gets two days off before it comes round again. Six sessions a week train every muscle group twice. When weekly volume is not matched, twice a week has out-grown once a week in the frequency research (Schoenfeld, Ogborn and Krieger, 2016).
The first push, pull and leg days are the heavy wave, with the main compound in the 4 to 7 rep range. The second three are the volume wave: 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. On Pro, MuscleBuddy eases a week for you when your recovery scores trend down, and you can mark any week a deload in the periodization calendar. On Free, a lift that falls short of its rep range three sessions in a row gets a 10% back-off, and the next block you generate closes with a scheduled deload week. Treat a deload as productive: it lets accumulated fatigue clear so the next block opens from a fresh baseline.